ICD-10-CM 2027
ICD-10 code for cerebrovascular disease
From the official ICD-10-CM alphabetic index entry “Disease, diseased › cerebrovascular”. Page updated September 29, 2026.
About coding cerebrovascular disease
The ICD-10-CM code for cerebrovascular disease is I67.9 (Cerebrovascular disease, unspecified). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I67.9.
Within I67, choose I67.9 (Cerebrovascular disease, unspecified) only when documentation doesn't support a more specific option: dissection of cerebral arteries, nonruptured (I67.0), cerebral aneurysm, nonruptured (I67.1), cerebral atherosclerosis (I67.2), progressive vascular leukoencephalopathy (I67.3), hypertensive encephalopathy (I67.4), Moyamoya disease (I67.5), nonpyogenic thrombosis of intracranial venous system (I67.6), cerebral arteritis, not elsewhere classified (I67.7) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 070 (Other Cerebrovascular Disorders with MCC, relative weight 1.6093), DRG 071 (Other Cerebrovascular Disorders with CC, relative weight 1.0177) and DRG 072 (Other Cerebrovascular Disorders without CC/MCC, relative weight 0.7348), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific cerebrovascular disease codes (official index)
- acute I67.89 — Other cerebrovascular disease
- embolic I63.4 — Cerebral infarction due to embolism of cerebral arteries
- thrombotic I63.3 — Cerebral infarction due to thrombosis of cerebral arteries
- arteriosclerotic I67.2 — Cerebral atherosclerosis
- hereditary NEC I67.858 — Other hereditary cerebrovascular disease
- specified NEC I67.89 — Other cerebrovascular disease
Common questions about cerebrovascular disease ICD-10 codes
What is the ICD-10 code for cerebrovascular disease?
- I67.9 — Cerebrovascular disease, unspecified. More specific codes apply when the documentation supports them: I67.89, I63.4, I63.3, I67.2 and others below.
What is the ICD-10 code for acute cerebrovascular disease?
- I67.89 — Other cerebrovascular disease.
What is the ICD-10 code for arteriosclerotic cerebrovascular disease?
- I67.2 — Cerebral atherosclerosis.
What is the ICD-10 code for hereditary nec cerebrovascular disease?
- I67.858 — Other hereditary cerebrovascular disease.
Is I67.9 billable?
- Yes. I67.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I67.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I67.9 as a principal diagnosis.
Is I67.9 a CC or MCC?
- No. I67.9 is neither a CC nor an MCC under MS-DRG v44.0.