R41.9 — Unspecified symptoms and signs involving cognitive functions and awareness
R41.9 is a billable, specific ICD-10-CM code for unspecified symptoms and signs involving cognitive functions and awareness. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Unspecified neurocognitive disorder
Risk adjustment
R41.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
R41.9 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A57130Billing and Coding: Psychiatric Codes
- A57307Billing and Coding: Nerve Conduction Studies and Electromyography
How R41.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R41.9.
- Disorder›neurocognitive
- Lack of›awareness
- Lack of›cognitive functions
- Symptoms NEC›involving›awareness
- Symptoms NEC›involving›cognitive functions
Related codes at this level
Codes that share R41. If R41.9 is not quite right, the correct code is usually one of these.
Questions about R41.9
- Is R41.9 a billable ICD-10-CM code?
- Yes. R41.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R41.9 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).