ICD-10-CM 2027
ICD-10 code for artery occlusion
From the official ICD-10-CM alphabetic index entry “Occlusion, occluded › artery”. Page updated September 29, 2026.
About coding artery occlusion
The ICD-10-CM code for artery occlusion is I70.9 (Other and unspecified atherosclerosis). The official index lists 74 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I70.9.
Within I70, choose I70.9 (Other and unspecified atherosclerosis) only when documentation doesn't support a more specific option: of aorta (I70.0), of renal artery (I70.1), of native arteries of the extremities (I70.2), of unspecified type of bypass graft(s) of the extremities (I70.3), of autologous vein bypass graft(s) of the extremities (I70.4), of nonautologous biological bypass graft(s) of the extremities (I70.5), of nonbiological bypass graft(s) of the extremities (I70.6), of other type of bypass graft(s) of the extremities (I70.7) and 1 more.
To report this condition, pick the subcode that matches the documentation: I70.90 (atherosclerosis), I70.91 (atherosclerosis) and I70.92 (extremities).
The conditions in its Excludes2 note aren't part of I70.9, but may be coded alongside it if the patient has both: disorders of pyrophosphate metabolism (E83.82-).
More specific artery occlusion codes (official index)
- auditory, internal I65.8 — Occlusion and stenosis of other precerebral arteries
- basilar I65.1 — Occlusion and stenosis of basilar artery
- with
- infarction I63.22 — Cerebral infarction due to unspecified occlusion or stenosis of basilar artery
- due to
- embolism I63.12 — Cerebral infarction due to embolism of basilar artery
- thrombosis I63.02 — Cerebral infarction due to thrombosis of basilar artery
- brain or cerebral I66.9 — Occlusion and stenosis of unspecified cerebral artery
- with infarction (due to) I63.5 — Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries
- embolism I63.4 — Cerebral infarction due to embolism of cerebral arteries
- thrombosis I63.3 — Cerebral infarction due to thrombosis of cerebral arteries
- carotid I65.2 — Occlusion and stenosis of carotid artery
- with
- infarction I63.23 — Cerebral infarction due to unspecified occlusion or stenosis of carotid arteries
- due to
- embolism I63.13 — Cerebral infarction due to embolism of carotid artery
- thrombosis I63.03 — Cerebral infarction due to thrombosis of carotid artery
- cerebellar (anterior inferior) (posterior inferior) (superior) I66.3 — Occlusion and stenosis of cerebellar arteries
- with infarction I63.54 — Cerebral infarction due to unspecified occlusion or stenosis of cerebellar artery
- due to
- embolism I63.44 — Cerebral infarction due to embolism of cerebellar artery
- thrombosis I63.34 — Cerebral infarction due to thrombosis of cerebellar artery
- cerebral I66.9 — Occlusion and stenosis of unspecified cerebral artery
- with infarction I63.50 — Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral artery
- due to
- embolism I63.40 — Cerebral infarction due to embolism of unspecified cerebral artery
- specified NEC I63.49 — Cerebral infarction due to embolism of other cerebral artery
- thrombosis I63.30 — Cerebral infarction due to thrombosis of unspecified cerebral artery
- specified NEC I63.39 — Cerebral infarction due to thrombosis of other cerebral artery
- anterior I66.1 — Occlusion and stenosis of anterior cerebral artery
- with infarction I63.52 — Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral artery
- due to
- embolism I63.42 — Cerebral infarction due to embolism of anterior cerebral artery
- thrombosis I63.32 — Cerebral infarction due to thrombosis of anterior cerebral artery
- middle I66.0 — Occlusion and stenosis of middle cerebral artery
- with infarction I63.51 — Cerebral infarction due to unspecified occlusion or stenosis of middle cerebral artery
- due to
- embolism I63.41 — Cerebral infarction due to embolism of middle cerebral artery
- thrombosis I63.31 — Cerebral infarction due to thrombosis of middle cerebral artery
- posterior I66.2 — Occlusion and stenosis of posterior cerebral artery
- with infarction I63.53 — Cerebral infarction due to unspecified occlusion or stenosis of posterior cerebral artery
- due to
- embolism I63.43 — Cerebral infarction due to embolism of posterior cerebral artery
- thrombosis I63.33 — Cerebral infarction due to thrombosis of posterior cerebral artery
