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Scientific Data Documentation

International Classification Of Diseases - 9, Abbreviated Titles

DSN: CC37.CODES.ICD9ABB


TECHNICAL SPECIFICATIONS

 Each file is an IBM type tape with:

    1)  EBCDIC limited character set (no lower case alphabetic characters).

    2)  9 channel, 1600 BPl, odd parity.

    3)  Logical record size is 84 bytes (fixed length) (divisible by 6).

    4)  Ten records per physical block, 840 bytes per block.

    5)  Label records are omitted.

    6)  No tape mark before first data record, two tape marks after last
        data record.

    7)  The last block will not be padded, but will be a short block, if ten
        records are not present.

    8)  A new 2400 foot tape reel is used.

   ***Cataloged DSN - CC36.ICD9ABB

 ICD-9-CM ADJUNCT MATERIALS

 CODES AND TITLES FILES, MAGNETIC TAPE FILE ChARACTERISTICS

 Overview of Records

  Four magnetic tape files contain ICD-9-CM codes and their titles:

   ICD-9-CM codes and full titles.
   ICD-9-CM codes and abbreviated titles.
   Sex-specific ICD-9-CM codes and full titles.
   Sex-specific ICD-9-CM codes and abbreviated titles.

 The user of ICD-9-CM Codes and Titles Magnetic Tape Files should review the
 materials provided with each individual file.  The materials include
 instructions for use and magnetic tape file documentation.

 The files have many similarities including a standard record layout except
 as noted below:

 The files for sex-specific codes, with either full or abbreviated titles,
 contain a character for sex identification.

 The abbreviated title record has a six-digit line number preceding "Section."

 Consecutive Fields                              Comments
 ------------------                              --------
 Section                    Used to identify Volume I (Diseases, content = D)
                            and Volume 3 (Procedures, content = alpha 0.).

 Code Prefix                Used to identify External Causes codes of the
                            Disease Section.  This prefix is used to allow
                            code alignment on implied decimal point
                            throughout all files.

                            NOTE:  When an "E," indicating External Cause, is
                            present in this field, the fifth-digit of the
                            code will always be space.
         Example:

                            Code Digits
         Prefix              1 2 3  4 5
         ------             -----------
           E                 8 0 0  1
                                   + =implied decimal point
                            The example translates to
                            E8OO.1 in printed form.

 Code                       All Disease codes are left-justified, with
                            trailing spaces in three- and four-digit codes.
                            Zeroes are not added to make all codes five
                            digits.  Procedure codes contain a space in the
                            first digit position, to allow alignment on
                            implied decimal point.  Trailing spaces are used
                            for two- and three-digit procedure codes.

                            A Disease code may contain 0-9, or V in the first
                            digit.

                            Any code may contain 0-9 in the second and third
                            digits.

                            A decimal point is implied between the third and
                            fourth digits of the code field.  den printing
                            the code field, a decimal point should print only
                            if the fourth and fifth digits are not space.

                            The fourth and fifth digits may contain 0-9, or
                            space.

 Subdivided Code            "At" sign (@) is present following the code field
 Indicator                  if the code has been subdivided and should not be
                            used for classifying Diseases or Procedures.  The
                            symbol designates an incomplete code.

 Record Sequence            The maximum length for a title on one line is 68
 within Code                characters, but a Full Title may contain more
                            than 68 characters, requiring multiple records to
                            provide the entire title.  This sequence field is
                            present to link multiple records for a code.
                            Record sequence numbers could be 1-9 according to
                            field specifications.  The maximum number of
                            lines present for a title is actually four.

                            Record sequence contains "I" for the Abbreviated
                            Titles file of ICD-9-CM codes.

                            In the Sex-Specific Abbreviated Titles file, this
                            character contains sex identification; F for
                            Female, M for Male.

 Category or                This field allows selection of different code
 Code Type                  types.  As an example, all three-digit disease
                            codes may be selected by interrogating the
                            Section field for "D" and this code type field
                            for "I."

                            Major Category I = 3-digit Disease Code, or
                                               2-digit Procedure Code
                                               preceded by space.

                            Intermediate   2 = 4-digit Disease Code, or
                            Category           3-digit Procedure Code
                                               preceded by space.

                            Minor Category 3 = 5-digit Disease Code, or
                                               4-digit Procedure Code
                                               preceded by space.

                            NOTE:  The "E" prefix is not counted in the number
                                   of digits making EXXX a major category.

 Filler for all Titles Files except Sex-Specific Full Titles Files, where the
 field contains "F" for Female and "M" for Male.

 Title for ICD-9-CM         A maximum of 24 characters is provided for
                            Abbreviated Titles.  A maximum of 68 characters
                            in each of 1-9 records is provided for a code
                            with a full title.

                            If the first character of a title contains an
                            asterisk (*), the code and title are illogical,
                            resulting from the combination of additional
                            digits in ICD-9-CM notes with category code
                            ranges.  These illogical codes should be avoided
                            in classification.

 The following field is present only in the ICD-9-CM Procedure codes with
 Abbreviated Titles file:

   Class (operated or      1-4
   nonoperated)
   Only one class can be associated with one code with the exception of
   procedure code 64.0 (Circumcision).  The age of the patient must be
   checked to determine the class.  If the patient is less than 28 days of
   age, 64.0 is a class 4 procedure.  If the patient is older than 27 days,
   64.0 is a class 1 procedure.  On file, 64.0 is shown with a class of "4,1".
DEFINITIONS OF CLASS

 A.  All significant procedures are to be reported in an ICD-9-CM
     classification code.  A significant procedure is one which carries an
     operative or anesthetic risk or requires highly trained personnel or
     requires special facilities or equipment.

