[
  {
    "phenotype_id": "PH3494",
    "phenotype_version_id": 8541,
    "name": "Incident Stroke",
    "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\nCodes relating to incident stroke in primary care.\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": "2026-01-26T23:19:40.914640Z",
    "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": "2026-01-26T23:19:40.910566Z",
    "references": [],
    "signed_off": [],
    "methodology": "Taken from here https://codelists.opensafely.org/codelist/opensafely/stroke\\-updated/2020\\-06\\-02/ but with codes that are unlikely to relate to incident events removed (such as H/O, sequelae, and others associated with follow\\-up \\- e.g. \"Stroke 6 month review\"). Codes have also been categorised into \"haemorrhagic\", \"ischaemic\" and \"unspecified\" types.\n\n",
    "coding_system": [
      {
        "name": "Read codes v3",
        "value": 6
      }
    ],
    "open_codelist_id": "opensafely/incident-stroke",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/incident-stroke/2020-10-05",
    "concept_information": [
      {
        "concept_id": 8718,
        "concept_version_id": 16203,
        "concept_name": "opensafely/incident-stroke/2020-10-05",
        "coding_system": {
          "id": 6,
          "name": "Read codes v3",
          "description": "Read codes v3"
        },
        "phenotype_id": "PH3494",
        "phenotype_version_id": 8541,
        "phenotype_name": "Incident Stroke",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "A94y6",
            "description": "Rupture of syphilitic cerebral aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "F4K7.",
            "description": "Retrobulbar haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Fyu56",
            "description": "[X]Other lacunar syndromes",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "Fyu57",
            "description": "[X]Other vascular syndroms/brain in cerebrovasculr diseases",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G6...",
            "description": "Cerebrovascular disease",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G600.",
            "description": "Ruptured berry aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G601.",
            "description": "Subarachnoid haemorrhage from carotid siphon and bifurcation",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G606.",
            "description": "Subarachnoid haemorrhage from vertebral artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G60z.",
            "description": "Subarachnoid haemorrhage NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G61..",
            "description": "Intracerebral haemorrhage (& [cerebrovasc accident due to])",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G610.",
            "description": "Cortical haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G611.",
            "description": "Internal capsule haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G612.",
            "description": "Basal ganglia haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G613.",
            "description": "Cerebellar haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G614.",
            "description": "Pontine haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G615.",
            "description": "Bulbar haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G616.",
            "description": "External capsule haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G617.",
            "description": "Intracerebral haemorrhage, intraventricular",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G618.",
            "description": "Intracerebral haemorrhage, multiple localised",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G61z.",
            "description": "Intracerebral haemorrhage NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G62..",
            "description": "Other and unspecified intracranial haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G62z.",
            "description": "Intracranial haemorrhage NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "G63..",
            "description": "Precerebral: [arterial occlusion][arterial stenos][infarct]",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G630.",
            "description": "Basilar artery occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G632.",
            "description": "Vertebral artery occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G633.",
            "description": "Multiple and bilateral precerebral arterial occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G63y.",
            "description": "Other precerebral artery occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G63y0",
            "description": "Cerebral infarct due to thrombosis of precerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G63y1",
            "description": "Cerebral infarction due to embolism of precerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G63z.",
            "description": "Precerebral artery occlusion NOS",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G64..",
            "description": "Cereb art occl (& [cerebvasc acc][stroke]) or (cereb infarc)",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G640.",
            "description": "Cerebral thrombosis",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6400",
            "description": "Cerebral infarction due to thrombosis of cerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G641.",
            "description": "Cerebral embolus",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6410",
            "description": "Cerebral infarction due to embolism of cerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G64z.",
            "description": "Infarct (& [cerebell] or [cerebral NOS] or [brainstem NOS])",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G64z1",
            "description": "Wallenberg syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G650.",
            "description": "Basilar artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G651.",
            "description": "Vertebral artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6510",
            "description": "Vertebrobasilar artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G653.",
            "description": "Carotid artery syndrome hemispheric",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G654.",
            "description": "Multiple and bilateral precerebral artery syndromes",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G66..",
