R50.9Billable

Fever, unspecified

Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Category
R50
Effective date
October 1, 2026

Related codes in category R50

R50Fever of other and unknown originR50.2Drug induced feverYesR50.8Other specified feverR50.81Fever presenting with conditions classified elsewhereYesR50.82Postprocedural feverYesR50.83Postvaccination feverYesR50.84Febrile nonhemolytic transfusion reactionYes

Frequently asked questions

What is ICD-10 code R50.9?

R50.9 is an ICD-10-CM diagnosis code for Fever, unspecified.

Is R50.9 a billable code?

Yes. R50.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is R50.9 in?

R50.9 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

When did R50.9 become effective?

R50.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to R50.9?

R50.9 belongs to category R50, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.