ICD-10 Code F90.2 – Attention-deficit hyperactivity disorder, combined type (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F90.2 – Attention-deficit hyperactivity disorder, combined type
What it is
F90.2 identifies attention-deficit hyperactivity disorder with both inattentive and hyperactive-impulsive symptoms. Use it when the record shows a combined presentation rather than predominantly inattentive or predominantly hyperactive-impulsive features.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see distractibility, disorganization, forgetfulness, fidgeting, excessive activity, impulsive actions, and difficulty sustaining attention across settings.
When to use this code
Use this code when the clinician documents ADHD, combined type, or clearly describes both inattentive and hyperactive-impulsive symptoms. It is appropriate for established diagnoses in outpatient, inpatient, or school-related behavioral evaluations. Check documentation if the presentation is not explicitly combined.
Do not use for
Do not use F90.2 when the record supports only predominantly inattentive or only predominantly hyperactive-impulsive ADHD. Do not assign it if the diagnosis is uncertain or if documentation says to check the chart.
Coding tip
Code the documented ADHD subtype exactly as stated, and verify that both symptom domains are present before selecting F90.2.