2026 ICD-10-CM Diagnosis Code I69.918Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease

ICD-10-CM Codes›I00–I99›I60-I69›I69

ICD-10-CM I69.918
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I69.918 is a billable ICD-10-CM diagnosis code for other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 56 through 57. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sequela of cerebral infarction and other cerebrovascular disease.

Code Identity

ICD-10-CM Code
I69.918
Billable Status
Yes — Valid for Submission
Code Describes
Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease
Short Description
Other symp and signs w cogn fnctns fol unsp cerebvasc dis
Parent Code
I69.91
Cognitive deficits following unspecified cerebrovascular disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI60-I69Cerebrovascular diseases
CategoryI69Sequelae of cerebrovascular disease
This CodeI69.918Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR025
Sequela of cerebral infarction and other cerebrovascular disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Brain Diseases

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I69.918 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
438.0 Late ef CV dis-cognf def
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement I69.918 replaces the following previously assigned code(s):

  • I69.91 - Cognitive deficits following unsp cerebrovascular disease
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I69.918Overview

Is I69.918 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I69.918 group to?

When other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease is the principal diagnosis on an inpatient stay, it groups to MS-DRG 56, 57, with relative weights from 1.2956 to 2.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I69.918?

Under the General Equivalence Mappings, other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease converts to ICD-9-CM 438.0 (late ef CV dis-cognf def). The mapping is approximate, so confirm the match fits the documentation.