     For certain significant procedures, the identity (by unique number
     within the hospital) of the person performing the procedure and/or the
     date (or day of hospitalization) must be reported.

 C.  When more than one procedure is reported, the principal procedure is to
     be designated.  In determining which of several procedures is the
     principal, the following criteria apply:

    1.  The principal procedure is one which was performed for definitive
        treatment rather than one performed for diagnostic or exploratory
        purposes, or was necessary to take care of a complication.

    2.  The principal procedure is that procedure most related to the
        principal diagnosis.

 D.  For UHDDS purposes, in order to assure 1) uniform reporting of
     significant procedures and 2) completeness of reporting (the inclusion
     of person performing procedure and/or the date) procedural
     classifications in the U.S. clinical modification of ICD-9 have been
     grouped into four classes:

    Class I:  Requires ICD-9-CM procedure code, date, and identity of person
              performing procedure.  This class contains all ICD-9-CM
              surgical procedures.

    Class 2:  Requires ICD-9-CM procedure code and date.

    Class 3:  Requires only ICD-9-CM procedure code.

    Class 4:  Optional, reporting not required.

    In general, Class 1 constitutes the "surgery" group.  Classes 2 and 3
    collectively correspond to "other significant" procedures as previously
    defined.  All procedures in the first three classes are, by definition,
    significant in that they carry an operative or anesthetic risk or
    require highly trained personnel or special facilities or equipment, and
    are, therefore, to be reported.  Procedures in Class 4 do not meet these
    criteria and, therefore, reporting is optional.

 Note:  The above information was taken from the publication UHDDS Classes of
       Procedures, ICD-9-CM, which is available from CPHA.
ACCEPTABLE EBCDIC CHARACTERS FOR INPUT

 Printer    EBCDIC   IBM    UNIVAC        Printer    EBCDIC    IBM    UNIVAC
 Graphic    Punch    HEX    OCTAL         Graphic    Punch     HEX    0ctal
 -------    -----    ---    -----         -------    -----     ---    -----
   @        4-8      7C       00             )       11-5-8   SO        40
            12-2-8   4A       Ol             -       11       60        41
   "        7-8      7F       02             +       12-6-8   4E        42
   #        3-8      7B       03             <       12-4-8   4C        43
   -        11-7-8   SF       04             =       6-8      7E        44
 Space      Blank    40       05             >       0-6-8    6E        45
   A        12-1     Cl       06             &       12       50        46
   B        12-2     C2       07             $       11-3-8   5B        47
   C        12-3     C3       10             *       11-4-8   SC        50
   D        12-4     C4       11             (       12-5-8   4D        51
   E        12-5     C5       12             %       0-4-8    6C        52
   F        12-6     C6       13             :       2-8      7A        53
   G        12-7     C7       14             ?       0-7-8    6F        54
   H        12-8     C8       15             !       11-2-8   5A        55
   I        12-9     C9       16             ,       0-3-8    6B        56
   J        11-1     D1       17             |       12-7-8   4F        57
   K        11-2     D2       20             0       0        F0        60
   L        11-3     D3       21             1       1        Fl        61
   M        11-4     D4       22             2       2        F2        62
   N        11-5     D5       23             3       3        F3        63
   O        11-6     D6       24             4       4        F4        64
   P        11-7     D7       25             5       5        FS        65
   Q        11-8     D8       26             6       6        F6        66
   R        11-9     D9       27             7       7        F7        67
   S        0-2      E2       30             8       8        F8        70
   T        0-3      E3       31             9       9        F9        71
   U        0-4      E4       32             '       5-8      7D        72
   V        0-5      ES       33             ;       11-6-8   5E        73
   W        0-6      E6       34             /       0-1      61        74
   X        0-7      E7       35             .       12-3-8   4B        75
   y        0-8      E8       36             _       0-5-8    6D        76
   Z        0-9      E9       37           None      0-2-8    EO        77

 Notes: Codes are listed in univac collating sequence.
       HEX 00 (12-0-9-8-1) is not acceptable.
FULL TITLES

                  Examples  (b=space)

 Sec-           Code Digits  Subdv.,  Rcd. Code  Fil-
 tion   Prefix   1 2 3 4 5   Ind.     Seq. Type  ler    Title

  D      b       6 7 2 b b    b        1    1     b   PYREXIA OF UNKNOWN
                                                       ORIGIN DURING THE
                                                       PUERPERIUM

  D      b       6 7 3 0 b    @        1    2     b   0BSTETRICAL AIR EMB0LISM

  D      b       6 7 3 0 1    b        1    3     b   OBSTETRICAL AIR EMBOLISM
                                                       WITH OR WITHOUT
                                                       +1st rcd+

  D      b       6 7 3 0 1    b        2    3     b   MENTION OF ANTEPARTUM
                                                       CONDITION +2nd rcd+

  D      b       v 6 8 8 1    b        1    3     b   REFERRAL OF PATIENT
                                                       WITHOUT EXAMINATION OR
                                                       TREATMENT

  D      E       8 0 1 b b    @        1    1     b   RAILWAY ACCIDENT
                                                       INVOLVING COLLISION
                                                       WITH OTHER OB

  D      E       8 0 1 1 b    b        1    2     b   RAILWAY ACCIDENT
                                                       INVOLVING COLLISION
                                                       WITH OTHER OB
                                                        +1st rcd+

  D      E       8 0 1 1 b    b        2    2     b   AND INJURING PASSENGER
                                                       ON RAILWAY +2nd rcd+

  0      b       b 0 1 b b    @        1    1     b   INCISION AND EXCISI0N OF
                                                        SKULL, BRAIN, AND
                                                        CEREBRAL +1st rcd+

  0      b       b 0 1 b b    @        2    1     b   MENINGES +2nd rcd+

  0      b       b 0 1 0 0    @        1    2     b   CRANIAL PUNCTURE

  0      b       b 0 1 0 1    b        1    3     b   CISTERNAL PUNCTURE

 +-implied decimal point
 In the selected Sex-Specific Full Titles file, the filler field contains "F"
 for codes pertinent to female, or "M" for codes pertinent to Male.