            "description": "CVA - cerebrovascular accident (& unspecified [& stroke])",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G660.",
            "description": "Middle cerebral artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G661.",
            "description": "Anterior cerebral artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G662.",
            "description": "Posterior cerebral artery syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G663.",
            "description": "Brainstem stroke syndrome",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G664.",
            "description": "Cerebellar stroke syndrome",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G667.",
            "description": "Left sided cerebral hemisphere cerebrovascular accident",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G668.",
            "description": "Right sided cerebral hemisphere cerebrovascular accident",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "G6760",
            "description": "Cereb infarct due cerebral venous thrombosis, non-pyogenic",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G677.",
            "description": "Occlusion/stenosis cerebral arts not result cerebral infarct",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6770",
            "description": "Occlusion and stenosis of middle cerebral artery",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6771",
            "description": "Occlusion and stenosis of anterior cerebral artery",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6772",
            "description": "Occlusion and stenosis of posterior cerebral artery",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6773",
            "description": "Occlusion and stenosis of cerebellar arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6774",
            "description": "Occlusion+stenosis of multiple and bilat cerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "G6X..",
            "description": "[X]Cerebrl infarctn due/unspcf occlusn or sten/cerebrl artrs",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Gyu60",
            "description": "[X]Subarachnoid haemorrhage from other intracranial arteries",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Gyu61",
            "description": "[X]Other subarachnoid haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Gyu62",
            "description": "[X]Other intracerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Gyu63",
            "description": "[X]Cerebrl infarctn due/unspcf occlusn or sten/cerebrl artrs",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Gyu64",
            "description": "[X]Other cerebral infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Gyu65",
            "description": "[X]Occlusion and stenosis of other precerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Gyu66",
            "description": "[X]Occlusion and stenosis of other cerebral arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Gyu6E",
            "description": "[X]Subarachnoid haemorrh from intracranial artery, unspecif",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Gyu6F",
            "description": "[X]Intracerebral haemorrhage in hemisphere, unspecified",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Gyu6G",
            "description": "[X]Cereb infarct due unsp occlus/stenos precerebr arteries",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "L440.",
            "description": "Cerebrovasc disord in puerperium (& [CVA - cerebrovasc acc])",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L4400",
            "description": "Puerperal cerebrovascular disorder unspecified",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L4401",
            "description": "Puerperal cerebrovascular disorder - delivered",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L4402",
            "description": "Puerperal cerebrovascular disorder - delivered with p/n comp",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L4403",
            "description": "Puerperal cerebrovascular disorder with antenatal comp",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L4404",
            "description": "Puerperal cerebrovascular disorder with postnatal comp",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "L440z",
            "description": "Puerperal cerebrovascular disorder NOS",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "Q200.",
            "description": "Subdural and cerebral haemorrhage due to birth trauma",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Q411.",
            "description": "Perinatal intraventricular haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Q412.",
            "description": "Perinatal subarachnoid haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Q4120",
            "description": "Subarachnoid haemorrhage due to birth injury",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S62..",
            "description": "(Haemor foll inj: [named variants]) or (traum cerebral haem)",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S620.",
            "description": "Haemorrh: [closed traum subarach] or [mid mening follow inj]",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6200",
            "description": "Subarachnoid h'ge inj no open intracran wound + unspec consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6201",
            "description": "Subarachnoid h'ge inj no open intracran wnd+no loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6202",
            "description": "Subarachnoid h'ge inj no open intracran wnd+<1hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6203",
            "description": "Subarachnoid h'ge inj no open intracran wound + 1-24hr LOC",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6204",
            "description": "Subarachnoid h'ge inj no open intracran wnd+>24 LOC+recovery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6205",
            "description": "Subarach h'ge inj no open intracran wnd+>24hrs LOC-restored",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6206",
            "description": "Subarach h'ge inj no open intracran wnd+LOC unspec duration",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S620z",
            "description": "Subarach h'ge inj no open intracran wnd + concussion unspec",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S621.",
