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ICD-10-CM 2027 diagnosis code

I67.82Cerebral ischemia

✓ Billable / specificCC — complication/comorbidity

I67.82 is a valid, billable ICD-10-CM code for cerebral ischemia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Cerebral ischemia, ICD-10 code for Apoplectiform convulsions.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I67.82

I67.82 is the ICD-10-CM diagnosis code for cerebral ischemia. It belongs to category I67 (other cerebrovascular diseases), block I60-I69 (cerebrovascular diseases) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

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.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 437.1 (other generalized ischemic cerebrovascular disease).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Chronic cerebral ischemia

Notes that apply from higher levels

Instructions written at a parent level also apply to I67.82.

› From I67 Other cerebrovascular diseases
Excludes1
  • Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
  • Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)
Excludes2
  • sequelae of the listed conditions (I69.8)

Broader instructions also apply from I60-I69 Cerebrovascular diseases and Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

3 entries

Terms in the official ICD-10-CM index that lead to I67.82.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 01 · Diseases and Disorders of the Nervous System

ICD-9-CM equivalent

Converter →
  • 437.1Other generalized ischemic cerebrovascular diseaseapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I67.82

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.

What DRG does I67.82 group to?

I67.82 is used in the MS-DRG v44.0 logic for MS-DRG 061 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with MCC), MS-DRG 062 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with CC), MS-DRG 063 (Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent without CC/MCC) and MS-DRG 069 (Transient Ischemia without Thrombolytic). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for I67.82?

The CMS General Equivalence Mappings map I67.82 to ICD-9-CM 437.1.