 CPHA
 Commission on Professional and Hospital Activities
 1968 Green Road Ann Arbor, Michigan 48105
DOCUMENTATION FORMS
 File Description Documentation Form

                                                           November 29, 1979
                    FILE DESCRIPTION DOCUMENTATION FORM
 File Name:                              Abbreviated Codes and Titles
 Data Set Name (if labeled tape):        N/A
 Brief description of data on file:      File identifier record precedes code
                                         and abbreviated title records for
                                         diseases and procedures

 Source of data:                         ICD-9-CM Volumes
 Computer and operating system utilized: H6O6O, GC0S, Release 3J
 Character code (FIELDATA or EBCDIC*:
   *See attachment for acceptable EBCDIC Characters.

 Language utilized:                      COBOL 74
 Internal Volume Serial Number (if labeled tape): N/A
 Sort sequence key field(s):             Section,Code Prefix,Code
      V codes will be out of sequence in EBCDIC col1ating seq. V
      codes follow
   Ascending or descending?              999 codes and precede External
                                         Cause codes

 Logical Record Length (in bytes):       84 bytes
 Blocksize:                              840 bytes (Last Block Unpadded)
 Record Name:                            File Identifier, Code and Abbreviated
                                         Title

 Exact number of records:                1 File Identifier, 18559 data records
 File Control Totals and derivative fields (as specified by the Project
      Officer):   14473  - Diseases
                   4086  - Procedures


 Other remarks:    9 channel, odd parity, 1600 BPJ, no tape marks before first
                   record, 2 tape marks after last record, 2400 ft. reel

 Name of Agency/Contractor supplying tape:  CPHA
 Record Description Documentation Forms (by Record Name)

 File Identifier Record

                                                           September 8, 1978
                   RECORD DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          File Identifier

 Field                      Starting  Total   No. of   Alphal
 Sequence                   Position  No. of  Decimal  Numeric   Signed?
 Number Data Element Name   Number    Bytes   Bytes    (A or N)  (Y or N)
 ------------------------   ------    -----   -----    --------  --------
  1       REC-1D-CEAR        001        1                AN
  2       FILLER             002       10                 A
  3       FILE-NAME          012       68                AN
  4       FILLER             080        5                 A
 Code and Abbreviated Title Record

                                                           September 8, 1978

                   RECORD DESCRIPTION DOCUMENTATION FORM
 File Name:                             Abbreviated Codes and Titles
 Record Name:                           Code and Abbreviated Title

 Field                        Starting  Total   No. of   Alphal
 Sequence                     Position  No. of  Decimal  Numeric   Signed?
 Number Data Element Name     Number    Bytes   Bytes    (A or N)  (Y or N)
 ------------------------     ------    -----   -----    --------  --------
  1        LN-N0               001       6                  N          N
  2        SECTION             007       1                  A
  3        PREFIX              008       1                  A
  4        CODE                009       5                 AN
  5        SUB-DV              014       1                 AN
  6        RECORD-SEC          015       1                  N          N
  7        CATEGORY            016       1                  N          N
  8        FILLER              017       1                  A
  9        ABV-TITLE           018      24                 AN
 10        FILLER              042       1                  A
 11        GROUP               043       3                 AN
 12        FILLER              046       1                  A
 13        CLASS               047       3                  A
 14        FILLER              050      30                  A
 15        ERRATA              080       1                 AN
 16        FILLER              081       4                  A
 Data Element Description Documentations Forms (by Record Name)

 File Identification Record (by Data Element)
 Data Element: Record Identification Character

                                                           September 8, 1978
               DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          File Identifier
 Field Sequence#:                      1 (From Record Description form)
 Data Element Label Name:              REC-ID-CHAR
 Data Element description:             Record Identification Character
 Source:
 Initialized value:                                A
 Value for missing data:                           Blanks
 Has data been edited?       Yes      How?         Manually
 Allowable range of values:                        A
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character Field
 hero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code    Meaning
 ----    -------
 A       File Identifier Record
 Data Element: File Name

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                             Abbreviated Codes and Titles
 Record Name:                           File Identifier
 Field Sequence#:                       3 (From Record Description form)
 Data Element Label Name:               FILE-NAME
 Data Element description:              File Name
 Source:
 Initialized value:                   ABBREVIATED TITLES WITH ALL CODES
 Value for missing data:                            Blanks
 Has data been edited?        Yes     How?          Manually
 Allowable range of values:                         Alpha - numeric
 Validity checks:                                   Manual
 Ratio checks:                                      N/A
 Units of Measure (dollars, persons, codes, etc.):  N/A
 Justified left or right in field?                  Left
 Zero-filled or blank-filled?                       Blank-filled
 Possible values for codes, and equated meaning:    N/A
 Code and Abbreviated Title Record (by Data Element)

