Diagnosis Version Code 1 (ICD-9 or ICD-10)

SAS Name

This variable identifies the coding system (ICD-9 or ICD-10) used for the Diagnosis Codes 1 through 12 (DGNS_CD_1-12 fields).


If the discharge date is prior to October 1, 2015, the diagnosis code flag (and corresponding diagnosis code) should be ICD-9.  Beginning October 1, 2015, the diagnosis code/flag should be ICD-10.

SOURCE: T-MSIS Analytic File (TAF) Claims

Code Code value
1 ICD-9
2 ICD-10
3 Other/invalid code
Null/missing source value is missing, unknown, or not on the valid value list or within the range of valid values