[
  {
    "phenotype_id": "PH3798",
    "phenotype_version_id": 8951,
    "name": "Venous thromboembolism (current) by type - secondary care and mortality data",
    "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\nICD\\-10 codelist for any history of venous thromboembolism.\n\n\nThis differs from the [existing OpenSAFELY codelist incident VTE](https://codelists.opensafely.org/codelist/opensafely/incident-venous-thromboembolic-disease/2020-09-30/) by including codes that specify the event occured during pregnancy or post partum, and post thrombotic syndrome, and by further clarifying type (site) of VTE.\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": "2026-01-26T23:35:00.223016Z",
    "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": "2026-01-26T23:35:00.217709Z",
    "references": [
      {
        "url": "https://bmjopen.bmj.com/content/bmjopen/suppl/2015/11/11/bmjopen-2015-008864.DC1/bmjopen-2015-008864supp_tables.pdf",
        "title": "Abdul Sultan A, West J, Stephansson O, et al Defining venous thromboembolism and measuring its incidence using Swedish health registries: a nationwide pregnancy cohort studyBMJ Open 2015;5:e008864. doi: 10.1136/bmjopen-2015-008864"
      }
    ],
    "signed_off": [],
    "methodology": "Aim\n\n\nCodelist to identify people with a history of VTE (in any context including while pregnant).\n\n\nSearch\n\n\n(1\\) Identified existing ICD\\-10 codelists in the OpenSAFELY database for VTE\n(a) https://codelists.opensafely.org/codelist/opensafely/venous\\-thromboembolism\\-icd\\-10/6e25de26/\\#full\\-list\n(b) https://codelists.opensafely.org/codelist/opensafely/venous\\-thromboembolic\\-disease\\-hospital/2020\\-10\\-01/\\#full\\-list\nThe second (b) includes all codes in (a) and additionally codes for VTE in unspecified sites, which we'd want to include here.\nNeither includes any codes relating to pregnancy or postpartum, which we would want to include for a full capture of 'a history of VTE'\n(c) There's also a codelist specifically for cerebral venous thrombosis which includes CVT from all causes (inc pregnancy, post partum and in the context of sepsis https://codelists.opensafely.org/codelist/opensafely/cerebral\\-venous\\-thrombosis\\-secondary\\-care\\-or\\-mortality/43b72958/ and has been discussed with MHRA and PHE\n\n\n(2\\) Searched for existing validated codelists and found list by Sultan et al (reference below). \n\n\n(3\\) New search in WHO browser (2019 version) to check for any further codes to consider.\n\n\nApproach:\n\n\nBased codelist on validated codelist by Sultan et al, with additions of \n\\- cerebral venous thrombosis codes\n\\- post thrombotic syndrome (since we are interested in a history of VTE not incidence) \n\\- events specified as in pregnancy or postpartum. \n\\- 3\\-character codes I80, I81 and I26 as all subtypes relevant (other than I800 for superficial thrombosis nested below I80\\)\n\n\nCategorised by site aiming for as much consistency as possible with CTV3 codelist https://codelists.opensafely.org/codelist/opensafely/vte\\-classified\\-codes/08b94f7d/\n\n\nDiscussion on Github\nhttps://github.com/opensafely/codelist\\-development/issues/92\n\n",
    "coding_system": [
      {
        "name": "ICD10 codes",
        "value": 4
      }
    ],
    "open_codelist_id": "opensafely/venous-thromboembolism-current-by-type-secondary-care-and-mortality-data",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/venous-thromboembolism-current-by-type-secondary-care-and-mortality-data/4402fca7",
    "concept_information": [
      {
        "concept_id": 9128,
        "concept_version_id": 16613,
        "concept_name": "opensafely/venous-thromboembolism-current-by-type-secondary-care-and-mortality-data/4402fca7",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH3798",
        "phenotype_version_id": 8951,
        "phenotype_name": "Venous thromboembolism (current) by type - secondary care and mortality data",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "G08",
            "description": "Intracranial and intraspinal phlebitis and thrombophlebitis",
            "attributes": {
              "type": "cvt"
            }
          },
          {
            "code": "I26",
            "description": "Pulmonary embolism",
            "attributes": {
              "type": "pe"
            }
          },
          {
            "code": "I260",
            "description": "Pulmonary embolism with mention of acute cor pulmonale",
            "attributes": {
              "type": "pe"
            }
          },
          {
            "code": "I269",
            "description": "Pulmonary embolism without mention of acute cor pulmonale",
            "attributes": {
              "type": "pe"
            }
          },
          {
            "code": "I636",
            "description": "Cerebral infarction due to cerebral venous thrombosis, nonpyogenic",
            "attributes": {
              "type": "cvt"
            }
          },
          {
            "code": "I676",
            "description": "Nonpyogenic thrombosis of intracranial venous system",
            "attributes": {
              "type": "cvt"
            }
          },
          {
            "code": "I80",
            "description": "Phlebitis and thrombophlebitis",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "I801",
            "description": "Phlebitis and thrombophlebitis of femoral vein",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "I802",
            "description": "Phlebitis and thrombophlebitis of other deep vessels of lower extremities",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "I803",
            "description": "Phlebitis and thrombophlebitis of lower extremities, unspecific",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "I808",
            "description": "Phlebitis and thrombophlebitis of other sites",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "I809",
            "description": "Phlebitis and thrombophlebitis of unspecified site",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "I81",
            "description": "Portal vein thrombosis",
            "attributes": {
              "type": "portal"
            }
          },
          {
            "code": "I82",
            "description": "Other venous embolism and thrombosis",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "I820",
            "description": "Budd-Chiari syndrome",
            "attributes": {
              "type": "hepatic"
            }
          },
          {
            "code": "I821",
            "description": "Thrombophlebitis migrans",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "I822",
            "description": "Embolism and thrombosis of vena cava",
            "attributes": {
              "type": "vc"
            }
          },
          {
            "code": "I823",
            "description": "Embolism and thrombosis of renal vein",
            "attributes": {
              "type": "renal"
            }
          },
          {
            "code": "I828",
            "description": "Embolism and thrombosis of other specified veins",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "I829",
            "description": "Embolism and thrombosis of unspecified vein",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "O082",
            "description": "Embolism following abortion and ectopic and molar pregnancy",
            "attributes": {
              "type": "pe"
            }
          },
          {
            "code": "O223",
            "description": "Deep phlebothrombosis in pregnancy",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "O225",
            "description": "Cerebral venous thrombosis in pregnancy",
            "attributes": {
              "type": "cvt"
            }
          },
          {
            "code": "O871",
            "description": "Deep phlebothrombosis in the puerperium",
            "attributes": {
              "type": "dvt"
            }
          },
          {
            "code": "O873",
            "description": "Cerebral venous thrombosis in the puerperium",
            "attributes": {
              "type": "cvt"
            }
          },
          {
            "code": "O882",
            "description": "Obstetric blood-clot embolism",
            "attributes": {
              "type": "pe"
            }
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "4402fca7",
    "open_codelist_version_tag": "",
    "status": 1,
    "doi": "https://doi.org/10.48533/brg5-7e42",
    "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": 8951,
        "version_name": "Venous thromboembolism (current) by type - secondary care and mortality data",
        "version_date": "2026-01-26T23:35:00.231524Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]