F91Conduct disorders
ICD-10-CM category (non-billable header) code — part of Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
Coding Notes
Excludes1 (never code both together)
- antisocial behavior (Z72.81-)
- antisocial personality disorder (F60.2)
Excludes2 (not part of this condition — may code both)
- conduct problems associated with attention-deficit hyperactivity disorder (F90.-)
- mood [affective] disorders (F30-F39)
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
Subcategories (6)
- F91.0 Conduct disorder confined to family context
- F91.1 Conduct disorder, childhood-onset type
- F91.2 Conduct disorder, adolescent-onset type
- F91.3 Oppositional defiant disorder
- F91.8 Other conduct disorders
- F91.9 Conduct disorder, unspecified