2026 ICD-10-CM Diagnosis Code R41.85Anosognosia

ICD-10-CM Codes›R00–R99›R40-R46›R41

ICD-10-CM R41.85
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R41.85 is a billable ICD-10-CM diagnosis code for anosognosia. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nervous system signs and symptoms.

Code Identity

ICD-10-CM Code
R41.85
Billable Status
Yes — Valid for Submission
Code Describes
Anosognosia
Short Description
Anosognosia
Same as the full description in the CMS dataset.
Parent Code
R41.8
Other symptoms and signs involving cognitive functions and awareness

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR40-R46Symptoms and signs involving cognition, perception, emotional state and behavior
CategoryR41Other symptoms and signs involving cognitive functions and awareness
This CodeR41.85Anosognosia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anosognosia
  • Organic disorder of body schema

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.

    • Anosognosia

Clinical ClassificationClinical

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

CCSR SYM010
Nervous system signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Code History & ChangesHistory

Replacement R41.85 replaces the following previously assigned code(s):

  • R41.89 - Oth symptoms and signs w cognitive functions and awareness
FY 2025AddedAdded to the ICD-10-CM code setEffective October 1, 2024.
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R41.85Overview

Is R41.85 a billable code?

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

Can R41.85 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the anosognosia is established, that condition takes the principal position instead.

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.