            "description": "Open traumatic subarachnoid haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6210",
            "description": "Subarachnoid h'ge inj + open intracran wound + unspec consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6211",
            "description": "Subarachnoid h'ge inj + open intracranial wound + no LOC",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6212",
            "description": "Subarachnoid h'ge inj + open intracran wound+<1hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6213",
            "description": "Subarachnoid h'ge inj + open intracran wnd+1-24hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6214",
            "description": "Subarach h'ge inj + open intracran wnd +>24hr LOC + recovery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6215",
            "description": "Subarach h'ge inj + open intracran wnd+>24hr LOC -restored",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6216",
            "description": "Subarach h'ge inj + open intracran wnd+LOC unspec duration",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S621z",
            "description": "Subarachnoid h'ge inj + open intracran wnd+concussion unspec",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S62z.",
            "description": "Cerebral haemorrhage following injury NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S63..",
            "description": "Other cerebral haemorrhage following injury",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6300",
            "description": "Oth cerebral h'ge inj no open intracran wnd+unspec consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6301",
            "description": "Oth cerebral h'ge inj no open intracranial wnd+no loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6302",
            "description": "Oth cerebral h'ge inj no open intracran wnd+<1hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6303",
            "description": "Oth cerebral h'ge inj no open intracran wnd+1-24hr LOC",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6304",
            "description": "Oth cereb h'ge inj no open intracran wnd+>24hr LOC +recovery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6305",
            "description": "Oth cereb h'ge inj no open intracran wnd+>24hr LOC -restored",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6306",
            "description": "Oth cereb h'ge inj no open intracran wnd+LOC unspec duration",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S630z",
            "description": "Oth cereb h'ge inj no open intracran wnd+concussion unspec",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S631.",
            "description": "Other cerebral h'ge after injury + open intracranial wound",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6310",
            "description": "Oth cerebral h'ge inj + open intracran wnd + unspec consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6311",
            "description": "Oth cerebral h'ge inj + open intracranial wnd+no loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6312",
            "description": "Oth cerebral h'ge inj + open intracran wnd+<1hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6313",
            "description": "Oth cerebral h'ge inj + open intracran wnd+1-24hr loss consc",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6314",
            "description": "Oth cereb h'ge inj + open intracran wnd+>24hr LOC + recovery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6315",
            "description": "Oth cereb h'ge inj + open intracran wnd+>24hr LOC -restored",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S6316",
            "description": "Oth cereb h'ge inj + open intracran wnd+LOC unspec duration",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S631z",
            "description": "Oth cereb h'ge inj + open intracran wnd+concussion unspec",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "S63z.",
            "description": "Other cerebral haemorrhage following injury NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00D1",
            "description": "Cerebrovascular accident",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "X00D3",
            "description": "CVA - cerebral artery occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D4",
            "description": "Infarction - precerebral",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D5",
            "description": "Anterior cerebral circulation infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D6",
            "description": "Total anterior cerebral circulation infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D7",
            "description": "Partial anterior cerebral circulation infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D8",
            "description": "Posterior cerebral circulation infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00D9",
            "description": "Brainstem infarction NOS",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DA",
            "description": "Lacunar infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DB",
            "description": "Pure motor lacunar infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DC",
            "description": "Pure sensory lacunar infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DD",
            "description": "Pure sensorimotor lacunar infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DE",
            "description": "Lacunar ataxic hemiparesis",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "X00Df",
            "description": "Subarachnoid haemorrhage from rupt arteriovenous malformat",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DG",
            "description": "Multi-infarct state",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "X00DI",
            "description": "Haemorrhagic cerebral infarction",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DJ",
            "description": "Anterior cerebral circulation haemorrhagic infarction",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DK",
            "description": "Posterior cerebral circulation haemorrhagic infarction",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DL",
            "description": "Massive supratentorial cerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DM",
            "description": "Lobar cerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DN",
            "description": "Subcortical cerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DO",
