AutoICD API

R50.81

Billable

Fever presenting with conditions classified elsewhere

Fever presenting with conditions classified elsewhere

Status

Billable / Specific

Block

R50-R69

Parent Code

R50.8

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Code First

The underlying condition must be sequenced before this code

Related Codes(3)
R50.82

Postprocedural fever

BillableR50.83

Postvaccination fever

BillableR50.84

Febrile nonhemolytic transfusion reaction

Billable
Also Known As / Clinical Terms(111)

SNOMED CT

UMLS

Clinical Terms

  • Febrile leucopenia
  • Anasarca
  • Malarial fever
  • The smothers
  • Disease caused by severe acute respiratory syndrome coronavirus 2
  • Intermittent fever
  • Fever caused by 2019-nCoV
  • Quartan fever
  • Brass-founders' disease
  • Granulocytopenic disorder
  • Brass-founders' fever
  • Febrile leukopenia
  • Charcot's fever
  • Copper fever
  • Febrile neutropenia
  • Foundrymen's fever
  • Acute hepatic failure
  • Disease caused by 2019 novel coronavirus
  • Granulocytopenia
  • Brass founders ague
  • COVID-19
  • Disease caused by SARS-CoV-2
  • Monday morning fever
  • Periodic fever, not disease
  • Quotidien fever
  • Brass poisoning
  • Neutropenic fever
  • Tertian fever
  • Metal-fume fever
  • Picket fence fever
  • Paraneoplastic fever
  • TAFRO syndrome
  • Febrile granulocytopenia
  • Braziers' disease
  • Fever-associated acute infantile liver failure syndrome
  • Metal fever
  • Neutropaenic fever
  • Double quotidien fever
  • Fever caused by severe acute respiratory syndrome coronavirus 2
  • Foundry syndrome
  • Disease caused by 2019-nCoV
  • Brass fever
  • Fever caused by 2019 novel coronavirus
  • Fever caused by SARS-CoV-2
  • TAFRO (thrombocytopenia, anasarca, fever, renal insufficiency, organomegaly) syndrome
  • Monday fever
  • Thrombocytopenia, anasarca, fever, renal insufficiency, organomegaly syndrome
  • Polymer fume fever
  • Teflon shakes
  • Malignant tertian fever
  • Acute liver failure
  • Intermittent hepatic fever
  • Toxic inhalation-induced febrile illness
  • ALF - Acute liver failure
  • Metal fume fever
Frequently Asked Questions
What is the ICD-10 code for fever presenting with conditions classified elsewhere?

The ICD-10-CM code for fever presenting with conditions classified elsewhere is R50.81. The full clinical description is "Fever presenting with conditions classified elsewhere". R50.81 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code R50.81 mean?

ICD-10-CM code R50.81 represents “Fever presenting with conditions classified elsewhere”. It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.

Is R50.81 a billable code?

Yes, R50.81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R50.81 in?

R50.81 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R50.81?

R50.81 has Excludes1 notes indicating codes that cannot be used together with it, including: chills without fever (R68.83); febrile convulsions (R56.0-); fever of unknown origin during labor (O75.2); and 4 more.

What SNOMED CT codes does R50.81 map to?

R50.81 maps to 24 SNOMED CT concepts: 197270009, 442433009, 74800004, 840539006, 248443002, and 19 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R50.81?

R50.81 is linked to 1 UMLS Concept Unique Identifier: C2349670. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does R50.81 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like fever presenting with conditions classified elsewhere affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of R50.81?

There is no direct ICD-11 mapping available for R50.81 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.