
Excludes
- Chills without fever (R68.83)
- Febrile convulsions (R56.0-)
- Fever of unknown origin during labor (O75.2)
- Fever of unknown origin in newborn (P81.9)
- Hypothermia due to illness (R68.0)
- Malignant hyperthermia due to anesthesia (T88.3)
- Puerperal pyrexia NOS (O86.4)
- R50
- R50.2
- R50.8
- R50.81
- R50.82
- R50.83
- R50.84
- R50.9
| Fever of other and unknown origin |
| Drug induced fever |
| Other specified fever |
| Fever presenting with conditions classified elsewhere |
| Postprocedural fever |
| Postvaccination fever |
| Febrile nonhemolytic transfusion reaction |
| Fever, unspecified |