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R50.9 - Fever, unspecified


The ICD 10 Code for Fever, unspecified is listed as R50.9.
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: R50.9
Description: Fever, unspecified
  • Fever NOS
  • Fever of unknown origin [FUO]
  • Fever with chills
  • Fever with rigors
  • Hyperpyrexia NOS
  • Persistent fever
  • Pyrexia NOS
Diagnostic Related Groups
(MS-DRG v30.0)
864 - Fever
Chapter Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block General symptoms and signs (R50-R69)
Parent R50 - Fever of other and unknown origin
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 780.60 - Fever, unspecified (approximate)
ICD-10-CM Siblings (same level / similar specificity) of R50.9:
R50.2 - Drug induced fever
R50.8 - Other specified fever