HL7 2.5.1 - Identifier Type Codeset - HL7 0203

# HL7 Version CodeValue Description
 1 2.5.1 AN Account number
 2 2.5.1 ANON Anonymous identifier
 3 2.5.1 BR Birth registry number
 4 2.5.1 DL Driver’s license number
 5 2.5.1 DN Doctor number
 6 2.5.1 EI Employee number
 7 2.5.1 EN Employer number
 8 2.5.1 FI Facility ID
 9 2.5.1 GI Guarantor internal identifier
 10 2.5.1 GN Guarantor external identifier
 11 2.5.1 LN License number
 12 2.5.1 LR Local Registry ID
 13 2.5.1 MA Patient Medicaid number
 14 2.5.1 MC Patient's Medicare number
 15 2.5.1 MR Medical record number
 16 2.5.1 MRT Temporary Medical Record Number
 17 2.5.1 NH National Health Plan Identifier
 18 2.5.1 NI National unique individual identifier
 19 2.5.1 NPI National provider identifier
 20 2.5.1 PI Patient internal identifier
 21 2.5.1 PN Person number
 22 2.5.1 PRN Provider number
 23 2.5.1 PT Patient external identifier
 24 2.5.1 RR Railroad Retirement number
 25 2.5.1 RRI Regional registry ID
 26 2.5.1 SL State license
 27 2.5.1 SN Subscriber Number
 28 2.5.1 SR State registry ID
 29 2.5.1 SS Social Security number
 30 2.5.1 U Unspecified identifier
 31 2.5.1 UPIN Medicare/CMS (formerly HCFA)s Universal Physician Identification numbers
 32 2.5.1 VEI Vaccinator Employee Number
 33 2.5.1 VN Visit number
 34 2.5.1 WC WIC identifier
 35 2.5.1 XX Organization identifier