[
  {
    "phenotype_id": "PH2611",
    "phenotype_version_id": 6437,
    "name": "Gamma-glutamyl transferase test results codes (obsolete)",
    "definition": "This codelist was taken from [OpenCodelists](https://www.opencodelists.org/), created by [OpenSAFELY](https://www.opensafely.org/). We recommend viewing this Phenotype on the OpenCodelist website to view the most recent version.\n\n\nTaken from the `GGT_COD` refset published by NHSD.\n\n\n© University of Oxford for the Bennett Institute for Applied Data Science 2025\\. This work may be copied freely for non\\-commercial research and study.\n\n",
    "implementation": null,
    "publications": null,
    "validation": null,
    "citation_requirements": null,
    "created": "2026-01-26T22:28:09.374512Z",
    "author": "NHSD Primary Care Domain Refsets",
    "collections": [
      {
        "name": "OpenCodelist",
        "value": 31
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": {
      "id": 1,
      "slug": "opensafely",
      "name": "OpenSAFELY"
    },
    "world_access": 1,
    "updated": "2026-01-26T22:28:09.369472Z",
    "references": [],
    "signed_off": [],
    "methodology": "",
    "coding_system": [
      {
        "name": "SNOMED  CT codes",
        "value": 9
      }
    ],
    "open_codelist_id": "nhsd-primary-care-domain-refsets/gamma-glutamyl-transferase-test-results-codes",
    "source_reference": "https://www.opencodelists.org/codelist/nhsd-primary-care-domain-refsets/gamma-glutamyl-transferase-test-results-codes/20241205",
    "concept_information": [
      {
        "concept_id": 6614,
        "concept_version_id": 14099,
        "concept_name": "nhsd-primary-care-domain-refsets/gamma-glutamyl-transferase-test-results-codes/20241205",
        "coding_system": {
          "id": 9,
          "name": "SNOMED  CT codes",
          "description": "SNOMED CT codes"
        },
        "phenotype_id": "PH2611",
        "phenotype_version_id": 6437,
        "phenotype_name": "Gamma-glutamyl transferase test results codes (obsolete)",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "1000851000000108",
            "description": "Plasma gamma-glutamyl transferase level",
            "attributes": null
          },
          {
            "code": "1000861000000106",
            "description": "Serum gamma-glutamyl transferase level",
            "attributes": null
          },
          {
            "code": "1028091000000102",
            "description": "Gamma-glutamyl transferase level",
            "attributes": null
          },
          {
            "code": "1107431000000107",
            "description": "Enzyme activity of gamma-glutamyl transferase in plasma",
            "attributes": null
          },
          {
            "code": "1107441000000103",
            "description": "Enzyme activity of gamma-glutamyl transferase in serum",
            "attributes": null
          },
          {
            "code": "1551000237100",
            "description": "Catalytic activity of gamma-glutamyl transferase in serum",
            "attributes": null
          },
          {
            "code": "54641000237105",
            "description": "Arbitrary concentration of gamma-glutamyltransferase in plasma",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "70c76e57",
    "open_codelist_version_tag": "20241205",
    "status": 1,
    "doi": "https://doi.org/10.48533/v1jw-5660",
    "is_deleted": false,
    "publish_status": 2,
    "owner": "ieuan.scanlon",
    "template": {
      "id": 3,
      "name": "OpenCodelists Phenotype",
      "description": "OpenSafely's OpenCodelist Phenotype, visit https://www.opencodelists.org/ to learn more",
      "version_id": 1
    },
    "versions": [
      {
        "version_id": 6437,
        "version_name": "Gamma-glutamyl transferase test results codes (obsolete)",
        "version_date": "2026-01-26T22:28:09.383275Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]