A07.3 vs B60
A07.3 and B60 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 B60
isosporiasis (A07.3)
A07.3
Isosporiasis
Billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- A00-A09
Use when the record says
- Infection due to Isospora belli and Isospora hominis
- Intestinal coccidiosis
- Isosporosis
Indexed under
- Coccidiosis (intestinal)
- Isosporiasis, isosporosis
- Colitis › coccidial (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)
- Diarrhea, diarrheal › coccidial (disease) (infantile) (inflammatory)
- Dysentery, dysenteric › coccidial (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)
B60
Other protozoal diseases, not elsewhere classified
Not billable
- Chapter 1
- Certain infectious and parasitic diseases
- Section
- B50-B64
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