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