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TMSIS Dataguide Medicaid.gov
Version 3.27.0

MEDICARE-HIC-NUM

Data Element

DE Number

ELG050

System DE Number

ELG.003.050

File Name

ELG - ELIGIBLE

File Segment Number

ELG00003

Last updated

No Updates

Definition The Medicare HIC Number (HICN) is an identifier formerly used by SSA and CMS to identify all Medicare beneficiaries. For many beneficiaries, their SSN was a major component of their HICN. To prevent identify theft, among other reasons, HICN gradually were retired and replaced by the Medicare Beneficiary Identifier (MBI) over the course of 2018 and 2019. HICN continue to be used by Medicare for limited administrative purposes after 2019 but starting in 2020 the MBI became the primary identifier for Medicare beneficiaries. HICN consists of two components: SSN & alpha-suffix or (for Railroad IDs) prefix and ID (not always SSN based)
Size X(12)
FLF Start Position 126
FLF Stop Position 137
Segment Key Field Identifier Not Applicable
Coding Requirements 1. Conditional
2. Value must be 12 characters or less
3. Value must not contain a pipe or asterisk symbols
4. (Not Dual Eligible) if Dual Eligible Code (ELG.DE.085) value = "00", then value must not be populated.
5. (Medicare Enrolled) if associated Dual Eligible Code (ELG.005.085) value is in [ "01", "02", "03", "04", "05", "06", "08", "09", or "10" ], then value for either HICN or MBI is mandatory and must be provided
Valid Value Code Set Valid Value Code Valid Value Name Valid Value Description Effective Start Date Effective End Date
DE Number System DE Number DE Name File Segment Number File Segment Name
CIP196 CIP.002.196 MEDICARE-HIC-NUM CIP00002 CLAIM-HEADER-RECORD-IP
CLT140 CLT.002.140 MEDICARE-HIC-NUM CLT00002 CLAIM-HEADER-RECORD-LT
COT122 COT.002.122 MEDICARE-HIC-NUM COT00002 CLAIM-HEADER-RECORD-OT
CRX079 CRX.002.079 MEDICARE-HIC-NUM CRX00002 CLAIM-HEADER-RECORD-RX