ICD-10-CM F90.0
ICD-10 Code F90.0: ADHD, predominantly inattentive type
F90.0 is the ICD-10-CM code for attention-deficit hyperactivity disorder, predominantly inattentive type. DSM-5-TR calls this the predominantly inattentive presentation.
- Official description
- Attention-deficit hyperactivity disorder, predominantly inattentive type
- Billable
- Yes
- Parent category
- F90 · Attention-deficit hyperactivity disorders
- DSM-5-TR name
- Attention-deficit/hyperactivity disorder, predominantly inattentive presentation
Verified against the FY2027 ICD-10-CM code set (CDC/NCHS and CMS), effective October 1, 2026 - September 30, 2027, on . Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99).
Coding notes for F90.0
- Inattentive symptoms predominate
- Combined presentation is F90.2 and predominantly hyperactive-impulsive is F90.1
- Update the code if the presentation changes
What to document for medical necessity
Payers look for a record that supports the diagnosis and the level of care. For adhd that usually means:
- The current presentation and the symptoms that support it
- Evidence the symptoms show up in more than one setting, such as home and school or work
- Rating scales or collateral reports from parents, teachers, or partners
- Functional impairment the symptoms cause
- Treatment plan goals and any coordination with a prescriber
CPT codes often billed with F90.0
The ICD-10 code says why you are treating the client and the CPT code says what you did. These are the service codes most often paired with F90.0:
Free templates for this diagnosis
Related ICD-10 codes
Frequently asked questions
What is the ICD-10 code for ADHD inattentive type?
F90.0, Attention-deficit hyperactivity disorder, predominantly inattentive type.
Can therapists bill ADHD codes?
Yes. Any clinician who diagnoses or treats ADHD within their scope can report the code on a psychotherapy claim.
This page is a coding reference, not clinical, diagnostic, billing, or legal advice. The diagnosis is the treating clinician's call, and payer rules vary - always confirm against the current ICD-10-CM code set and official guidelines and your payer's policy. See the full mental health ICD-10 code list.