F91.8 Other conduct disorders

BillableNo payment HCCChapter 5

Check coverage with this diagnosis

Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

Section F90-F98

Notes

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

F91

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Excludes2Not included here: the patient may have both; report both when both are present.

conduct problems associated with attention-deficit hyperactivity disorder (F90.-)
mood [affective] disorders (F30-F39)
pervasive developmental disorders (F84.-)
schizophrenia (F20.-)

This code

Inclusion terms

Other specified conduct disorder
Other specified disruptive disorder

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F90-F98 Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.