HL7 v2.5.1 Vocabulary
0.1.0 - ci-build

HL7 v2.5.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v251/ and changes regularly. See the Directory of published versions

## : Coding System (2.5.1 - 1.2.0) - JSON Representation

Active as of 2026-01-27

Raw json | Download

    {
      "resourceType" : "CodeSystem",
      "id" : "codingSystem",
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><ul><li>Include all codes defined in <a href=\"CodeSystem-codingSystem.html\"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/codingSystem</code></a></li></ul></div>"
      },
      "extension" : [
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
          "valueString" : "2.5.1"
        },
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
          "valueString" : "generate correct history somehow"
        },
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
          "valueString" : "0396"
        }
      ],
      "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/codingSystem",
      "identifier" : [
        {
          "system" : "urn:ietf:rfc:3986",
          "value" : "urn:oid:2.16.840.1.113883.18.247"
        }
      ],
      "version" : "1.2.0",
      "name" : "CodingSystem",
      "title" : "Coding System (2.5.1 - 1.2.0)",
      "status" : "active",
      "experimental" : true,
      "date" : "2026-01-27T19:29:18+00:00",
      "publisher" : "HL7/FO",
      "contact" : [
        {
          "name" : "HL7/FO",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.hl7.org"
            }
          ]
        }
      ],
      "description" : "HL7-defined code system of concepts specifying the coding system.  This table is maintained outside of the published Version 2 standards, and may be found at http://www.hl7.org/Special/committees/vocab/table_0396/index.cfm.  Used in HL7 Version 2.x messaging in the CWE segment.",
      "copyright" : "HL7 Inc., 2026",
      "caseSensitive" : true,
      "compositional" : false,
      "content" : "complete",
      "property" : [
        {
          "code" : "versionIntroduced",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced",
          "description" : "version when was this code introduced",
          "type" : "string"
        },
        {
          "code" : "versionDeprecated",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated",
          "description" : "version when was this code deprecated",
          "type" : "string"
        },
        {
          "code" : "status",
          "uri" : "http://hl7.org/fhir/concept-properties#status",
          "description" : "A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired",
          "type" : "code"
        },
        {
          "code" : "comment",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment",
          "description" : "A string that provides additional detail pertinent to the use or understanding of the concept",
          "type" : "string"
        },
        {
          "code" : "usage",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage",
          "description" : "usage notes for this code",
          "type" : "string"
        },
        {
          "code" : "modified",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified",
          "description" : "date of last modification",
          "type" : "dateTime"
        },
        {
          "code" : "category",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#category",
          "description" : "category",
          "type" : "string"
        },
        {
          "code" : "country",
          "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#country",
          "description" : "country",
          "type" : "string"
        }
      ],
      "concept" : [
        {
          "code" : "99zzz",
          "display" : "Local general code where z is an alphanumeric character",
          "definition" : "Local general code where z is an alphanumeric character",
          "property" : [
            {
              "code" : "usage",
              "valueString" : "Locally defined codes for purpose of sender or receiver - 99zzz (where z is an alphanumeric character)."
            },
            {
              "code" : "modified",
              "valueDateTime" : "2024-08-09"
            },
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ACR",
          "display" : "American College of Radiology finding codes",
          "definition" : "American College of Radiology finding codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ANS+",
          "display" : "HL7 set of units of measure",
          "definition" : "HL7 set of units of measure",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "ART",
          "display" : "WHO Adverse Reaction Terms",
          "definition" : "WHO Adverse Reaction Terms",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "AS4",
          "display" : "ASTM E1238/ E1467 Universal",
          "definition" : "ASTM E1238/ E1467 Universal",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "AS4E",
          "display" : "AS4 Neurophysiology Codes",
          "definition" : "AS4 Neurophysiology Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ATC",
          "display" : "American Type Culture Collection",
          "definition" : "American Type Culture Collection",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "C4",
          "display" : "CPT-4",
          "definition" : "CPT-4",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "C5",
          "display" : "CPT-5",
          "definition" : "CPT-5",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CAS",
          "display" : "Chemical abstract codes",
          "definition" : "Chemical abstract codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CD2",
          "display" : "CDT-2 Codes",
          "definition" : "CDT-2 Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CDCA",
          "display" : "CDC Analyte Codes",
          "definition" : "CDC Analyte Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            },
            {
              "code" : "country",
              "valueString" : "US"
            }
          ]
        },
        {
          "code" : "CDCM",
          "display" : "CDC Methods/Instruments Codes",
          "definition" : "CDC Methods/Instruments Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            },
            {
              "code" : "country",
              "valueString" : "US"
            }
          ]
        },
        {
          "code" : "CDS",
          "display" : "CDC Surveillance",
          "definition" : "CDC Surveillance",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CE",
