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Home/Diagnosis/ICD-10 Coding for Febrile Illness

ICD-10 Coding for Febrile Illness

R50.9
R50.81
A41.9

Complete ICD-10-CM coding and documentation guide for icd-10 coding for febrile illness includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Fever
Pyrexia
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Key Information: ICD-10 Coding for Febrile Illness

Essential facts and insights about ICD-10 Coding for Febrile Illness

Use ICD-10 code R50.9 for fever, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Fever, unspecified

Billable Code
R50.9
Billable

Diagnostic Criteria

clinical_criteria:
  • Temperature ≥38°C with no identified cause

Applicable To

  • • Fever NOS

Important Notes

  • • Ensure no specific cause is documented before using this code.

Fever presenting with conditions classified elsewhere

Billable Code
R50.81
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • Documented causal relationship between fever and another condition

Applicable To

  • • Fever secondary to another condition

Important Notes

  • • Sequence after the primary condition code.

Sepsis, unspecified organism

Billable Code
A41.9
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • SIRS criteria met with confirmed/suspected infection

Applicable To

  • • Septicemia NOS

Important Notes

  • • Always sequence first if sepsis is present on admission.
Frequently Asked Questions

What is the ICD-10 code for unspecified fever?

The ICD-10 code for unspecified fever is R50.9. It is used when no specific cause for the fever is identified.

How should fever be documented for ICD-10 coding?

Fever should be documented with maximum temperature, duration, and any associated symptoms or conditions to ensure accurate ICD-10 coding.

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