R41.840 — Attention and concentration deficit
R41.840 is a billable, specific ICD-10-CM code for attention and concentration deficit. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- attention-deficit hyperactivity disorders (F90.-)
Excludes1 inherited from the categories above R41.840
These are not written on R41.840, but they bind it: a note on a category applies to every code beneath it. Billing R41.840 with anything listed here is a denial.
Written on R41.84 — Other specified cognitive deficit
Risk adjustment
R41.840 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
R41.840 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52866Billing and Coding: Speech-Language Pathology
- A53057Billing and Coding: Home Health Occupational Therapy
- A53058Billing and Coding: Home Health Physical Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
How R41.840 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 R41.840.
- Deficit›attention and concentration
- Deficit›concentration
Code history
R41.840 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 R41.84. If R41.840 is not quite right, the correct code is usually one of these.
Questions about R41.840
- Is R41.840 a billable ICD-10-CM code?
- Yes. R41.840 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R41.840 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 R41.840?
- R41.840 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 R41.840 (R41.84, R41) and apply to it just the same.