2026 ICD-10-CM Diagnosis Code I69.911Memory deficit following unspecified cerebrovascular disease

ICD-10-CM Codes›I00–I99›I60-I69›I69

ICD-10-CM I69.911
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I69.911 is a billable ICD-10-CM diagnosis code for memory deficit following unspecified cerebrovascular disease. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as memory deficit due to and following cerebrovascular disease. 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
I69.911
Billable Status
Yes — Valid for Submission
Code Describes
Memory deficit following unspecified cerebrovascular disease
Short Description
Memory deficit following unspecified cerebrovascular disease
Same as the full description in the CMS dataset.
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 CodeI69.911Memory deficit following unspecified cerebrovascular disease

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Memory deficit due to and following cerebrovascular disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Deficit
      • memory
        • following
          • cerebrovascular disease

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 I69.911 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 I69.911 replaces the following previously assigned code(s):

  • I69.91 - Cognitive deficits following unsp cerebrovascular disease
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I69.911Overview

Is I69.911 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report memory deficit following unspecified cerebrovascular disease on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of I69.911?

Under the General Equivalence Mappings, memory deficit 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.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.