- specified NEC I66.8 — Occlusion and stenosis of other cerebral arteries
- with infarction I63.59 — Cerebral infarction due to unspecified occlusion or stenosis of other cerebral artery
- due to
- embolism I63.4 — Cerebral infarction due to embolism of cerebral arteries
- thrombosis I63.3 — Cerebral infarction due to thrombosis of cerebral arteries
- choroidal (anterior)
- communicating posterior
- complete
- coronary I25.82 — Chronic total occlusion of coronary artery
- extremities I70.92 — Chronic total occlusion of artery of the extremities
- coronary (acute) (thrombotic) (without myocardial infarction) I24.0 — Acute coronary thrombosis not resulting in myocardial infarction
- with myocardial infarction
- chronic total I25.82 — Chronic total occlusion of coronary artery
- complete I25.82 — Chronic total occlusion of coronary artery
- healed or old I25.2 — Old myocardial infarction
- total (chronic) I25.82 — Chronic total occlusion of coronary artery
- hypophyseal
- iliac I74.5 — Embolism and thrombosis of iliac artery
- lower extremities due to stenosis or stricture I77.1 — Stricture of artery
- mesenteric (embolic) (thrombotic) K55.069 — Acute infarction of intestine, part and extent unspecified
- perforating
- peripheral I77.9 — Disorder of arteries and arterioles, unspecified
- thrombotic or embolic I74.4 — Embolism and thrombosis of arteries of extremities, unspecified
- pontine
- precerebral I65.9 — Occlusion and stenosis of unspecified precerebral artery
- with infarction I63.20 — Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteries
- specified NEC I63.29 — Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries
- due to
- embolism I63.10 — Cerebral infarction due to embolism of unspecified precerebral artery
- specified NEC I63.19 — Cerebral infarction due to embolism of other precerebral artery
- thrombosis I63.00 — Cerebral infarction due to thrombosis of unspecified precerebral artery
- specified NEC I63.09 — Cerebral infarction due to thrombosis of other precerebral artery
- basilar
- carotid
- puerperal O88.23 — Thromboembolism in the puerperium
- specified NEC I65.8 — Occlusion and stenosis of other precerebral arteries
- with infarction I63.29 — Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries
- due to
- embolism I63.19 — Cerebral infarction due to embolism of other precerebral artery
- thrombosis I63.09 — Cerebral infarction due to thrombosis of other precerebral artery
- vertebral
- renal N28.0 — Ischemia and infarction of kidney
- retinal
- central H34.1 — Central retinal artery occlusion
- partial H34.21 — Partial retinal artery occlusion
- branch H34.23 — Retinal artery branch occlusion
- transient H34.0 — Transient retinal artery occlusion
- spinal
- total (chronic)
- coronary I25.82 — Chronic total occlusion of coronary artery
- extremities I70.92 — Chronic total occlusion of artery of the extremities
- vertebral I65.0 — Occlusion and stenosis of vertebral artery
- with
- infarction I63.21 — Cerebral infarction due to unspecified occlusion or stenosis of vertebral arteries
- due to
- embolism I63.11 — Cerebral infarction due to embolism of vertebral artery
- thrombosis I63.01 — Cerebral infarction due to thrombosis of vertebral artery
Common questions about artery occlusion ICD-10 codes
What is the ICD-10 code for artery occlusion?
- I70.9 — Other and unspecified atherosclerosis (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: I65.8, I65.1, I63.22, I63.12 and others below.
What is the ICD-10 code for basilar artery occlusion?
- I65.1 — Occlusion and stenosis of basilar artery.
What is the ICD-10 code for brain or cerebral artery occlusion?
- I66.9 — Occlusion and stenosis of unspecified cerebral artery.
What is the ICD-10 code for carotid artery occlusion?
- I65.2 — Occlusion and stenosis of carotid artery (header code; choose a more specific subcode).
What is the ICD-10 code for cerebellar artery occlusion?
- I66.3 — Occlusion and stenosis of cerebellar arteries.
What is the ICD-10 code for cerebral artery occlusion?
- I66.9 — Occlusion and stenosis of unspecified cerebral artery.
What is the ICD-10 code for coronary artery occlusion?
- I24.0 — Acute coronary thrombosis not resulting in myocardial infarction.
Is I70.9 billable?
- No. I70.9 is a header code. Report one of its more specific subcodes instead.