Alveolar mandibular hyperplasia

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 Alveolar mandibular hyperplasia

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
Missing
Aberrant
Patulous
Abnormity
Asymmetry
Dysplasia
Additional
Amputation
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
Loss > organ or part
Pervious, congenital
Elongated, elongation
Open, opening > false
Termination > anomalous
Anomaly, anomalous > jaw
Heterotopia, heterotopic

Showing 40 of 114 index phrases.

Codes in the same group

Code	Description	Status
M26.70	Unspecified alveolar anomaly	Valid
M26.71	Alveolar maxillary hyperplasia	Valid
M26.73	Alveolar maxillary hypoplasia	Valid
M26.74	Alveolar mandibular hypoplasia	Valid
M26.79	Other specified alveolar anomalies	Valid