The state-assigned number which uniquely identifies the Medicaid case to which the enrollee belongs; most recent in the calendar and all prior years.
The definition of a case varies. There are single-person cases (mostly aged and blind/disabled) and multi-person cases (mostly TANF) in which all members of the case have the same case number, but a unique MSIS identification number. A warning for longitudinal research efforts: a person’s case number may change over time.
Although states assign a case number that may be up to 12 digits, this value is encrypted in the CCW.
SOURCE: T-MSIS Annual Demographic and Eligibility TAF
|Null/missing||source value is missing or unknown|