What is the ICD-10 code for viral exanthem rash?

The ICD-10 code for unspecified viral exanthem rash is B09. For specific types like roseola, use B08.21, and for erythema infectiosum, use B08.3.

How do you code a viral rash with no specific virus identified?

Use ICD-10 code B09 for unspecified viral infection characterized by skin lesions when no specific virus is identified.

ICD-10 Coding for Viral Exanthem Rash(B08.21, B05.9, B08.2)

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Learn about ICD-10 coding for viral exanthem rash, including specific codes for roseola and erythema infectiosum, documentation requirements, and common pitfalls.

Also known as:

Viral RashExanthema SubitumRoseola

Related ICD-10 Code Ranges

Complete code families applicable to Viral Exanthem Rash

A00-B99Primary Range

Certain infectious and parasitic diseases

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
B08.21	Roseola infantum, HHV-6 confirmed	Use when HHV-6 is confirmed as the cause of roseola.	HHV-6 PCR positive Sudden fever resolution followed by rash
B08.3	Erythema infectiosum	Use when erythema infectiosum is confirmed, typically with 'slapped cheek' appearance.	Parvovirus B19 IgM positive 'Slapped cheek' rash appearance
B09	Unspecified viral infection characterized by skin and mucous membrane lesions	Use when the specific viral cause of the rash is not identified.	Generalized rash without specific viral identification

Primary ICD-10-CM Codes

Exanthema subitum [sixth disease] due to human herpesvirus 6

B08.21Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Measles, unspecifiedB05.9

Unspecified viral infection with skin lesionsB09

Roseola infantum, HHV-6 confirmedB08.21

Documentation & Coding Risks

Avoid these common issues when documenting Viral Exanthem Rash.

Lack of specific viral identification

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Increases risk of audit and compliance issues., Financial: Potential for reduced reimbursement.

Mitigation

Ensure thorough documentation of clinical findings, Request laboratory confirmation when possible

Using B09 when specific viral exanthem is documented

Impact

Reimbursement: May lead to lower DRG assignment and reimbursement., Compliance: Increases risk of audit due to unspecified coding., Data Quality: Reduces specificity and accuracy of health records.

Mitigation

Use specific codes like B08.21 or B08.3 when the virus is identified.

Unspecified coding

Impact

Using B09 without attempting to identify specific viral cause.

Mitigation

Encourage detailed documentation and laboratory testing.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with B08.21.

Primary Code

B08.21

Exanthema subitum [sixth disease] due to human herpesvirus 6

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ICD-10 codes4

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ICD-10 Coding for Viral Exanthem Rash(B08.21, B05.9, B08.2)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for viral exanthem rash?

How do you code a viral rash with no specific virus identified?

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