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R50 - Fever of other and unknown origin


The ICD 10 Code for Fever of other and unknown origin is listed as R50.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: R50
Description: Fever of other and unknown origin
  • Excludes1: 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)
Chapter Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
ICD-10-CM Children (deeper level / typically more specific) of R50:
R50.2 - Drug induced fever
R50.8 - Other specified fever
R50.9 - Fever, unspecified