General symptoms and signs (R50-R69)
R50: Fever of other and unknown origin

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)
R50.2: Drug induced fever
R50.8: Other specified fever
R50.9: Fever, unspecified

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