Left temporomandibular joint disorder, unspecified

ValidICD-10-CM diagnosis code.

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

Valid FY2017 onwards.

What has happened to this code

Every change the publisher made, from 2017 to now.

FY2017 Added to the code set Left temporomandibular joint disorder, 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 the M26-M27 section Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)

Excludes1 - never coded here

hemifacial atrophy or hypertrophy (Q67.4)
unilateral condylar hyperplasia or hypoplasia (M27.8)

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.

Cleft
Extra
Fused
Patent
Trifid
Triple
Window
Aplasia
Aberrant
Patulous
Abnormity
Asymmetry
Dysplasia
Additional
Lobulation
Nonclosure
Nondescent
Fold, folds
Rudimentary
Undescended
Malformation
Triplication
Transposition
Birth > defect
Maldevelopment
Septum, septate
Union, abnormal
Imperfect > fusion
Vestige, vestigial
Duplication, duplex
Lesion > congenital
Pervious, congenital
Elongated, elongation
Open, opening > false
Termination > anomalous
Anomaly, anomalous > jaw
Heterotopia, heterotopic
Implantation > anomalous
Segmentation, incomplete
Subluxation > congenital

Showing 40 of 104 index phrases.

Codes in the same group

Code	Description	Status
M26.601	Right temporomandibular joint disorder, unspecified	Valid
M26.603	Bilateral temporomandibular joint disorder, unspecified	Valid
M26.609	Unspecified temporomandibular joint disorder, unspecified side	Valid