2025
ICD-10-CM
Diagnosis
Code

R50 Fever of other and unknown origin

Non-billable
2016–2025

R50 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Fever of other and unknown origin.

Type 1 excludes

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

Versions

2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code