Intestinal microbial overgrowth

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2024 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

K63.821 Small intestinal bacterial overgrowth (also a header)
K63.822 Small intestinal fungal overgrowth
K63.829 Intestinal methanogen overgrowth, unspecified

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Gastrointestinal mucositis (ulcerative)
FY2010 Removed from the draft draft
FY2024 Added to the code set Intestinal microbial overgrowth

Codes in the same group

Code	Description	Status
K63.81	Dieulafoy lesion of intestine	Valid
K63.89	Other specified diseases of intestine	Valid