B47.0 vs B48.2
B47.0 and B48.2 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 B48.2
eumycetoma (B47.0)
B47.0
Eumycetoma
Billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B35-B49
Use when the record says
- Madura foot, mycotic
- Maduromycosis
Indexed under
- Eumycetoma
- Maduromycosis
- Infection, infected, infective › Acremonium falciforme (opportunistic)
- Infection, infected, infective › Ascomycetes (opportunistic)
- Infection, infected, infective › Cephalosporium falciforme (opportunistic)
B48.2
Allescheriasis
Billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B35-B49
Use when the record says
- Infection due to Pseudallescheria boydii
Indexed under
- Allescheriasis
- Petrellidosis
- Infection, infected, infective › Allescheria boydii (opportunistic)
- Infection, infected, infective › Monosporium apiospermum (opportunistic)
- Infection, infected, infective › Petriellidium boydii (opportunistic)
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