R50.8 – Other specified fever

ICD-10-CM 2027 diagnosis code · General symptoms and signs

Non-billable header

ICD-10-CM code R50.8

Code: R50.8 (claims format: R508)
Description: Other specified fever
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R50-R69 General symptoms and signs
Parent codes: R50

Billable codes under R50.8

R50.8 is a header code and cannot be used on claims. Choose the most specific code:

R50.81 – Fever presenting with conditions classified elsewhereBillable
R50.82 – Postprocedural feverBillable
R50.83 – Postvaccination feverBillable
R50.84 – Febrile nonhemolytic transfusion reactionBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R50 – Fever of other and unknown origin

Excludes1 (not 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)

Related codes in R50

R50.2 – Drug induced feverBillable
R50.9 – Fever, unspecifiedBillable

Frequently asked questions

What is ICD-10 code R50.8?

R50.8 is the ICD-10-CM code for other specified fever, in the block R50-R69 (General symptoms and signs).

Is R50.8 a billable code?

No. R50.8 is a header code with more specific child codes; report one of the billable codes listed above.

What category does R50.8 belong to?

It belongs to category R50 – Fever of other and unknown origin.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.