R50.9 Fever, unspecified

Coding Notes

Active
Billable, valid for HIPAA-covered transactions

Applicable To

Fever NOS
Fever of unknown origin [FUO]
Fever with chills
Fever with rigors
Hyperpyrexia NOS
Persistent fever
Pyrexia NOS

GEM Conversion to ICD-9 CM


MDC / MS-DRG Reference


Back Reference of Diagnostic Codes

Elevated, elevation
body temperature (of unknown origin) R50.9
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
ephemeral (of unknown origin) R50.9
intermittent (bilious) See also Malaria
persistent (of unknown origin) R50.9
FUO (fever of unknown origin) R50.9
High
temperature (of unknown origin) R50.9
PUO (pyrexia of unknown origin) R50.9
Pyrexia (of unknown origin) R50.9
Temperature
body, high (of unknown origin) R50.9

Sibling Codes


Parent Sibling Codes


View in Tabular

Code Title
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R50-R69 General symptoms and signs (R50-R69)
R50 Fever of other and unknown origin
R50.9 Fever, unspecified
Applicable to
Fever NOS
Fever of unknown origin [FUO]
Fever with chills
Fever with rigors
Hyperpyrexia NOS
Persistent fever
Pyrexia NOS