Scientific Data DocumentationInternational Classification Of Diseases - 9, Abbreviated TitlesDSN: 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 48105DOCUMENTATION FORMSFile 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: CPHARecord 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 ACode 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 AData 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 RecordData 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/ACode 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/AData 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 RecordData 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 subdividedData 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 codeData 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 codeData 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/AData 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 OptionalData 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 volumeStart 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 UsedICD-9-CM USAGE INFORMATIONIntroduction 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 TitlesInstructions 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 nephritUse 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 CodesCounts 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 18,559Counts 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 2,546Diagnosis 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 879ICD-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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