2026 ICD-10-CM Diagnosis Code F90
Code details
Code attributes
- Non-billable/Non-specific code
Coding rules
- Specify presentation — Inattentive (F90.0), hyperactive-impulsive (F90.1), or combined (F90.2) — match the DSM-5-TR criteria documented in your evaluation.
- Document onset — Symptoms must be present before age 12 and in two or more settings (e.g., home and school).
- Avoid F90.9 if possible — Unspecified is a placeholder. With a structured evaluation (e.g., Vanderbilt, Conners), use a specific subtype.
Clinical information
F90 covers ADHD subtypes. F90.0 (predominantly inattentive), F90.1 (predominantly hyperactive-impulsive), F90.2 (combined), F90.8 (other), F90.9 (unspecified). Specificity matters for both treatment planning and medication management.
Codes
5 codes in F90- F90.0Attention-deficit hyperactivity disorder, predominantly inattentive type
- F90.1Attention-deficit hyperactivity disorder, predominantly hyperactive type
- F90.2Attention-deficit hyperactivity disorder, combined type
- F90.8Attention-deficit hyperactivity disorder, other type
- F90.9Attention-deficit hyperactivity disorder, unspecified type
Sources
- Centers for Medicare & Medicaid Services — 2026 ICD-10-CM
- AAPC — ICD-10-CM Code Lookup
- CDC — ICD-10-CM Official Guidelines for Coding and Reporting
This reference is provided for billing and documentation guidance only. It is not medical advice. For clinical decision-making, consult the current CMS ICD-10-CM Official Guidelines for Coding and Reporting, and verify code applicability against the patient's documented clinical findings.
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