Excludes1 pair
A63.0 vs B33.8
A63.0 and B33.8 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
The official note, declared on B33.8
anogenital human papillomavirus infection (A63.0)
A63.0
Anogenital (venereal) warts
Billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- A50-A64
Use when the record says
- Anogenital warts due to (human) papillomavirus [HPV]
- Condyloma acuminatum
Indexed under
- Condyloma
- Condyloma › acuminatum
- Papilloma › acuminatum (female) (male) (anogenital)
- Verruca › acuminata
- Verruca › venereal
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
- Fever › Tahyna
- Lymphocytosis › infectious (acute)
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