AutoICD API

R50

Non-billable

Fever of other and unknown origin

Fever of other and unknown origin

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

R50-R69

Child Codes

3

Coding Notes

Excludes 1

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

  • 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)

Excludes 2

Conditions not included here, but the patient may have both

  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Child Codes (3)

R50.2

Drug induced fever

BillableR50.8

Other specified fever

R50.9

Fever, unspecified

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code R50?

ICD-10-CM code R50 represents "Fever of other and unknown origin". It is a non-billable header code — use a more specific child code for billing purposes.

Is R50 a billable code?

No, R50 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under R50.

What chapter is R50 in?

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

What codes cannot be used with R50?

R50 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 are the subcategories under R50?

R50 has 3 child codes, including: R50.2 (Drug induced fever), R50.8 (Other specified fever), R50.9 (Fever, unspecified).

What are the UMLS CUIs for R50?

R50 is linked to 1 UMLS Concept Unique Identifier: C2830447. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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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.