ICD-10 Code F90.1 – Attention-deficit hyperactivity disorder, predominantly hyperactive type (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F90.1 – Attention-deficit hyperactivity disorder, predominantly hyperactive type
What it is
F90.1 identifies attention-deficit hyperactivity disorder with a predominantly hyperactive presentation. Use it when the record shows excessive activity, impulsive behavior, or difficulty staying still as the main pattern.
Clinical signs
Typical findings include fidgeting, restlessness, excessive talking, interrupting others, and trouble waiting turns. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents ADHD, predominantly hyperactive type, or a similar hyperactive presentation. It is appropriate when hyperactivity and impulsivity are the main documented concerns, even if inattention is also present. Check documentation if the subtype is unclear.
Do not use for
Do not use this code for inattentive-predominant ADHD, combined presentation, or unspecified ADHD. Also avoid it when hyperactivity is caused by another condition or when the chart does not support an ADHD diagnosis.
Coding tip
Confirm the documented ADHD presentation subtype before assigning F90.1.