R50.8

Non-Billable

ChapterR00–R99

Ranksubcategory

Official Description

Other specified fever

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

General instructions are available for the parent sections:

View CH18 Notes View R50 Notes

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R50-R69General symptoms and signs (R50-R69)

R50Fever of other and unknown origin

R50.8Other specified fever

R50.81Fever presenting with conditions classified elsewhere

R50.82Postprocedural fever

R50.83Postvaccination fever

R50.84Febrile nonhemolytic transfusion reaction

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R50.8:

categoryR50

Fever of other and unknown origin

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R50.8. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

9 raw paths

Complication (s) (from) (of)1 unique routes

transfusion (blood) (lymphocytes) (plasma)

febrile nonhemolytic transfusion reaction→R50.8

Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)6 unique routes

due to

conditions classified elsewhere→R50.8

postimmunization→R50.8

postoperative→R50.8

posttransfusion→R50.8

postvaccination→R50.8

presenting with conditions classified elsewhere→R50.8