F90.0 — Attention-deficit hyperactivity disorder, predominantly inattentive type
F90.0 is a billable, specific ICD-10-CM code for attention-deficit hyperactivity disorder, predominantly inattentive type. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Attention-deficit/hyperactivity disorder, predominantly inattentive presentation
Risk adjustment
F90.0 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
F90.0 is named in 16 Medicare coverage policies — 14 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A56865Billing and Coding: Psychiatric Inpatient Hospitalizationnot covered
- A56818Billing and Coding: Urine Drug Testing
- A56937Billing and Coding: Psychiatry and Psychology Services
How F90.0 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 F90.0.
- Disorder›attention-deficit hyperactivity›inattentive›presentation
- Disorder›attention-deficit hyperactivity›inattentive›type
Related codes at this level
Codes that share F90. If F90.0 is not quite right, the correct code is usually one of these.
Questions about F90.0
- Is F90.0 a billable ICD-10-CM code?
- Yes. F90.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F90.0 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98).