Beneficiary MBI ID

An identifier that uniquely identifies a beneficiary and replaces the Health Insurance Claim Number (HICN) on Medicare cards. The format of the Medicare Beneficiary Identifier (MBI) is 11-positions in length and contains the following values: position 1 numeric values: 1 - 9 position 2 alphabetic values: A - Z (minus S, L, O, I, B, Z position 3 alphanumeric values: 0 - 9 and A - Z (minus S, L, O, I, B, Z) position 4 numeric values: 0 - 9 position 5 alphabetic values: A - Z (minus S, L, O, I, B, Z) position 6 alphanumeric values: 0 - 9 and a - z (minus S, L, O, I, B, Z) position 7 numeric values: 0 - 9 position 8 alphabetic values: A - Z (minus S, L, O, I, B, Z) position 9 alphabetic values: A - Z (minus S, L, O, I, B, Z) position 10 numeric values: 0 - 9 position 11 numeric values: 0 - 9

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