| Code | Description |
|---|---|
| MI | Member Identification Number. -- This code may only be used prior to the mandated use of code “ZZ.” This is the unique number the payer or information source uses to identify the insured ( e.g., Health Insurance Claim Number, Medicaid Recipient ID Number, HMO Member ID, etc. ). |
| ZZ | Mutually Defined -- The value “ZZ”, when used in this data element shall be defined as “HIPAA Individual Identifier” once this identifier has been adopted. Under the Health Insurance Portability and Accountability Act of 1996, the Secretary of the Department of Health and Human Services must adopt a standard individual identifier for use in this transaction. |