ICD-10-CM code F91.1 describes conduct disorder, childhood-onset type. Repetitive, persistent behavior violating rights of others/norms, onset before age 10. It is a billable, specific code valid for claim submission. It is grouped under the “Child & Adolescent Disorders” section of the mental, behavioral, and neurodevelopmental disorders chapter.
When to use F91.1
This group covers ADHD, conduct, oppositional defiant, attachment, tic, and elimination disorders with onset in childhood or adolescence, though the codes may be used regardless of current age. Select the presentation or type the documentation supports. For F91.1 specifically, repetitive, persistent behavior violating rights of others/norms, onset before age 10.
Documentation & billing
Document the presentation (for ADHD), the onset type (for conduct disorder), and the symptom profile. Note the age of onset where it is clinically relevant.
Common pitfalls
- Using unspecified ADHD (F90.9) when the inattentive, hyperactive, or combined presentation is documented.
- Confusing conduct disorder with oppositional defiant disorder.
- Recording childhood-onset versus adolescent-onset conduct disorder incorrectly.
Common search terms for F91.1
Clinicians often look up F91.1 using plain-language terms. This code maps to:
Frequently asked questions
What is ICD-10-CM code F91.1?
Conduct disorder, childhood-onset type. Repetitive, persistent behavior violating rights of others/norms, onset before age 10.
Is F91.1 a billable ICD-10-CM code?
Yes. F91.1 (Conduct disorder, childhood-onset type) is a billable, specific ICD-10-CM code that can be reported on a claim. Confirm the current official descriptor against the CDC code set and your payer’s policies before submitting.
What should I document to support F91.1?
Document the presentation (for ADHD), the onset type (for conduct disorder), and the symptom profile. Note the age of onset where it is clinically relevant.