US Medicare Health Insurance Claim Number (HICN)

ID us_hicn

DatatypePersonal data (PII)identifierDraft

This record is a draft: it has not been reviewed yet and may be incomplete or wrong. Do not rely on it for compliance decisions. Help improve it (see CONTRIBUTING.md).

Former Medicare number of a beneficiary in the United States: the nine-digit Social Security number of the wage earner on whose record the person is entitled, followed by a one- or two-character beneficiary identification code such as A for the wage earner. Railroad Retirement Board beneficiaries had a differently built number. Medicare cards switched to the Medicare Beneficiary Identifier (us_mbi) from 2018, but the HICN remains in older claims and administrative files.

Categories: Personally identifiable information, Person related, Medical/pharma identifiers
Countries: United States
Languages: English
W3C DPV: pd:OfficialID
HL7 FHIR identifier system: http://hl7.org/fhir/sid/us-medicare
Quality: 95/100 · missing: translation
Metacrafter rules: no detection rule yet
Supported by tools: Amazon Macie, AWS Glue Sensitive Data Detection, IBM Knowledge Catalog (IBM watsonx.data intelligence), Nightfall AI

Regular expression

^\d{9}[0-9A-Z]{1,2}$

Python re syntax.

Examples

Value	Description
987654320A	Constructed from 987-65-4320, a number that SSA reserves for advertising
00012345616	Pseudo HICN example from the CMS code descriptions
1EG4TE5MK73 invalid	An MBI, not a HICN

Sources

Use this record

Page URL: http://registry.apicrafter.io/datatype/us_hicn
JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
Improve it: edit data/datatypes/US/persons/us_hicn.yaml on GitHub