 Data Element: Line Number

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      1 (From Record Description form)
 Data Element Label Name:              LN-NO
 Data Element description:             Line Number
 Source:                                           Computer Generated
 Initialized value:                                000002-999999
 Value for missing data:                           None
 Has data been edited?       Yes     How?          Manually
 Allowable range of values:                        000002 through 999999
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): Number of Lines
 Justified left or right in field?                 Right
 Zero-filled or blank-filled?                      Zero-filled
 Possible values for codes, and equated meaning:   N/A
 Data Element: Tabular List Section ID

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM


 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      2 (From Record Description form)
 Data Element Label Name:              SECTION
 Data Element description:             Tabular List Section ID
 Source:                                           ICD-9-CM Volumes
 Initialized value:                                "D" or alpha "0" selected
                                                   from Titles file

 Value for missing data:                           None
 Has data been edited?       Yes     How?          Manually and by computer
                                                   program IX08XX
 Allowable range of values:                        "D", "0" (Alpha)

 Validity checks:                                  For allowable range of
                                                   values
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character field
 Zero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code       Meaning
 ----       -------
 D          Disease Record
 0 (alpha)  Procedure Record
 Data Element: Code Prefix Indicating External Cause Code

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      3 (From Record Description form)
 Data Element Label Name:              PREFIX
 Data Element Description:             Code prefix indicating external
                                       cause code
 Source:                                           ICD-9-CbJ Volumes
 Initialized value:                                Blank
 Value for missing data:                           None
 has data been edited?       Yes     How?          Manually and by computer
                                                    program IXO8XX

 Allowable range of values:                       "E", "b"
 Validity checks:                                  For allowable range of
                                                     values
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character field
 Zero-filled or blank-f illed?                     N/A
 Possible values for codes, and equated meaning:
 Data Element: ICD-9-CM Code

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM


 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      4 (From Record Description form)
 Data Element Label Name:              CODE
 Data Element description:             ICD-9-CM Code
 Source:                                           ICD-9-CM Volumes
 Initialized value:
 Value for missing data:                           None
 Has data been edited?       Yes      How?         Manually and by computer
                                                   program IXO8XX

 Allowable range of values:                        Col. 9 = V, O-9,b
                                                   Col. 1O,11 = 0-9
                                                   Col. 12,13 =O-9,b
 Validity checks:         Checks for correct section and against CATEGORY for
                          correct amount of digits
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?           Aligned on implied decimal point
 Zero-filled or blank-filled?                Left blank filled, for procedure
                                             code only and right blank filled
                                             for 2 digit procedure or 3
                                             digit disease code
 Possible values for codes, and equated meaning:   N/A
 NOTE:  Implied decimal point between 3rd and 4th digits of a 4 or 5
       digit code.
 Data Element: Subdivided Code Indicator

                                                           September 8, 1978
                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      5 (From Record Description form)
 Data Element Label Name:              SUB-DV
 Data Element description:             Subdivided code indicator
 Source:                                           ICD-9-CM Volumes
 Initialized value:                                Blank
 Value for missing data:                           None
 has data been edited?       Yes     How?          Manually and by computer
                                                   program IXO8XX for allow-
                                                   able range of values
 Allowable range of values:                        "@", "b"
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character field
 Zero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code       Meaning
 ----       -------
 @          Code is subdivided
 Blank      Not subdivided
 Data Element: Record Sequence Within Code

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                  Abbreviated Codes and Titles
 Record Name:                Code and Abbreviated Title
 Field Sequence#:            6 (From Record Description form)
 Data Element Label Name:    RECORD-SEQ
 Data Element description:   Record Sequence Within Code
 Source:                                           ICD-9-CM Volumes
 Initialized value:
 Value for missing data:                           None
 has data been edited?       Yes     How?          Manually and by computer
                                                   program IXO8XX
 Allowable range of values:                        1
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character field
 Zero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code      Meaning
 ----      -------
  1         One record per code
 Data Element: Type of Code

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM


 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      7 (From Record Description form)
 Data Element Label Name:              CATEGORY
 Data Element description:             Type of Code
 Source:                                           ICD-9-CM Volumes
 Initialized value:                                1,2 or 3 as selected from
                                                   Titles file
 Value for missing data:                           None
 Has data been edited?       Yes     How?          Manually and by computer
                                                   program IXO8XX
 Allowable range of values:                        1 through 3
 Validity checks:                                  Compared to actual digits
                                                   present in Code
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - One character field
 Zero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code       Meaning
 ----       -------
  1        3  digit disease code and 2  digit procedure code
  2        4  digit disease code and 3  digit procedure code
  3        5  digit disease code and 4  digit procedure code
 Data Element: Abbreviated Title

                                                           September 8, 1978

                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence                        9 (From Record Description form)
 Data Element Label Name:              ABV-TITLE
 Data Element description:             Abbreviated Title
 Source:                                           ICD-9-CM Volumes
 Initialized value:
 Value for missing data:                           Blanks
 has data been editedi      Yes     How?           Manually and by computer
       Title is checked for length of 24 characters or less.

