Congenital malformation of breast, 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 Congenital malformation of breast, 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 Q83 Congenital malformations of breast

Excludes2 - not included here

absence of pectoral muscle (Q79.8)
hypoplasia of breast (N64.82)
micromastia (N64.82)

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
Heterotopia, heterotopic
Implantation > anomalous
Segmentation, incomplete
Subluxation > congenital
Congenital > malformation

Showing 40 of 101 index phrases.

Codes in the same group

Code	Description	Status
Q83.0	Congenital absence of breast with absent nipple	Valid
Q83.1	Accessory breast	Valid
Q83.2	Absent nipple	Valid
Q83.3	Accessory nipple	Valid
Q83.8	Other congenital malformations of breast	Valid