[
  {
    "phenotype_id": "PH3265",
    "phenotype_version_id": 8255,
    "name": "Alanine aminotransferase (ALT) tests",
    "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\nThis codelist was developed to identify patients receiving a alanine transferaminase test, as an indicator of a liver function test.\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": "2026-01-26T23:08:29.429655Z",
    "author": "OpenSAFELY",
    "collections": [
      {
        "name": "OpenCodelist",
        "value": 31
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": {
      "id": 1,
      "slug": "opensafely",
      "name": "OpenSAFELY"
    },
    "world_access": 1,
    "updated": "2026-01-26T23:08:30.534928Z",
    "references": [],
    "signed_off": [],
    "methodology": "We searched SNOMED CT for \"alanine aminotransferase\" and selected all codes with reference to the test measurement or level.\n\n\nOriginal signoff \\[2298df3e] by Richard Croker and Brian Mackenna (April 2021\\)\nUpdated version \\[11d2e678] by Richard Croker and Andrew Brown (Feb 2025\\)\n\n",
    "coding_system": [
      {
        "name": "SNOMED  CT codes",
        "value": 9
      }
    ],
    "open_codelist_id": "opensafely/alanine-aminotransferase-alt-tests",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/alanine-aminotransferase-alt-tests/11d2e678",
    "concept_information": [
      {
        "concept_id": 8432,
        "concept_version_id": 15917,
        "concept_name": "opensafely/alanine-aminotransferase-alt-tests/11d2e678",
        "coding_system": {
          "id": 9,
          "name": "SNOMED  CT codes",
          "description": "SNOMED CT codes"
        },
        "phenotype_id": "PH3265",
        "phenotype_version_id": 8255,
        "phenotype_name": "Alanine aminotransferase (ALT) tests",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "1013211000000103",
            "description": "Plasma alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "1018251000000107",
            "description": "Serum alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "104481004",
            "description": "Alanine aminotransferase measurement, method with pyridoxal-5'-phosphate",
            "attributes": null
          },
          {
            "code": "104482006",
            "description": "Alanine aminotransferase measurement, method without pyridoxal-5'-phosphate",
            "attributes": null
          },
          {
            "code": "201321000000108",
            "description": "Serum alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "219651000000107",
            "description": "Serum alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "219661000000105",
            "description": "Serum alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "250637003",
            "description": "Alanine aminotransferase - blood measurement",
            "attributes": null
          },
          {
            "code": "34608000",
            "description": "Alanine aminotransferase measurement",
            "attributes": null
          },
          {
            "code": "389586005",
            "description": "Plasma alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "390318006",
            "description": "Plasma alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "390961000",
            "description": "Plasma alanine aminotransferase level",
            "attributes": null
          },
          {
            "code": "889391000000100",
            "description": "Measurement of alanine transaminase activity",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "11d2e678",
    "open_codelist_version_tag": "",
    "status": 1,
    "doi": "https://doi.org/10.48533/0eyr-my30",
    "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": 8255,
        "version_name": "Alanine aminotransferase (ALT) tests",
        "version_date": "2026-01-26T23:08:30.546950Z",
        "is_published": true,
        "is_latest": true
      },
      {
        "version_id": 8254,
        "version_name": "Alanine aminotransferase (ALT) tests",
        "version_date": "2026-01-26T23:08:29.438317Z",
        "is_published": true,
        "is_latest": false
      }
    ]
  }
]