 Allowable range of values:                        Alpha - numeric
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 Left
 Zero-filled or blank-filled?                      Blank-filled
 Possible values for codes, and equated meaning:   N/A
 Data Element: List A or List B Group Code

                                                           September 8, 1978
                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      11 (From Record Description form)
 Data Element Label Name:              GROUP
 Data Element description:             List A or List B Group Code
 Source:                                           ICD-9-CM Volumes
 Initialized value:                                N/A
 Value for missing data:                           Blanks
 has data been edited?       Yes     How?          Manually and by computer
                                                   program IXO8XX
 Allowable range of values:                        001-398, 501-742
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 Right
 Zero-filled or blank-filled?                      Zero-filled
 Possible values for codes, and equated meaning:
 Data Element: Procedure Class (OPOR NON-OP)

                                                           September 8, 1978
                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      13 (From Record Description form)
 Data Element Label Name:              CLASS
 Data Element description:             Procedure Class (OPOR NON-OP)
 Source:                                           ICD-9-CM Volumes
 Initialized value:                                N/A
 Value for missing data:                           Blanks
 has data been edited?       Yes     How?          Manually and by computer
                                                   program lXO8XX
 Allowable range of values:                        1 bb, 2 bb, 3 bb, 4 bb
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 Left
 Zero-filled or blank-filled?                      Blank-filled
 Possible values for codes, and equated meaning:

 Code      Meaning
 ----      -------
  1  bb    Requires procedure code, date,
           identity of person performing
           operation
  2  bb    Requires procedure code, date
  3  bb    Requires procedure code, date
  4  bb    Optional
 Data Element: Errata Character for Changes to ICD-9-CM Volumes

                                                           September 8, 1978
                DATA ELEMENT DESCRIPTION DOCUMENTATION FORM
 File Name:                            Abbreviated Codes and Titles
 Record Name:                          Code and Abbreviated Title
 Field Sequence#:                      11 (From Record Description form)
 Data Element Label Name:              ERRATA
 Data Element description:             Errata character for changes to
                                       ICD-9-CM Volumes
 Source:
 Initialized value:                                Blank
 Value for missing data:                           None
 has data been edited?       Yes     How?          Manually
 Allowable range of values:                        "b", "&", ">", "@"
 Validity checks:                                  Manual
 Ratio checks:                                     N/A
 Units of Measure (dollars, persons, codes, etc.): N/A
 Justified left or right in field?                 N/A - one character field
 Zero-filled or blank-filled?                      N/A
 Possible values for codes, and equated meaning:

 Code       Meaning
 ----       -------
   &        Code added since book volumes
            were published
   >        Change to volume
   @        Deletion from volume
 Start Position, Content & Other Information on Data Elements

 1/ A  = Alpha   N = Numeric   C = Computational   Cl = Compl   C2 = Comp2
 AN    = Alphanumeric   PD or C3 = Packed decimal   B = Binary   0 = Octal
 2/    = Computer generated field
 3/ EC = Each character

 Start  Lgth   1/     Standard                 Not     Valid
 Posi-  In     Field  Data       Descrip-     Re-     Con-
 tion   Char.  Type   Name       tion         corded  tents\3
 -----  -----  ----   --------   -----------  ------  ---------------------
  001    06     N     Ln-No       Line Number  None   000001

  007    01     A     Rcd-ID-Char Identifier   None   A (to sort be-
                                  as to rec.           fore sections)

  008    10     A     Filler      (not used)   Space  (to sort before
                                                        codes)

  018    62     AN    File-Name   File Name    None   Left Justified

  080    05     A      Filler     (not used)   Space

  001    6      N      LN-N0      Line Number  None   000002-999999

  007    1      A      SECTION    Tabular Lst  None   D if Disease or O(alpha)
                                  Section ID           if Procedure

  008    1      A      PREFIX     Code Prefix  Space  E for external cause
                                                       otherwise space

  009    5      AN     CODE       ICD-9-CM     None   Char 1=0-9, V if disease
                                  Code                 or space if procedure
                NOTE:There is an implied decimal      Char 2=0-9, Char 3=0-9,
                point between the 3rd & 4th char.-->  Char 4=0-9, space
                of 4 & 5 digit codes                  Char 5=0-9, space

  014    1      AN     SUBDIVIDED Subdivided   Space  "@" (at sign) if sbdvd
                                  Code Ind.            code otherwise space

  015    1      N      RECORD SEQ Record Seq-  None   1 for all abbreviated
                                  uence w/in           titles
                                  code

  016    1      N      CATEGORY   Type of Code None   1 for 3 digit dis. code
                                                       or 2 digit proc. code
                                                      2 for 4 digit dis. code
                                                       or 3 digit proc. code
                                                      3 for 5 digit dis. code
                                                       or 4 digit proc. code

  017    1      A      Sex-Sp-Ind Future Use   Space  F=female, M=male
                                  Sex Specif
                                  Indicator

  018    24     AN     ABR-TITLE  Abbreviated  None   EC= Alphanumeric, 1st
                                  Title                Character=* if illogic
                                                       title from note comb.

  042    1      A      FILLER     Not Used     Space

  043    3      N      GROUP(FTR) ICD-9-CM     Space  001-398, 450-460(ext
                                  List A or B                   cause) for A
                                  Group                        501-742 for B
                                  (Future Use)

  046    1      A      FILLER     Not Used     Space

  047    3      A      CLASS      Procedure    Space  "1bb","2bb","3bb","4bb"
                                  Class(Op or           or Space if disease
                                  Nonop)

  050    30     A      FILLER     Not Used     Space

  080    1      AN     ERRATA     Errata Char  Space  Alphanumeric- & = add
                                  for flagging        > = change, - = delete
                                  changes in
                                  future

  O81    4      A      FILLER     Not Used
ICD-9-CM USAGE INFORMATION
 Introduction to Revised Materials

           December 1979
 ICD-9-CM CODES WITH ABBREVIATED TITLES

 Introduction to Revised Materials

 The International Classification of Diseases, 9th Revision (ICD-9) as
 published by the World Health Organization (WHO) will be used by member
 nations to collect and report mortality and morbidity statistics.  The
 Department of Health, Education and Welfare (DHFW) is responsible for the
 support and use of ICD in the United States.

