ICD-10-CM 2027 diagnosis code
I67.89Other cerebrovascular disease
I67.89 is a valid, billable ICD-10-CM code for other cerebrovascular disease. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 I67.89
I67.89 is the ICD-10-CM diagnosis code for other cerebrovascular disease. 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, choose I67.89 (Other cerebrovascular disease) only when documentation doesn't support a more specific option: acute cerebrovascular insufficiency (I67.81), cerebral ischemia (I67.82), posterior reversible encephalopathy syndrome (I67.83), cerebral vasospasm and vasoconstriction (I67.84) and hereditary cerebrovascular diseases (I67.85).
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 436 (acute, but ill-defined, cerebrovascular disease), 437.1 (other generalized ischemic cerebrovascular disease) and 437.8 (other ill-defined cerebrovascular disease).
Notes that apply from higher levels
Instructions written at a parent level also apply to I67.89.
Broader instructions also apply from I60-I69 Cerebrovascular diseases and Chapter 9: Diseases of the circulatory system.
Alphabetic index entries
11 entriesTerms in the official ICD-10-CM index that lead to I67.89.
- Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › cerebral
- Disease, diseased › cerebrovascular › acute
- Disease, diseased › cerebrovascular › specified NEC
- Hyperemia (acute) (passive) › cerebral
- Necrosis, necrotic (ischemic) › brain
- Necrosis, necrotic (ischemic) › central nervous system NEC
- Necrosis, necrotic (ischemic) › cerebellar
- Necrosis, necrotic (ischemic) › cerebral
- Thromboangiitis › obliterans (general) › cerebral
- Thromboangiitis › obliterans (general) › vessels › brain
- Thromboangiitis › obliterans (general) › vessels › spinal cord
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
- 061Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with MCCRW 2.7211
- 062Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent with CCRW 1.7781
- 063Ischemic Stroke, Precerebral Occlusion or Transient Ischemia with Thrombolytic Agent without CC/MCCRW 1.455
MDC 01 · Diseases and Disorders of the Nervous System
ICD-9-CM equivalent
Converter →- 436Acute, but ill-defined, cerebrovascular diseaseapproximate
- 437.1Other generalized ischemic cerebrovascular diseaseapproximate
- 437.8Other ill-defined cerebrovascular diseaseapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about I67.89
Is I67.89 billable?
- Yes. I67.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I67.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I67.89 as a principal diagnosis.
Is I67.89 a CC or MCC?
- I67.89 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does I67.89 group to?
- I67.89 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 I67.89?
- The CMS General Equivalence Mappings map I67.89 to ICD-9-CM 436, 437.1 and 437.8.