B07 vs B33.8
B07 and B33.8 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on B33.8
viral warts due to human papillomavirus infection (B07)
B07
Viral warts
Not billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B00-B09
Use when the record says
- verruca simplex
- verruca vulgaris
- viral warts due to human papillomavirus
B33.8
Other specified viral diseases
BillableUnspecified
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B25-B34
Indexed under
- Aujeszky's disease
- Tahyna fever
- Coxsackie › specific disease NEC (virus) (infection)
- Fever › Tahyna (inanition) (of unknown origin) (persistent) (with chills) (with rigor)
- Lymphocytosis › infectious (symptomatic)
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027