          "display" : "CEN ECG diagnostic codes",
          "definition" : "CEN ECG diagnostic codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CLP",
          "display" : "CLIP",
          "definition" : "CLIP",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CPTM",
          "display" : "CPT Modifier Code",
          "definition" : "CPT Modifier Code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CST",
          "display" : "COSTART",
          "definition" : "COSTART",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "CVX",
          "display" : "CDC Vaccine Codes",
          "definition" : "CDC Vaccine Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "DCL",
          "display" : "DICOM Class Label",
          "definition" : "DICOM Class Label",
          "property" : [
            {
              "code" : "status",
              "valueCode" : "inactive"
            },
            {
              "code" : "modified",
              "valueDateTime" : "2024-08-09"
            },
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "DCM",
          "display" : "DICOM Controlled Terminology",
          "definition" : "DICOM Controlled Terminology",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "DQL",
          "display" : "DICOM Query Label",
          "definition" : "DICOM Query Label",
          "property" : [
            {
              "code" : "status",
              "valueCode" : "inactive"
            },
            {
              "code" : "modified",
              "valueDateTime" : "2024-08-09"
            },
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "E",
          "display" : "EUCLIDES",
          "definition" : "EUCLIDES",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "E5",
          "display" : "Euclides  quantity codes",
          "definition" : "Euclides  quantity codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "E6",
          "display" : "Euclides Lab method codes",
          "definition" : "Euclides Lab method codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "E7",
          "display" : "Euclides Lab equipment codes",
          "definition" : "Euclides Lab equipment codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ENZC",
          "display" : "Enzyme Codes",
          "definition" : "Enzyme Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "FDDC",
          "display" : "First DataBank Drug Codes",
          "definition" : "First DataBank Drug Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "FDDX",
          "display" : "First DataBank Diagnostic Codes",
          "definition" : "First DataBank Diagnostic Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "FDK",
          "display" : "FDA K10",
          "definition" : "FDA K10",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HB",
          "display" : "HIBCC",
          "definition" : "HIBCC",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HCPCS",
          "display" : "CMS (formerly HCFA)  Common Procedure Coding System",
          "definition" : "CMS (formerly HCFA)  Common Procedure Coding System",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HCPT",
          "display" : "Health Care Provider Taxonomy",
          "definition" : "Health Care Provider Taxonomy",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "HHC",
          "display" : "Home Health Care",
          "definition" : "Home Health Care",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HI",
          "display" : "Health Outcomes",
          "definition" : "Health Outcomes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HL7nnnn",
          "display" : "HL7 Defined Codes where nnnn is the HL7 table number",
          "definition" : "HL7 Defined Codes where nnnn is the HL7 table number",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "HOT",
          "display" : "Japanese Nationwide Medicine Code",
          "definition" : "Japanese Nationwide Medicine Code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "HPC",
          "display" : "CMS (formerly HCFA )Procedure Codes (HCPCS)",
          "definition" : "CMS (formerly HCFA )Procedure Codes (HCPCS)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "I10",
          "display" : "ICD-10",
          "definition" : "ICD-10",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "I10P",
          "display" : "ICD-10  Procedure Codes",
          "definition" : "ICD-10  Procedure Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "I9",
          "display" : "ICD9",
          "definition" : "ICD9",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "I9C",
          "display" : "ICD-9CM",
          "definition" : "ICD-9CM",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "IBT",
          "display" : "ISBT",
          "definition" : "ISBT",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "IBTnnnn",
          "display" : "ISBT 128 codes where nnnn  specifies a specific table within ISBT 128.",
          "definition" : "ISBT 128 codes where nnnn  specifies a specific table within ISBT 128.",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "IC2",
          "display" : "ICHPPC-2",
          "definition" : "ICHPPC-2",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ICD10AM",
          "display" : "ICD-10 Australian modification",
          "definition" : "ICD-10 Australian modification",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "ICD10CA",
          "display" : "ICD-10 Canada",
          "definition" : "ICD-10 Canada",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "ICDO",
          "display" : "International Classification of Diseases for Oncology",
          "definition" : "International Classification of Diseases for Oncology",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ICS",
          "display" : "ICCS",
          "definition" : "ICCS",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ICSD",
          "display" : "International Classification of Sleep Disorders",
          "definition" : "International Classification of Sleep Disorders",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "ISO",
          "display" : "ISO 2955.83 (units of measure) with HL7 extensions",
          "definition" : "ISO 2955.83 (units of measure) with HL7 extensions",
          "property" : [
            {
              "code" : "modified",
              "valueDateTime" : "2024-08-10"
            },
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "ISOnnnn",
          "display" : "ISO Defined Codes where nnnn is the ISO table number",
          "definition" : "ISO Defined Codes where nnnn is the ISO table number",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "IUPC",
