ICD-10-CM 2027
ICD-10 code for concentration deficit
From the official ICD-10-CM alphabetic index entry “Deficit › concentration”. Page updated September 29, 2026.
About coding concentration deficit
The ICD-10-CM code for concentration deficit is R41.840 (Attention and concentration deficit).
Within R41.84 (other specified cognitive deficit), R41.840 is specifically for attention and concentration deficit. Related codes cover cognitive communication deficit (R41.841), Visuospatial deficit (R41.842), psychomotor deficit (R41.843) and frontal lobe and executive function deficit (R41.844).
Don't report R41.840 together with the conditions in its Excludes1 note: attention-deficit hyperactivity disorders (F90.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for R41.840)
- attention-deficit hyperactivity disorders (F90.-)
Common questions about concentration deficit ICD-10 codes
What is the ICD-10 code for concentration deficit?
- R41.840 — Attention and concentration deficit.
Is R41.840 billable?
- Yes. R41.840 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R41.840 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R41.840 as a principal diagnosis.
Is R41.840 a CC or MCC?
- No. R41.840 is neither a CC nor an MCC under MS-DRG v44.0.