F91.3

Oppositional defiant disorder

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 7 never code together

F91code

Excludes1

Excludes2

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

Excludes2

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

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 2

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 adulthoodF90-F98

Includes

Index entries leading here 2

Disorder (of) — see also Disease
- conduct (childhood) F91.9
  - oppositional defiance F91.3
- defiant oppositional F91.3
- oppositional defiant F91.3
Disturbance (s) — see also Disease
- emotions specific to childhood and adolescence F93.9
  - with
    - oppositional disorder F91.3

Alongside this code 5 same parent — F91

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Present FY2024–FY2027.