2021 ICD-10-CM Code R50.81
Fever presenting with conditions classified elsewhere
Valid for Submission
R50.81 is a billable diagnosis code used to specify a medical diagnosis of fever presenting with conditions classified elsewhere. The code R50.81 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code R50.81 might also be used to specify conditions or terms like brass-founders' fever, copper fever, copper poisoning, covid-19, double quotidien fever , febrile granulocytopenia, etc.
According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
| ICD-10: | R50.81 |
| Short Description: | Fever presenting with conditions classified elsewhere |
| Long Description: | Fever presenting with conditions classified elsewhere |
Code Classification
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code R50.81:
Code First
Code FirstCertain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code R50.81 are found in the index:
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Brass-founders' fever
- Copper fever
- Copper poisoning
- COVID-19
- Double quotidien fever
- Febrile granulocytopenia
- Febrile leukopenia
- Febrile neutropenia
- Fever caused by Severe acute respiratory syndrome coronavirus 2
- Granulocytopenic disorder
- Intermittent fever
- Intermittent fever
- Intermittent hepatic fever
- Malarial fever
- Malignant tertian fever
- Metal fever
- Paraneoplastic fever
- Polymer fume fever
- Quartan fever
- Quotidien fever
- Tertian fever
- Toxic inhalation-induced febrile illness
- Welders ague
Convert R50.81 to ICD-9 Code
- 780.61 - Fever in other diseases
Information for Patients
Fever
Also called: Pyrexia
A fever is a body temperature that is higher than normal. A normal temperature can vary from person to person, but it is usually around 98.6 F. A fever is not a disease. It is usually a sign that your body is trying to fight an illness or infection.
Infections cause most fevers. You get a fever because your body is trying to kill the virus or bacteria that caused the infection. Most of those bacteria and viruses do well when your body is at your normal temperature. But if you have a fever, it is harder for them to survive. Fever also activates your body's immune system.
Other causes of fevers include
- Medicines, including some antibiotics, blood pressure medicines, and anti-seizure medicines
- Heat illness
- Cancers
- Autoimmune diseases
- Some childhood immunizations
Treatment depends on the cause of your fever. If the fever is very high, your health care provider may recommend taking an over-the-counter medicine such as acetaminophen or ibuprofen. Adults can also take aspirin, but children with fevers should not take aspirin. It is also important to drink enough liquids, to prevent dehydration.
- Familial Mediterranean fever (Medical Encyclopedia)
- Fever (Medical Encyclopedia)
- When your baby or infant has a fever (Medical Encyclopedia)
[Learn More]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)