ICD-10: R50
Fever of other and unknown origin
Coding Guidelines
Excludes 1
- hypothermia due to illness (R68.0)
- chills without fever (R68.83)
- fever of unknown origin during labor (O75.2)
- puerperal pyrexia NOS (O86.4)
- fever of unknown origin in newborn (P81.9)
- malignant hyperthermia due to anesthesia (T88.3)
- febrile convulsions (R56.0-)
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