| ICD-10-CM-2023 > R00-R99 > R50-R69 > R50 |
R50-R69 | General symptoms and signs | |
R50 | Fever of other and unknown origin | |
Excl1.: | 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) | |
R50.2 | Drug induced fever | |
Use add'l | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) | |
Excl1.: | postvaccination (postimmunization) fever (R50.83) | |
R50.8 | Other specified fever | |
R50.81 | Fever presenting with conditions classified elsewhere | |
Code first | underlying condition when associated fever is present, such as with: leukemia (C91-C95) neutropenia (D70.-) sickle-cell disease (D57.-) | |
R50.82 | Postprocedural fever | |
Excl1.: | postprocedural infection (T81.4-) posttransfusion fever (R50.84) postvaccination (postimmunization) fever (R50.83) | |
R50.83 | Postvaccination fever | |
Info: | Postimmunization fever | |
R50.84 | Febrile nonhemolytic transfusion reaction | |
Info: | FNHTR Posttransfusion fever | |
R50.9 | Fever, unspecified | |
Info: | Fever NOS Fever of unknown origin [FUO] Fever with chills Fever with rigors Hyperpyrexia NOS Persistent fever Pyrexia NOS | |
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