Microscopic colitis

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, FY2017 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

K52.831 Collagenous colitis
K52.832 Lymphocytic colitis
K52.838 Other microscopic colitis
K52.839 Microscopic colitis, unspecified

What has happened to this code

Every change the publisher made, from 2017 to now.

FY2017 Added to the code set Microscopic colitis

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the K50-K52 section Noninfective enteritis and colitis (K50-K52)

Excludes1 - never coded here

irritable bowel syndrome (K58.-)
megacolon (K59.3-)

Includes

noninfective inflammatory bowel disease

Codes in the same group

Code	Description	Status
K52.81	Eosinophilic gastritis or gastroenteritis	Valid
K52.82	Eosinophilic colitis	Valid
K52.89	Other specified noninfective gastroenteritis and colitis	Valid