ICD-10-CM F91: Conduct disorders

ICD-10-CM Diagnosis Code (2025)

Official Description for F91

Conduct disorders

Coding Notes & Guidelines for F91

Excludes1: Not Coded Here
  • antisocial behavior (Z72.81-)
  • antisocial personality disorder (F60.2)
Excludes2: Not Included Here
  • conduct problems associated with attention-deficit hyperactivity disorder (F90.-)
  • mood [affective] disorders (F30-F39)
  • pervasive developmental disorders (F84.-)
  • schizophrenia (F20.-)
Inclusion Terms
  • Unsocialized conduct disorder
  • Conduct disorder, solitary aggressive type
  • Unsocialized aggressive disorder
Inclusion Terms
  • Socialized conduct disorder
  • Conduct disorder, group type
Inclusion Terms
  • Other specified conduct disorder
  • Other specified disruptive disorder
Inclusion Terms
  • Behavioral disorder NOS
  • Conduct disorder NOS
  • Disruptive behavior disorder NOS
  • Disruptive disorder NOS

Child Codes (More Specific Codes for F91):

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

About ICD-10-CM Code F91 (Conduct disorders)

ICD-10-CM code F91 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM F91 became effective on October 1, 2024.

This page provides detailed information about F91 - Conduct disorders. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Conduct disorders.