A07.3
Isosporiasis
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
A00-B99chapter
Excludes1
- certain localized infections - see body system-related chapters
Excludes2
- carrier or suspected carrier of infectious disease (Z22.-)Z22.-
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
- infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
- influenza and other acute respiratory infections (J00-J22)J00-J22
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 5
Index entries leading here 8
- Infestation B88.9
- coccidial A07.3
- Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9
- coccidial A07.3
- Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
- coccidial A07.3
- Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical) A09
- coccidial A07.3
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
- coccidial A07.3
- Coccidiosis (intestinal) A07.3
- Infection, infected, infective (opportunistic) B99.9
- Isospora belli or hominis A07.3
- Isosporiasis, isosporosis A07.3
Alongside this code 6 same parent — A07
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.