Quick reference

When to use: Use F90.1 when the client meets diagnostic criteria for ADHD, Predominantly Hyperactive-Impulsive Presentation. For ADHD, confirm symptom presence before age 12. For ASD, document early developmental history. Obtain collateral information when possible.
Duration: These are chronic, lifelong conditions. ADHD symptoms must have been present before age 12 with current impairment in 2+ settings. ASD symptoms must be present in early development. Reassess annually for treatment planning.
Session codes: Pair with CPT 90791 (comprehensive evaluation), 90834/90837 (therapy), 96127 (screening tools like Vanderbilt, ASRS). Neuropsychological testing: 96136/96137. Parent training: 90847.
Key indicators: ADHD: inattention, hyperactivity, impulsivity across settings • ASD: social communication deficits, restricted/repetitive behaviors • Onset in developmental period • Functional impairment across settings

What F90.1 represents

This presentation features predominant hyperactivity and impulsivity. More common in younger children and may transition to combined type over time.

Document specific hyperactive-impulsive symptoms, settings, onset, and impairment.

Distinguish from anxiety-related restlessness, bipolar disorder, oppositional defiant disorder, and normal developmental energy.

Behavioral interventions, medication management, environmental modifications, parent training.

Accepted code. Document symptom severity and functional impact.

Same changes as other ADHD codes regarding age of onset.

Don't pathologize normal childhood energy. Ensure symptoms are inappropriate for developmental level.

American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.).