          "display" : "IUPAC/IFCC Component Codes",
          "definition" : "IUPAC/IFCC Component Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "IUPP",
          "display" : "IUPAC/IFCC Property Codes",
          "definition" : "IUPAC/IFCC Property Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "JC10",
          "display" : "JLAC/JSLM, nationwide laboratory code",
          "definition" : "JLAC/JSLM, nationwide laboratory code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "JC8",
          "display" : "Japanese Chemistry",
          "definition" : "Japanese Chemistry",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "JJ1017",
          "display" : "Japanese Image Examination Cache",
          "definition" : "Japanese Image Examination Cache",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "L",
          "display" : "Local general code",
          "definition" : "Local general code",
          "property" : [
            {
              "code" : "usage",
              "valueString" : "Locally defined codes for purpose of sender or receiver. Local codes can be identified by L (for backward compatibility)"
            },
            {
              "code" : "modified",
              "valueDateTime" : "2024-08-09"
            },
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "LB",
          "display" : "Local billing code",
          "definition" : "Local billing code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "LN",
          "display" : "Logical Observation Identifier Names and Codes (LOINCÂ®)",
          "definition" : "Logical Observation Identifier Names and Codes (LOINCÂ®)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MCD",
          "display" : "Medicaid",
          "definition" : "Medicaid",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MCR",
          "display" : "Medicare",
          "definition" : "Medicare",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MDDX",
          "display" : "Medispan Diagnostic Codes",
          "definition" : "Medispan Diagnostic Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MEDC",
          "display" : "Medical Economics Drug Codes",
          "definition" : "Medical Economics Drug Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MEDR",
          "display" : "Medical Dictionary for Drug Regulatory Affairs (MEDDRA)",
          "definition" : "Medical Dictionary for Drug Regulatory Affairs (MEDDRA)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MEDX",
          "display" : "Medical Economics Diagnostic Codes",
          "definition" : "Medical Economics Diagnostic Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MGPI",
          "display" : "Medispan GPI",
          "definition" : "Medispan GPI",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "MVX",
          "display" : "CDC Vaccine Manufacturer Codes",
          "definition" : "CDC Vaccine Manufacturer Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "NDA",
          "display" : "NANDA",
          "definition" : "NANDA",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "NDC",
          "display" : "National drug codes",
          "definition" : "National drug codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "NIC",
          "display" : "Nursing Interventions Classification",
          "definition" : "Nursing Interventions Classification",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "NPI",
          "display" : "National Provider Identifier",
          "definition" : "National Provider Identifier",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "NUBC",
          "display" : "National Uniform Billing Committee Code",
          "definition" : "National Uniform Billing Committee Code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "OHA",
          "display" : "Omaha System",
          "definition" : "Omaha System",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "POS",
          "display" : "POS Codes",
          "definition" : "POS Codes",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "RC",
          "display" : "Read Classification",
          "definition" : "Read Classification",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "SDM",
          "display" : "SNOMED- DICOM Microglossary",
          "definition" : "SNOMED- DICOM Microglossary",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "SNM",
          "display" : "Systemized Nomenclature of Medicine (SNOMED)",
          "definition" : "Systemized Nomenclature of Medicine (SNOMED)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "SNM3",
          "display" : "SNOMED International",
          "definition" : "SNOMED International",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "SNT",
          "display" : "SNOMED topology codes (anatomic sites)",
          "definition" : "SNOMED topology codes (anatomic sites)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "UC",
          "display" : "UCDS",
          "definition" : "UCDS",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "UMD",
          "display" : "MDNS",
          "definition" : "MDNS",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "UML",
          "display" : "Unified Medical Language",
          "definition" : "Unified Medical Language",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "UPC",
          "display" : "Universal Product Code",
          "definition" : "Universal Product Code",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "UPIN",
          "display" : "UPIN",
          "definition" : "UPIN",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "USPS",
          "display" : "United States Postal Service",
          "definition" : "United States Postal Service",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.5"
            }
          ]
        },
        {
          "code" : "W1",
          "display" : "WHO record # drug codes (6 digit)",
          "definition" : "WHO record # drug codes (6 digit)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "W2",
          "display" : "WHO record # drug codes (8 digit)",
          "definition" : "WHO record # drug codes (8 digit)",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "W4",
          "display" : "WHO record # code with ASTM extension",
          "definition" : "WHO record # code with ASTM extension",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        },
        {
          "code" : "WC",
          "display" : "WHO ATC",
          "definition" : "WHO ATC",
          "property" : [
            {
              "code" : "versionIntroduced",
              "valueString" : "2.4"
            }
          ]
        }
      ]
    }