ICD-10-CM 2027
ICD-10 code for cerebral ischemia
From the official ICD-10-CM alphabetic index entry “Ischemia, ischemic › cerebral (chronic) (generalized)”. Page updated September 29, 2026.
About coding cerebral ischemia
The ICD-10-CM code for cerebral ischemia is I67.82 (Cerebral ischemia). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I67.82.
Within I67.8 (other specified cerebrovascular diseases), I67.82 is specifically for cerebral ischemia. Related codes cover acute cerebrovascular insufficiency (I67.81), posterior reversible encephalopathy syndrome (I67.83), cerebral vasospasm and vasoconstriction (I67.84), hereditary cerebrovascular diseases (I67.85) and other cerebrovascular disease (I67.89).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 061 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with MCC, relative weight 2.7211), DRG 062 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with CC, relative weight 1.7781), DRG 063 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent without CC/MCC, relative weight 1.455) and DRG 069 (Transient Ischemia without Thrombolytic, relative weight 0.7964), 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 cerebral ischemia codes (official index)
- arteriosclerotic I67.2 — Cerebral atherosclerosis
- intermittent G45.9 — Transient cerebral ischemic attack, unspecified
- newborn P91.0 — Neonatal cerebral ischemia
- recurrent focal G45.8 — Other transient cerebral ischemic attacks and related syndromes
- transient G45.9 — Transient cerebral ischemic attack, unspecified
Common questions about cerebral ischemia ICD-10 codes
What is the ICD-10 code for cerebral ischemia?
- I67.82 — Cerebral ischemia. More specific codes apply when the documentation supports them: I67.2, G45.9, P91.0, G45.8 and others below.
What is the ICD-10 code for arteriosclerotic cerebral ischemia?
- I67.2 — Cerebral atherosclerosis.
What is the ICD-10 code for intermittent cerebral ischemia?
- G45.9 — Transient cerebral ischemic attack, unspecified.
What is the ICD-10 code for newborn cerebral ischemia?
- P91.0 — Neonatal cerebral ischemia.
What is the ICD-10 code for recurrent focal cerebral ischemia?
- G45.8 — Other transient cerebral ischemic attacks and related syndromes.
What is the ICD-10 code for transient cerebral ischemia?
- G45.9 — Transient cerebral ischemic attack, unspecified.
Is I67.82 billable?
- Yes. I67.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I67.82 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I67.82 as a principal diagnosis.
Is I67.82 a CC or MCC?
- I67.82 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.