Updated research request forms and data security approval requirement effective 4/24/23
The last date that the corresponding occurrence code (variable called OCRNC_CD) or occurrence span code was applicable.
Occurrence codes are associated with specific date(s); refer to the occurrence code start (OCRNC_CD_START_DT) and end dates (OCRNC_CD_END_DT).
SOURCE: T-MSIS Analytic File (TAF) Claims
|Null/missing||source value is missing or unknown|