B34.9ICD-10-CM

Viral infection, unspecified

Billable

Chapter

A00-B99

Infectious and parasitic

Billable

Yes

Valid as submitted on a claim line

Common pairings

1 CPT code

99213

What the documentation has to carry

A last-resort code. Payers frequently deny it as nonspecific when a site-specific respiratory or enteric code was available.

Commonly paired CPT codes

99213

Pairings are typical, not a coverage determination. Check the payer policy for the line.

Find the specificity
before the payer does

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This page is a free reference for billing and coding teams and is not coding, legal, or clinical advice. Code selection depends on the documentation in the record and on the policy of the payer being billed. Verify every code, instructional note, and sequencing rule against the current ICD-10-CM files and the Official Guidelines for Coding and Reporting for the applicable date of service. ICD-10-CM is maintained by the CDC's National Center for Health Statistics and published by CMS. CPT is a registered trademark of the American Medical Association. TruCare is not affiliated with CMS, NCHS, the AHA, or the AMA.

Viral infection, unspecified

What the documentation has to carry

Find the specificitybefore the payer does

Find the specificity
before the payer does