[
  {
    "phenotype_id": "PH3804",
    "phenotype_version_id": 8957,
    "name": "Vitamin D level",
    "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 to identify people who have received a blood test to assess vitamin D deficiency status.\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": "2026-01-26T23:35:07.858118Z",
    "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": "2026-01-26T23:35:07.853211Z",
    "references": [
      {
        "url": "https://github.com/opensafely/codelist-development/issues/341",
        "title": "Github discussion"
      }
    ],
    "signed_off": [],
    "methodology": "We searched for the terms \"25\\-OH\", 'vit d' and 'vitamin d' to generate a list of codes to review.\nWe removed codes which were explicitly related to vitamin D2 or vitamin D3 alone, 1,25\\-hydroxyvitamin D or which did not have the 'observable entity' SNOMED CT classification.\n\n",
    "coding_system": [
      {
        "name": "SNOMED  CT codes",
        "value": 9
      }
    ],
    "open_codelist_id": "opensafely/vitamin-d-level",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/vitamin-d-level/1032ad60",
    "concept_information": [
      {
        "concept_id": 9134,
        "concept_version_id": 16619,
        "concept_name": "opensafely/vitamin-d-level/1032ad60",
        "coding_system": {
          "id": 9,
          "name": "SNOMED  CT codes",
          "description": "SNOMED CT codes"
        },
        "phenotype_id": "PH3804",
        "phenotype_version_id": 8957,
        "phenotype_name": "Vitamin D level",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "1007991000000105",
            "description": "Serum total 25-hydroxy vitamin D level",
            "attributes": null
          },
          {
            "code": "1029801000000105",
            "description": "Total 25-hydroxyvitamin D level",
            "attributes": null
          },
          {
            "code": "1031181000000107",
            "description": "Serum vitamin D level",
            "attributes": null
          },
          {
            "code": "1110381000000103",
            "description": "Substance concentration of total 25-hydroxyvitamin D (D2 and D3) in serum",
            "attributes": null
          },
          {
            "code": "5891000237105",
            "description": "Substance concentration of total 25-hydroxy vitamin D in serum",
            "attributes": null
          },
          {
            "code": "996641000000102",
            "description": "Combined total vitamin D2 and D3 level",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "1032ad60",
    "open_codelist_version_tag": "",
    "status": 1,
    "doi": "https://doi.org/10.48533/bagj-z679",
    "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": 8957,
        "version_name": "Vitamin D level",
        "version_date": "2026-01-26T23:35:07.866139Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]