            "description": "Thalamic haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DP",
            "description": "Lacunar haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DQ",
            "description": "Brainstem haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "X00DR",
            "description": "Stroke of uncertain pathology",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "X00DS",
            "description": "Anterior circulation stroke of uncertain pathology",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "X00DT",
            "description": "Posterior circulation stroke of uncertain pathology",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "X204F",
            "description": "Ruptured cerebral aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa00I",
            "description": "Occipital cerebral infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Xa00J",
            "description": "Cerebellar infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Xa00K",
            "description": "Brainstem infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XA0B9",
            "description": "Middle meningeal haemorrhage following injury",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XA0BG",
            "description": "Traumatic intracerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0Bj",
            "description": "Intracerebellar and posterior fossa haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0kZ",
            "description": "Cerebral infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "Xa0N3",
            "description": "Ruptured cerebral arteriovenous malformation",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0N7",
            "description": "Angiogram-negative subarachnoid haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NJ",
            "description": "Ruptured aneurysm of anterior cerebral artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NK",
            "description": "Ruptured aneurysm of middle cerebral artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NN",
            "description": "Ruptured aneurysm of posterior cerebral artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NO",
            "description": "Ruptured aneurysm of anterior communicating artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NQ",
            "description": "Ruptured aneurysm of posterior communicating artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NR",
            "description": "Ruptured aneurysm of basilar artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NS",
            "description": "Ruptured aneurysm of posterior inferior cerebellar artery",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NV",
            "description": "Rupturd intern carotid-anter communic art zone aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NW",
            "description": "Rupt intern carotid-posterior communicat art zone aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa0NX",
            "description": "Ruptured internal carotid bifurcation aneurysm",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "Xa1hE",
            "description": "Extension of cerebrovascular accident",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "Xa3fV",
            "description": "Cerebral artery occlusion NOS",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaB4Z",
            "description": "Multiple lacunar infarcts",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "XaBEC",
            "description": "Left sided cerebral infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaBED",
            "description": "Right sided cerebral infarction",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaBM4",
            "description": "Left sided intracerebral haemorrhage, unspecified",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XaBM5",
            "description": "Right sided intracerebral haemorrhage, unspecified",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XaEGq",
            "description": "Stroke NOS",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "XaeUO",
            "description": "Locked in syndrome",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "XaIRJ",
            "description": "Cereb autosom dominant arteriop subcort infarcts leukoenceph",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaJgQ",
            "description": "Infarction of basal ganglia",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaQbK",
            "description": "Pure motor lacunar syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XaQbM",
            "description": "Pure sensory lacunar syndrome",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XE0VF",
            "description": "Cerebral parenchymal haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XE0VI",
            "description": "Cerebral arterial occlusion",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XE0VJ",
            "description": "Cerebral infarction NOS",
            "attributes": {
              "type": "ischaemic"
            }
          },
          {
            "code": "XE0Wy",
            "description": "Cerebral haemorrhage NOS",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XE0X2",
            "description": "(Cereb infarc)(cerebrovas acc)(undef stroke/CVA)(stroke NOS)",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XE1m2",
            "description": "Traumatic intracranial haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XE2aB",
            "description": "Stroke and cerebrovascular accident unspecified",
            "attributes": {
              "type": "unspecified"
            }
          },
          {
            "code": "XE2bF",
            "description": "Spontaneous subarachnoid haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XM0rV",
            "description": "Cerebral haemorrhage",
            "attributes": {
              "type": "haemorrhagic"
            }
          },
          {
            "code": "XM1PL",
            "description": "Stroke in the puerperium",
            "attributes": {
              "type": "unspecified"
            }
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "449a17de",
    "open_codelist_version_tag": "2020-10-05",
    "status": 1,
    "doi": "https://doi.org/10.48533/qfef-pm97",
    "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": 8541,
        "version_name": "Incident Stroke",
        "version_date": "2026-01-26T23:19:40.920309Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]