ICD-10-CM 2027
ICD-10 code for Anosognosia
From the official ICD-10-CM alphabetic index entry “Anosognosia”. Page updated September 29, 2026.
About coding Anosognosia
The ICD-10-CM code for Anosognosia is R41.85 (Anosognosia).
Within R41.8 (other symptoms and signs involving cognitive functions and awareness), R41.85 is specifically for Anosognosia. Related codes cover age-related cognitive decline (R41.81), Altered mental status, unspecified (R41.82), borderline intellectual functioning (R41.83), other specified cognitive deficit (R41.84) and other symptoms and signs involving cognitive functions and awareness (R41.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 884 (Organic Disturbances and Intellectual Disability, relative weight 1.6001), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Anosognosia ICD-10 codes
What is the ICD-10 code for Anosognosia?
- R41.85 — Anosognosia.
Is R41.85 billable?
- Yes. R41.85 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R41.85 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R41.85 as a principal diagnosis.
Is R41.85 a CC or MCC?
- No. R41.85 is neither a CC nor an MCC under MS-DRG v44.0.