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).

What cannot be coded together with R41.9?

R41.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R41.9 (R41) and apply to it just the same.

R41.9

R41.9 — Unspecified symptoms and signs involving cognitive functions and awareness

Billable / specific codeICD-10-CM

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

Excludes1 inherited from the categories above R41.9

These are not written on R41.9, but they bind it: a note on a category applies to every code beneath it. Billing R41.9 with anything listed here is a denial.

Written on R41 — Other symptoms and signs involving cognitive functions and awareness

dissociative [conversion] disorders (F44.-)
mild cognitive impairment of uncertain or unknown etiology (G31.84)

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

Code history

R41.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

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).
What cannot be coded together with R41.9?: R41.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R41.9 (R41) and apply to it just the same.