ICD-10-CM Code R50
Fever of other and unknown origin
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.ICD Code R50 is a non-billable code. To code a diagnosis of this type, you must use one of the three child codes of R50 that describes the diagnosis 'fever of other and unknown origin' in more detail.
- R50 Fever of other and unknown origin NON-BILLABLE
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- BILLABLE R50.2 Drug induced fever
- BILLABLE R50.9 Fever, unspecified
The ICD code R50 is used to code Fever
Fever, also known as pyrexia and febrile response, is defined as having a temperature above the normal range due to an increase in the body's temperature set-point. There is not a single agreed-upon upper limit for normal temperature with sources using values between 37.5 and 38.3 °C (99.5 and 100.9 °F). The increase in set-point triggers increased muscle contraction and causes a feeling of cold. This results in greater heat production and efforts to conserve heat. When the set-point temperature returns to normal a person feels hot, becomes flushed, and may begin to sweat. Rarely a fever may trigger a febrile seizure. This is more common in young children. Fevers do not typically go higher than 41 to 42 °C (105.8 to 107.6 °F).
| Specialty: | Infectious Disease, Pediatrics |
| MeSH Code: | D005334 |
| ICD 9 Code: | 780.6 |
An analog medical thermometer showing a temperature of 7002311950000000000♠38.8 °C or 7002311927777777777♠101.8 °F
Coding Notes for R50 Info for medical coders on how to properly use this ICD-10 code
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Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here." - Chills without fever - instead, use code R68.83
- Febrile convulsions - instead, use code R56.0-
- Fever of unknown origin during labor - instead, use code O75.2
- Fever of unknown origin in newborn - instead, use code P81.9
- Hypothermia due to illness - instead, use code R68.0
- Malignant hyperthermia due to anesthesia - instead, use code T88.3
- Puerperal pyrexia NOS - instead, use code O86.4
ICD-10-CM Alphabetical Index References for 'R50 - Fever of other and unknown origin'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code R50. Click on any term below to browse the alphabetical index.