 While the Ninth Revision of ICD is acceptable for mortality use, it has been
 determined by DHEW that ICD-9 is not sufficiently detailed for the morbidity
 requirements of the health care systems in the United States.  The
 Commission on Professional and Hospital Activities through its affiliated
 division, the Council on Clinical Classification (CCC)*, has prepared a
 clinical modification of ICD-9, the International Classification of
 Diseases, 9th Revision, Clinical Modification (ICD-9-CM).  PHEW has
 determined that ICD-9-CM is satisfactory for use in the United States and
 intends to encourage its use in hospitals and clinical settings; and, where
 applicable and consistent with the law, to require its use by DHEW financed
 activities in order to encourage the use of a single statistical
 classification in the United States that is completely compatible with the
 WHO version (ICD-9).  ICD-9-CM was put into use in the United States during
 1979.

 Through December 1978, two disease classifications were in use in the United
 States, the International Classification of Diseases, 8th Revision, Adapted
 for use in the United States (ICDA-8) published in 1968 by the Public Health
 Service (PHS publication 1693) and the Hospital Adaptation of I6DA, Second
 Edition, (H-ICDA-2), published in 1973 by the Commission on Professional and
 Hospital Activities.  Both ICDA-8 and H-ICDA-2 are based on the
 International Classification of Diseases, 8th Revision, (ICD-8), published
 by WHO in 1968, but they are not entirely compatible with each other.
 Publication and use of ICD-9-CM will solve the problem of separate and
 different disease classifications in the United States.

 *The Council on Clinical Classifications was formed as an affiliated
 division of CPHA in February 1976.  Its sponsors are:  the American
 Academy of Pediatrics, the American College of Obstetricians and
 Gynecologists, the American College of Physicians, the American College of
 Surgeons, the American Psychiatric Association, and the Commission on
 Professional and Hospital Activities.  These medical specialty societies had
 served in an advisory capacity to CPHA since 1971, and formation of
 the Council served to strengthen and formalize that relationship.  More
 importantly, formation of the Council provided a mechanism for broad and
 systematic clinical input to the classification.  Each CCC sponsoring
 organization appointed a Task Force on Classification to work with the CCC
 staff in developing ICD-9-CM and the materials necessary for its
 implementations.

 Recognizing that a new classification requires adjunct materials for its
 successful implementation, the Health Care Financing Administration(HCFA)
 of the Department of Health, Education, and Welfare entered into a contract
 with the Commission on Professional and Hospital activities to produce
 certain of these adjunct materials.

 This contract (HCFA 500-78-0016) covers the development cost of each adjunct
 item defined below and permits their distribution for the minimal cost of
 reproduction and handling.  Each item of adjunct material will be available
 in printed form and on magnetic tape and will be accompanied by instructions
 for use and a full set of documentation for the magnetic tape version.

 The original materials were created during September through December of
 1978.  Actual application and additional testing during 1979 detected errors
 which, when validated, were issued as errata by CPHA and corrected in
 this version of the Adjunct Materials.
 Adjunct Materials

 The following adjunct materials are designed for use with ICD-9-CM:

    1.  ICD-9-CM codes and titles
        Health data systems and others with computer installations need
        listing of the codes and titles in ICD-9-CM.  These are in two forms:
        a.  Codes and full titles for the Tabular Lists:  Volume 1,
            Diseases, and for Volume 3, Procedures.
        b.  Codes and abbreviated titles (maximum of 24 alphabetic character
            descriptions) for both diagnoses and procedures.

        Both of these lists may be used to title computer generated data
        displays and to translate coded information into English.  The
        abbreviated titles are necessary for reports that permit only a
        single (short) line description.

    2.  Editing Aids
        In order to allow for and encourage uniform editing of diagnoses and
        procedure codes and to help standardize data quality control
        procedures, the following editing aids were produced:
        a.  List of sex-specific diagnosis codes
        b.  List of sex-specific procedure codes
        c.  List of diagnosis codes not to be used in classification*
        d.  List of procedure codes not to be used in classification*

        The list of sex-specific codes permit the editing of data to prevent
        the accumulation of such illogical data as male patients with
        obstetric diagnoses or female patients with prostatectomies.

        The list of codes not to be used for classification for both
        diagnoses and procedures consist of:
        a.  those codes that do not appear in ICD-9-CM
        b.  two, three and four digit codes that are further subdivided
        c.  codes that have illogical titles caused by the addition of
            inapplicable fourth or fifth-digits.

        An example of the third class would be placenta previa, post-partum
        complication.

        The above provides a complete list of codes not to be used for

        classification.  Editing can be done to assure that any code on
        these lists is not used since it would be an error.

        Those using a "negative" manner of validating codes should be
        prepared to compare against ten times the number of codes present in
        a codes and titles file.

    3.  Groupings
        Groupings of diagnosis and procedure codes for statistical
        tabulations of short-term hospital inpatients permit statistical
        comparisons of data gathered under ICDA-8 and H-1CDA-2 statistics to
        be expressed in terms of ICD-9-CM.

