ICD-10 Code F90.9: Attention-deficit hyperactivity disorder, unspecified type
Mental and behavioural disorders
ICD-10 code F90.9 identifies ADHD without specification of the predominant presentation type.
Coding guidance
The F90 category specifies presentation: predominantly inattentive (F90.0), predominantly hyperactive (F90.1), combined type (F90.2) and other/unspecified.
Documentation should support the predominant presentation whenever established.
Diagnosis requires symptoms present in more than one setting with functional impairment.
Documentation and specificity notes
- Specify presentation type whenever evaluation supports it.
- Document symptoms across multiple settings and functional impact.
- Supports medical necessity for stimulant prescribing and behavioral therapy.
Related codes
This page provides a general summary for educational purposes and is not a substitute for the official ICD-10-CM code set, the ICD-10-CM Official Guidelines for Coding and Reporting, or payer policy. Code sets are updated annually, verify against the current official release before billing.
FAQ
ICD-10 F90.9, frequently asked questions questions
- What is ICD-10 code F90.9?
- ICD-10 code F90.9 identifies ADHD without specification of the predominant presentation type.
- Is F90.9 a billable ICD-10 code?
- Yes. F90.9 is a billable and specific ICD-10-CM code that may be used to indicate a diagnosis for reimbursement purposes, provided documentation supports it.
- What documentation supports F90.9?
- Specify presentation type whenever evaluation supports it. Document symptoms across multiple settings and functional impact. Supports medical necessity for stimulant prescribing and behavioral therapy.
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