F91

Conduct disorders

Non-billable header

F91 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • disorders of psychological development
  • Note: Codes within categories F90-F98 may be used regardless of the age of a patient. These disorders generally have onset within the childhood or adolescent years, but may continue throughout life or not be diagnosed until adulthood

Excludes1

Not coded here — never report together with this code.

  • antisocial behavior (Z72.81-)
  • antisocial personality disorder (F60.2)

Excludes2

Not included here — may be reported together when both conditions exist.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
  • conduct problems associated with attention-deficit hyperactivity disorder (F90.-)
  • mood [affective] disorders (F30-F39)
  • pervasive developmental disorders (F84.-)
  • schizophrenia (F20.-)

More specific codes F91

  • F91.0Conduct disorder confined to family contextBillable
  • F91.1Conduct disorder, childhood-onset typeBillable
  • F91.2Conduct disorder, adolescent-onset typeBillable
  • F91.3Oppositional defiant disorderBillable
  • F91.8Other conduct disordersBillable
  • F91.9Conduct disorder, unspecifiedBillable

Related codes

  • F90Attention-deficit hyperactivity disordersHeader
  • F93Emotional disorders with onset specific to childhoodHeader
  • F94Disorders of social functioning with onset specific to childhood and adolescenceHeader
  • F95Tic disorderHeader
  • F98Other behavioral and emotional disorders with onset usually occurring in childhood and adolescenceHeader

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