ICD-10-CM · FY 2026 APRIL UPDATE
F91
Conduct disorders
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| F91.0 | Conduct disorder confined to family context | Billable |
| F91.1 | Conduct disorder, childhood-onset type | Billable |
| F91.2 | Conduct disorder, adolescent-onset type | Billable |
| F91.3 | Oppositional defiant disorder | Billable |
| F91.8 | Other conduct disorders | Billable |
| F91.9 | Conduct disorder, unspecified | Billable |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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