F91
Non-billableConduct disorders
Conduct disorders
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- disorders of psychological development
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Child Codes (6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(13)
UMLS
- CONDUCT DISC0149654
- Conduct DisorderC0149654
- Conduct DisordersC0149654
- Conduct behavior disorderC0149654
- Conduct behaviour disorderC0149654
- Conduct disorderC0149654
- Conduct disorder (disorder)C0149654
- Conduct disorder NOSC0149654
- Conduct disorder, unspecifiedC0149654
- Conduct disordersC0149654
- Unspecified disturbance of conductC0149654
- conduct disorderC0149654
- conduct disordersC0149654
Frequently Asked Questions
What is the ICD-10 code for conduct disorders?
The ICD-10-CM code for conduct disorders is F91. The full clinical description is "Conduct disorders". F91 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code F91 mean?
ICD-10-CM code F91 represents “Conduct disorders”. It is classified under Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders and is a non-billable header code. Use a more specific child code for billing purposes.
Is F91 a billable code?
No, F91 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under F91.
What chapter is F91 in?
F91 is in Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (codes F01-F99).
What codes cannot be used with F91?
F91 has Excludes1 notes indicating codes that cannot be used together with it, including: antisocial behavior (Z72.81-); antisocial personality disorder (F60.2).
What are the subcategories under F91?
F91 has 6 child codes, including: 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), and 2 more.
What are the UMLS CUIs for F91?
F91 is linked to 1 UMLS Concept Unique Identifier: C0149654. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does F91 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like conduct disorders affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of F91?
F91 maps to the ICD-11 code: 6C91.Z (Conduct-dissocial disorder, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.