Other protozoal intestinal diseases (A07) ICD-10-CM
The A07 code range covers other protozoal intestinal diseases with 8 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the A07 Range 8 codes · 7 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A07 range.
Balantidiasis
Infection by parasites of the genus BALANTIDIUM. The presence of Balantidium in the LARGE INTESTINE leads to DIARRHEA; DYSENTERY; and occasionally ULCER.
Cryptosporidiosis
Intestinal infection with organisms of the genus CRYPTOSPORIDIUM. It occurs in both animals and humans. Symptoms include severe DIARRHEA.
Cyclosporiasis
Infection with parasitic protozoa of the genus CYCLOSPORA. It is distributed globally and causes a diarrheal illness. Transmission is waterborne.
Giardiasis
An infection of the SMALL INTESTINE caused by the flagellated protozoan GIARDIA. It is spread via contaminated food and water and by direct person-to-person contact.
Isosporiasis
Infection with parasitic protozoa of the genus ISOSPORA, producing intestinal disease. It is caused by ingestion of oocysts and can produce tissue cysts.
Sarcocystosis
Infection of the striated muscle of mammals by parasites of the genus SARCOCYSTIS. Disease symptoms such as vomiting, diarrhea, muscle weakness, and paralysis are produced by sarcocystin, a toxin produced by the organism.
About the A07 Code Range
Protozoa are parasites that can cause intestinal disease, including inflammation of the colon or small intestine.
A07 separates named diseases rather than body sites. Its subdivisions identify balantidiasis, giardiasis, cryptosporidiosis, isosporiasis, and cyclosporiasis. A07.8 identifies another specified protozoal intestinal disease; A07.9 identifies one that is unspecified.
Questions About This Page
How many billable codes are in the A07 range?
Of the 8 codes in this range, 7 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A07 range classify?
The range classifies other protozoal intestinal diseases. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