    4.  Diagnosis Conversion Tables
        Publication of a new disease classification creates a demand to
        translate data from the new classification back to its
        predecessors.  This is necessary to ensure historical linkage with
        existing data bases and to permit analysis of aggregated data over a
        time span that would encompass the use of different
        classifications.  These conversion tables will ensure, to the extent
        possible, that the same kinds of patients are being included in the
        tabulations so that increases or decreases in rates and other
        measures reflect true trends and not merely changes in
        classification.

        There are four conversion tables:
        a.  ICD-9-CM to ICD-9
        b.  ICD-9-CM to H-ICDA-2
        c.  ICD-9-CM to ICDA-8
        d.  ICD-9-CM to H-ICPA-2 and ICDA-8
  *Formerly known as nonexistent codes.
 It should be noted that the conversion tables must be designed to
 convert 1CD-9-6M to its predecessors since ICD-9-6M has the greater
 specificity.  Conversions from the more general to the more specific
 are not possible.

 The adjunct materials are not copyrighted and may be freely
 reproduced and used.  Each item of adjunct material is available in
 hard copy printed form and on magnetic tape.
ICD-9-CM Codes With Abbreviated Titles
 Instructions for Use

 The ICD-9-CM codes with abbreviated titles reproduce the information
 contained in the published Tabular Lists of ICD-9-CM, Volume 1, Diseases,
 and Volume 3, Procedures.

 Health data systems and others with computer installations will find the
 magnetic tape of this information useful for computer generated data
 displays, in which a single (short line) description can be accommodated to
 translate the coded information into English.  For example, use of the
 magnetic tape of codes and abbreviated titles will permit the entry of a
 code (e.g., 800.00) into the computer that will generate the code and
 abbreviated title, 800.0 Closed skull vault fx.

 The individual abbreviated titles contained in this volume represent unique
 identifiers with respect to full nomenclature expressions contained in
 ICD-9-CM, both diseases and procedures.  Abbreviated titles are comprised of
 up to 24 alphabetic characters in the form of shortened words.  It is not
 the purpose of this volume to utilize the present abbreviated words that are
 uniquely or unambiguously defined, but rather to construct abbreviated
 titles that clearly represent full nomenclature expressions.

 A particular shortened word may refer to more than one full nomenclature
 word:
    e.g., gen = general or genital
           def = defect, deficiency, or deformity

 Conversely, one nomenclature word may be referred to by similar shortened
 words containing a variable number of characters:
    e.g., extract, extrac, or extr = extraction
           lac, lacerat, or lacer = laceration

 Thus, individual words should be interpreted      in the context of the
 titles in which they appear.

 The list of ICD-9-CM codes with abbreviated titles is in two parts:
    1.  Diseases
    2.  Procedures.
 Structure of Disease Codes

  Disease codes in ICD-9-CM may be three, four, or five digits in length.  The
  basic structure is three digits, but some are further subdivided by the
  addition of fourth-digits and many of these contain even greater specificity
  by use of fifth digit subclassifications.  The structure of each type of
  code is as follows:
    XXX    (three digit code)
    XXX.X (four digit code)
    XXX.XX (five digit code)

 Each example above represents a valid code length.  All disease codes are
 left justified with trailing spaces for three and four digit codes.  Neither
 fillers nor zeros are added to make all ICD-9-CM disease codes a uniform
 length of five digits.
 Structure of Procedure Codes

 Procedure codes in ICD-9-CM may be three or four digits in length.  The
 basic structure is two digits that are subdivided by the addition of either
 one or two digits.  The structure is as follows:
    XX.X (three digit procedure code)
    XX.XX (four digit procedure code)

 The code length in both the above examples is valid.  Three digit codes are
 left justified with a trailing space.  Neither fillers nor zeros are added
 to three digit codes to make all ICD-9-CM procedure codes a uniform length
 of four digits.
 Abbreviated Title Descriptions

 Each ICD-9-CM code carries a stand alone description in the form of an
 abbreviated title.  In some cases, this means combining part of the title
 from the three digit code with the title from the four digit code to make it
 complete.  For example, the following titles appear in ICD-9-CM:
    580    Acute glomerulonephritis
    580.0  With lesion of proliferative glomerulonephritis
    580.4  With lesion of rapidly progressive glomerulonephritis

 These abbreviated titles are a maximum of 24 characters and print on one
 line.

 In the listing of ICD-9-CM codes with abbreviated titles, the above titles
 appear as follows:
    580.0 Ac proliferat nephritis
    580.4 Ac rapidly progr nephrit
 Use of Footnotes

 Two footnote references are used in the list of ICD-9-CM codes with
 abbreviated titles:
      code is further subdivided
      code is inapplicable

 The symbol @ preceding the disease or procedure code indicates the code is
 further subdivided and as it stands is invalid.  This symbol appears with
 three digit disease codes that have fourth-digit subdivisions and with four
 digit disease codes that have fifth digit subclassifications.  It also
 appears with two digit procedure codes and with three digit procedure codes
 that are further subdivided.  For example:
 Disease Codes

    @580    Acute nephritis
     580.0  Ac proliferat nephritis
     580.4  Ac rapidly progr nephrit

 Code 580 should not be used since more specific code assignments are given.
 Similarly:
    @580.8   AC nephritis w oth les
     580.81  AC nephritis in other dis
     580.89  Acute nephritis NEC

 580.8 is not a valid code because more specific information is available by
 using the applicable fifth-digit subclassification.
 Procedure Codes

     @06    Thyroid/parathyroid ops
     @06.0  Thyroid field incision
      06.01 Thyroid field aspiration
      06.02 Reopen thyroid field wnd
      06.09 Incis thyroid field NEC

 The footnote "code is further subdivided" appears on each page where the
 symbol @ is used.

