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Home/Diagnosis/ICD-10 Coding for Viral Exanthem

ICD-10 Coding for Viral Exanthem

B09
B08.20

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

Also Known as:
Viral Rash
Viral Skin Eruption
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Key Information: ICD-10 Coding for Viral Exanthem

Essential facts and insights about ICD-10 Coding for Viral Exanthem

Use ICD-10 code B09 for unspecified viral infection with skin and mucous membrane lesions, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Unspecified viral infection with skin and mucous membrane lesions

Billable Code
B09
Billable

Diagnostic Criteria

clinical:
  • • Presence of generalized maculopapular rash without specific viral identification
coding:
  • • Absence of specific viral identification in laboratory tests
documentation:
  • • Detailed description of rash and associated symptoms

Applicable To

  • • Viral exanthem NOS
  • • Viral enanthema NOS

Important Notes

  • • Ensure documentation specifies the presence of skin and mucous membrane lesions and any associated symptoms.

Exanthema subitum [sixth disease]

Billable Code
B08.20
Billable

Diagnostic Criteria

clinical:
  • • Sudden fever followed by rash
  • • Nagayama spots
  • • PCR confirmation of HHV-6

Applicable To

  • • Roseola infantum

Important Notes

  • • Document the sequence of fever and rash onset, and any confirmatory lab results.
Ancillary Codes

Additional codes that may be used with this diagnosis

R21

Rash and other nonspecific skin eruption

Use alongside B09 to document nonspecific rash.

Frequently Asked Questions

What is the ICD-10 code for viral exanthem?

The ICD-10 code for unspecified viral exanthem is B09. Use this code when the specific virus causing the exanthem is not identified.

When should B09 be used for viral exanthem?

B09 should be used when a viral exanthem is present but the specific virus is not identified through testing.

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