Cyst of oral region, unspecified

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

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 Cyst of oral region, unspecified

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 K09 Cysts of oral region, not elsewhere classified

Excludes2 - not included here

cysts of jaw (M27.0-, M27.4-)
radicular cyst (K04.8)

Includes

lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Lump
Retained
Cyst > oral > region
Cyst > oral > soft tissue

Codes in the same group

Code	Description	Status
K09.0	Developmental odontogenic cysts	Valid
K09.1	Developmental (nonodontogenic) cysts of oral region	Valid
K09.8	Other cysts of oral region, not elsewhere classified	Valid