ICD-10-CM 2027
ICD-10 code for Akinetic mutism
From the official ICD-10-CM alphabetic index entry “Akinetic mutism”. Page updated September 29, 2026.
About coding Akinetic mutism
The ICD-10-CM code for Akinetic mutism is R41.89 (Other symptoms and signs involving cognitive functions and awareness).
Within R41.8, choose R41.89 (Other symptoms and signs involving cognitive functions and awareness) only when documentation doesn't support a more specific option: age-related cognitive decline (R41.81), Altered mental status, unspecified (R41.82), borderline intellectual functioning (R41.83), other specified cognitive deficit (R41.84) and Anosognosia (R41.85).
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 Akinetic mutism ICD-10 codes
What is the ICD-10 code for Akinetic mutism?
- R41.89 — Other symptoms and signs involving cognitive functions and awareness.
Is R41.89 billable?
- Yes. R41.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R41.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R41.89 as a principal diagnosis.
Is R41.89 a CC or MCC?
- No. R41.89 is neither a CC nor an MCC under MS-DRG v44.0.