ICD-10 F90 codes cover Attention-Deficit Hyperactivity Disorder (ADHD). Using the most specific F90 subcode — and pairing it with the right CPT codes — ensures cleaner claims and reduces the risk of insurance denials.
F90 Code Breakdown
- F90.0 — ADHD, Predominantly Inattentive Presentation. Use when the client primarily shows symptoms of inattention with minimal hyperactivity or impulsivity.
- F90.1 — ADHD, Predominantly Hyperactive-Impulsive Presentation. Use when hyperactivity and impulsivity dominate with less prominent inattention.
- F90.2 — ADHD, Combined Presentation. Use when criteria are met for both inattentive and hyperactive-impulsive presentations — the most common adult subtype billed.
- F90.8 — Other Specified ADHD. Use when ADHD symptoms cause impairment but do not fully meet criteria for the subtypes above.
- F90.9 — ADHD, Unspecified. Use when ADHD is confirmed but the presentation subtype has not been determined (e.g., early in treatment).
Who Can Diagnose ADHD and Bill F90 Codes
Scope of practice for ADHD diagnosis varies by license type and state:
- Psychologists — Can diagnose ADHD in all states; also perform neuropsychological testing
- LCSWs, LPCs, LMFTs — Can diagnose ADHD in most states if the diagnosis is within their clinical training and scope of practice; cannot prescribe medication
- Psychiatrists and NPs — Can diagnose and prescribe; bill F90 on psychiatric management claims
If you have clinical training in ADHD assessment and your state license permits diagnosis, you can list F90.x as the primary or secondary diagnosis on a superbill.
CPT Codes for ADHD Therapy
- 90837 — 60-minute individual psychotherapy; the most common code for ADHD-focused therapy (CBT for ADHD, executive function coaching integrated with therapy)
- 90834 — 45-minute individual psychotherapy
- 90847 — Family therapy with the client present; useful for child/ adolescent ADHD work with parents
Psychological Testing Codes for ADHD
When a psychologist conducts a formal ADHD evaluation (not just therapy), different CPT codes apply:
- 96130 — Psychological testing evaluation, first hour (examiner administered)
- 96131 — Each additional hour of 96130
- 96132 — Neuropsychological testing evaluation, first hour
- 96133 — Each additional hour of 96132
- 96136 — Psychological testing administration by technician, first 30 min
- 96137 — Each additional 30 min of 96136
Neuropsychological testing is frequently required by schools or employers to document ADHD. Prior authorization is almost always required for 96130–96133. Submit a comprehensive referral letter with clinical justification.
Insurance Coverage for ADHD Evaluations
Full ADHD neuropsychological evaluations are covered by most commercial insurers but require PA and are subject to deductibles. Some plans cover evaluations under their mental health benefit; others under a separate diagnostic benefit. Clients should call member services and ask specifically about neuropsychological testing coverage before scheduling.
Documentation for ADHD Claims
To support F90.x billing, your clinical documentation should include:
- A DSM-5 diagnostic summary with criteria met (number of inattentive and/or hyperactive-impulsive symptoms, onset before age 12, present in two or more settings)
- Functional impairment described in concrete terms
- Any standardized rating scales used (Conners, ADHD Rating Scale, etc.)
- Rule-out documentation (anxiety, mood disorders, learning disabilities)