[
  {
    "phenotype_id": "PH3433",
    "phenotype_version_id": 8472,
    "name": "Glycated haemoglobin (HbA1c) 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\nA SNOMED CT codelist for patients receiving monitoring of glycated haemoglobin (HbA1c) tests.\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": "2026-01-26T23:17:21.549557Z",
    "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": "2026-01-26T23:17:22.609595Z",
    "references": [],
    "signed_off": [],
    "methodology": "2 search strategies:\n1: Use SNOMED codes for existing CTV3 codes in SRO notebooks (using Kahootz CTV3 browser)\n2: Search for \"haemoglobin A1c\" and selecting any codes which related to total HbA1c monitoring and level, excluding any codes for other purposes, including reference ranges. Both the current IFCC mmol/mol and the previous percentage codes are included.\n\n\nWhether codes relating to \"monitoring\" rather than \"level\" need to excluded is still to be determined.\n\n",
    "coding_system": [
      {
        "name": "SNOMED  CT codes",
        "value": 9
      }
    ],
    "open_codelist_id": "opensafely/glycated-haemoglobin-hba1c-tests",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/glycated-haemoglobin-hba1c-tests/2ab11f20",
    "concept_information": [
      {
        "concept_id": 8649,
        "concept_version_id": 16134,
        "concept_name": "opensafely/glycated-haemoglobin-hba1c-tests/2ab11f20",
        "coding_system": {
          "id": 9,
          "name": "SNOMED  CT codes",
          "description": "SNOMED CT codes"
        },
        "phenotype_id": "PH3433",
        "phenotype_version_id": 8472,
        "phenotype_name": "Glycated haemoglobin (HbA1c) tests",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "1003671000000109",
            "description": "Haemoglobin A1c level",
            "attributes": null
          },
          {
            "code": "144176003",
            "description": "Haemoglobin A1c level",
            "attributes": null
          },
          {
            "code": "166902009",
            "description": "Haemoglobin A1c level",
            "attributes": null
          },
          {
            "code": "313835008",
            "description": "Hemoglobin A1c measurement aligned to the Diabetes Control and Complications Trial",
            "attributes": null
          },
          {
            "code": "365845005",
            "description": "Hemoglobin A1C - diabetic control finding",
            "attributes": null
          },
          {
            "code": "371981000000106",
            "description": "Haemoglobin A1c measurement - International Federation of Clinical Chemistry and Laboratory Medicine standardised",
            "attributes": null
          },
          {
            "code": "43396009",
            "description": "Hemoglobin A1c measurement",
            "attributes": null
          },
          {
            "code": "491841000000105",
            "description": "Haemoglobin A1c level",
            "attributes": null
          },
          {
            "code": "567641000000108",
            "description": "Haemoglobin A1C - diabetic control NOS",
            "attributes": null
          },
          {
            "code": "999791000000106",
            "description": "Haemoglobin A1c level - International Federation of Clinical Chemistry and Laboratory Medicine standardised",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "2ab11f20",
    "open_codelist_version_tag": "",
    "status": 1,
    "doi": "https://doi.org/10.48533/9mrq-wg58",
    "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": 8472,
        "version_name": "Glycated haemoglobin (HbA1c) tests",
        "version_date": "2026-01-26T23:17:22.621605Z",
        "is_published": true,
        "is_latest": true
      },
      {
        "version_id": 8471,
        "version_name": "Glycated haemoglobin (HbA1c) tests",
        "version_date": "2026-01-26T23:17:21.561590Z",
        "is_published": true,
        "is_latest": false
      }
    ]
  }
]