 The symbol immediately preceding the title of the code in the lists
 denotes an illogical title.  These are the result of sets of fifth digits
 that apply to a series of categories and are most prevalent in the
 obstetrics chapter, Chapter ll, "Complications of Pregnancy, Childbirth, and
 the Puerperium" (ICD-9-CM codes 630-676), and in Chapter l3, "Disorders of
 the Musculoskeletal System and Connective Tissue" (ICD-9-CM codes 710-739).
 For example, the following fifth-digits are used in Chapter Il to denote the
 episode of care:
    0 unspecified as to episode of care
    1 delivered, with or without mention of antepartum condition
    2 delivered, with mention of postpartum complication
    3 antepartum condition or complication
    4 postpartum condition or complication

 Many conditions may occur at any point of gestation:  antepartum,
 intrapartum, or postpartum, but some do not.  For example, placenta previa
 can only occur antepartum.  Therefore, the fifth-digits of 2 or 4
 (delivered, with mention of postpartum complication and postpartum
 complication) would not apply to that category; the symbol preceding the
 title indicates this fact.  Using category 641 as an example:

    @641.1   Hemorr from placent prev
     641.10  Placenta prev hem-unspec
     641.11  Placenta prev hem-deliv
     641.12  *Plac prev hem-deI wp/p
     641.13  Placen prev hem-antepart
     641.14  *Placenta previa hem-p/p

 Note that the asterisk precedes the titles for 641.12 and 641.14 since
 placenta previa is an antepartum or intrapartum condition and cannot occur
 postpartum.  Codes 641.12 and 641.14 are not logical as indicated by the
 symbol *.  A footnote will appear on each page where the symbol is used to
 indicate "* code is inapplicable."
 Procedure Code Classes

 The magnetic tape of ICD-9-CM codes with abbreviated titles also contains
 procedure classes as defined by the Uniform Hospital Discharge Data Set.*
 The class numbers appear to the right of the title as follows:
    01.15  Skull biopsy     1

 The UHDDS reporting requirements for ICD-9-CM procedure codes are as follows:
     Class 1 -Requires ICD-9-CM procedure code, date, and identity of person
              performing procedure.
     Class 2 - Requires ICD-9-CM procedure code and date.
     Class 3 - Requires only ICD-9-CM procedure code.
     Class 4 - Optional, reporting not required.
 Errata Characters

 The original list of ICD-9-CM codes with abbreviated titles contained errata
 characters indicating changes since ICD-9-CM volumes were printed.  Since
 the current list reflects any changes caused by published errata for
 ICD-9-CM volumes and Adjunct Materials, no errata characters are present.
 The errata character location is now reserved for use should any additional
 changes be required.

 UHDD5 Glasses of Procedures, ICD-9-CM, published by the Commission on
 Professional and Hospital Activities, Ann Arbor, Michigan, 1978.
 Adjunct Materials and Codes
 Counts of All ICD-9-CM Codes
                                   Further
 Section             Valid         Subdivided          Illogical      Total
 -------             -----         ----------          ---------      -----
 Disease
    3 digit codes      155            1,024                0           1,179
    4 digit codes    5,628            1,221               19           6,868
    5 digit codes    6,045                0              381           6,426
    Total           11,828            2,245              400          14,473

 Procedure
    2 digit codes        0               98                0              98
    3 digit codes      259              599                0             858
    4 digit codes    3,112                0               18           3,130
    Total            3,371              697               18           4,086

 Both Sections      15,199            2,942              418          18,559
 Counts of Sex-Specific Codes

                                   Further
 Section/Sex         Valid         Subdivided        Illogical        Total
 -----------         -----         ----------        ---------        -----
 Disease
    Female           1,308             345              301           1,954
    Male               121              17                0             138
                     1,429             362              301           2,092

 Procedure
    Female            257               62                0             319
    Male              109               26                0             135
                      366               B8                0             454

 Both Sections
    Female          1,565              407              301           2,273
    Male              230               43                0             273
                    1,795              450              301           2,546
 Diagnosis Conversion Table Counts
 ICD-9-CM codes = 11,828

 Conversion to:     ICD-9-CM codes           Forced        Codes not resulting
                  that don't convert       Conversions       from conversion
                  ------------------       -----------       ---------------
    ICD-9                 0                     0                    0
    ICDA-8              397                  1609                  673
    H-ICDA-2            283                  1853                  879
 ICD-9-CM Adjunct Materials

 December 1979
                 Counts of Disease Codes by Chapter
 CHAPTER      TOTAL COPES       FURTHER SUBDIVIDED       ILLOGICAL      VALID
 -------      -----------       ------------------       ---------      -----
    1            1343                  204                   0          1139
    2             878                  110                   0           768
    3             299                   54                   0           245
    4              83                   12                   0            71
    5             570                  104                   0           466
    6            1409                  243                   0          1166
    7             376                   77                   0           299
    8             218                   40                   0           178
    9             482                  104                   0           378
   10             370                   58                   0           312
   Il            1606                  308                 301           997
   12             172                   29                   0           143
   13            1020                  128                  35           857
   14             438                   67                   0           371
   15             185                   21                   0           164
   16             224                   29                   0           195
   17            2895                  423                  45          2427
 SUBTOTAL       12568                 2011                 381         10176
   V              697                   96                   0           601
 SUBT0TAL       13265                 2107                 381         10777
   E             1208                  138                  19          1051
 TOTAL          14473                 2245                 400         11828




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