Stroke (excluding TIA) ICD-10

Coding system: ICD-10
Coding system release: combined_20260909105914_47430d19
Organisation: OpenSAFELY
Codelist ID: opensafely/stroke-excluding-tia-icd10-new
Version ID: 11b84db6
Number of codes included: 21

Versions

Description

An ICD-10 codelist to identify a diagnosis of stroke (excluding TIA).

Methodology

Method

Review ICD-10 tree for Cerebrovascular diseases (I60-I69). Include appropriate stroke codes as per inclusion/exclusion criteria.

Inclusion/exclusion criteria

Include clear stroke diagnoses (I61, I63 and I64, including child codes) Exclude codes for transient ischaemic attack. Exclude codes for sequelae of stroke (I69). Exclude codes for SAH (I60) in keeping with NHS refset.

Borderline cases

Other nontraumatic intracranial haemorrhage I62 and child codes:
- Subdural haemorrhage (acute)(nontraumatic) I620
- Nontraumatic extradural haemorrhage I621
- Intracranial haemorrhage (nontraumatic), unspecified I629

I620 and I621 refer to subdural and extradural site so do not meet definition. I629 is non-specific and may include haemorrhages that do not meet the stroke definition. Intracerebral haemorrhage is more specifically captured under I61.

Based on this, I62 and its child codes were excluded. This is in keeping with the LSHTM codelist linked above.

Sensitivity vs specificity

Prioritise specificity for stroke diagnosis

References

Signed off by

Chris Wood, (Nov. 5, 2026)
Arina Tamborska, (Nov. 5, 2026)

Codelists are developed by a broad community of users for individual study purposes, which may or may not meet the needs of other studies. They should not be thought of as universal definitions of a particular condition.

We don't offer any guarantees about what they do or don't identify. Users should carefully check that any codelist meets their needs, and seek clinical input where appropriate.

code	term
I61	Intracerebral haemorrhage
I610	Intracerebral haemorrhage in hemisphere, subcortical
I611	Intracerebral haemorrhage in hemisphere, cortical
I612	Intracerebral haemorrhage in hemisphere, unspecified
I613	Intracerebral haemorrhage in brain stem
I614	Intracerebral haemorrhage in cerebellum
I615	Intracerebral haemorrhage, intraventricular
I616	Intracerebral haemorrhage, multiple localized
I618	Other intracerebral haemorrhage
I619	Intracerebral haemorrhage, unspecified
I63	Cerebral infarction
I630	Cerebral infarction due to thrombosis of precerebral arteries
I631	Cerebral infarction due to embolism of precerebral arteries
I632	Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries
I633	Cerebral infarction due to thrombosis of cerebral arteries
I634	Cerebral infarction due to embolism of cerebral arteries
I635	Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries
I636	Cerebral infarction due to cerebral venous thrombosis, nonpyogenic
I638	Other cerebral infarction
I639	Cerebral infarction, unspecified
I64	Stroke, not specified as haemorrhage or infarction

This page shows the search terms that were used to build the codelist. Concepts that match the search terms, but which were excluded, are in faint grey.

code: I60-I69

Included 21 out of 75 matching concepts.

Show matching concepts

Cerebral amyloid angiopathy (I680)
Cerebral aneurysm, nonruptured (I671)
Cerebral arteritis in infectious and parasitic diseases classified elsewhere (I681)
Cerebral arteritis in other diseases classified elsewhere (I682)
Cerebral arteritis, not elsewhere classified (I677)
Cerebral atherosclerosis (I672)
Cerebral infarction (I63)
Cerebral infarction due to cerebral venous thrombosis, nonpyogenic (I636)
Cerebral infarction due to embolism of cerebral arteries (I634)
Cerebral infarction due to embolism of precerebral arteries (I631)
Cerebral infarction due to thrombosis of cerebral arteries (I633)
Cerebral infarction due to thrombosis of precerebral arteries (I630)
Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries (I635)
Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries (I632)
Cerebral infarction, unspecified (I639)
Cerebrovascular disease, unspecified (I679)
Cerebrovascular diseases (I60-I69)
Cerebrovascular disorders in diseases classified elsewhere (I68)
Dissection of cerebral arteries, nonruptured (I670)
Hypertensive encephalopathy (I674)
Intracerebral haemorrhage (I61)
Intracerebral haemorrhage in brain stem (I613)
Intracerebral haemorrhage in cerebellum (I614)
Intracerebral haemorrhage in hemisphere, cortical (I611)
Intracerebral haemorrhage in hemisphere, subcortical (I610)
Intracerebral haemorrhage in hemisphere, unspecified (I612)
Intracerebral haemorrhage, intraventricular (I615)
Intracerebral haemorrhage, multiple localized (I616)
Intracerebral haemorrhage, unspecified (I619)
Intracranial haemorrhage (nontraumatic), unspecified (I629)
Moyamoya disease (I675)
Nonpyogenic thrombosis of intracranial venous system (I676)
Nontraumatic extradural haemorrhage (I621)
Occlusion and stenosis of anterior cerebral artery (I661)
Occlusion and stenosis of basilar artery (I651)
Occlusion and stenosis of carotid artery (I652)
Occlusion and stenosis of cerebellar arteries (I663)
Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction (I66)
Occlusion and stenosis of middle cerebral artery (I660)
Occlusion and stenosis of multiple and bilateral cerebral arteries (I664)
Occlusion and stenosis of multiple and bilateral precerebral arteries (I653)
Occlusion and stenosis of other cerebral artery (I668)
Occlusion and stenosis of other precerebral artery (I658)
Occlusion and stenosis of posterior cerebral artery (I662)
Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction (I65)
Occlusion and stenosis of unspecified cerebral artery (I669)
Occlusion and stenosis of unspecified precerebral artery (I659)
Occlusion and stenosis of vertebral artery (I650)
Other cerebral infarction (I638)
Other cerebrovascular diseases (I67)
Other cerebrovascular disorders in diseases classified elsewhere (I688)
Other intracerebral haemorrhage (I618)
Other nontraumatic intracranial haemorrhage (I62)
Other specified cerebrovascular diseases (I678)
Other subarachnoid haemorrhage (I608)
Progressive vascular leukoencephalopathy (I673)
Sequelae of cerebral infarction (I693)
Sequelae of cerebrovascular disease (I69)
Sequelae of intracerebral haemorrhage (I691)
Sequelae of other and unspecified cerebrovascular diseases (I698)
Sequelae of other nontraumatic intracranial haemorrhage (I692)
Sequelae of stroke, not specified as haemorrhage or infarction (I694)
Sequelae of subarachnoid haemorrhage (I690)
Stroke, not specified as haemorrhage or infarction (I64)
Subarachnoid haemorrhage (I60)
Subarachnoid haemorrhage from anterior communicating artery (I602)
Subarachnoid haemorrhage from basilar artery (I604)
Subarachnoid haemorrhage from carotid siphon and bifurcation (I600)
Subarachnoid haemorrhage from intracranial artery, unspecified (I607)
Subarachnoid haemorrhage from middle cerebral artery (I601)
Subarachnoid haemorrhage from other intracranial arteries (I606)
Subarachnoid haemorrhage from posterior communicating artery (I603)
Subarachnoid haemorrhage from vertebral artery (I605)
Subarachnoid haemorrhage, unspecified (I609)
Subdural haemorrhage (acute)(nontraumatic) (I620)