R50.9
BillableFever, unspecified
R50.9 is the ICD-10-CM code for Fever, unspecified. It is a billable, specific code valid for reimbursement.
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Includes
- •Fever NOS
- •Fever of unknown origin [FUO]
- •Fever with chills
- •Fever with rigors
- •Hyperpyrexia NOS
- •Persistent fever
- •Pyrexia NOS
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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