ICD-10-CM › R00-R99 › R50-R69 › R50 Fever of other and unknown origin › R50.8

R50.8

Other specified fever

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

  • R50.81 Fever presenting with conditions classified elsewhere
  • R50.82 Postprocedural fever
  • R50.83 Postvaccination fever
  • R50.84 Febrile nonhemolytic transfusion reaction

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2007 Added to the draft code set draft Other specified fever
  2. FY2010 Removed from the draft draft
  3. FY2012 Returned to the draft draft

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from R50 Fever of other and unknown origin

Excludes1 - never coded here

  • 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)

Codes in the same group

CodeDescriptionStatus
R50.2 Drug induced fever Valid
R50.9 Fever, unspecified Valid