ICD-10-CM 2027 diagnosis code

A07Other protozoal intestinal diseases

Not billable — use a more specific code

A07 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A07

A07 is the ICD-10-CM diagnosis code for other protozoal intestinal diseases. It belongs to block A00-A09 (intestinal infectious diseases) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: A07.0 (Balantidiasis), A07.1 ([lambliasis]), A07.2 (Cryptosporidiosis), A07.3 (Isosporiasis), A07.4 (Cyclosporiasis), A07.8 (diseases) and A07.9 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A07

Notes that apply from higher levels

Instructions written at a parent level also apply to A07.

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference A07

A06Excludes1

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about A07

Is A07 billable?: No. A07 is a header code. Report one of its more specific subcodes instead.