Hallux valgus (acquired), left foot

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 Hallux valgus (acquired), left foot

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 M20 Acquired deformities of fingers and toes

Excludes1 - never coded here

acquired absence of fingers and toes (Z89.-)
congenital absence of fingers and toes (Q71.3-, Q72.3-)
congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)

Inherited from the M20-M25 section Other joint disorders (M20-M25)

Excludes2 - not included here

joints of the spine (M40-M54)

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.

Hallux > valgus
Deformity > toe > hallux valgus

Codes in the same group

Code	Description	Status
M20.10	Hallux valgus (acquired), unspecified foot	Valid
M20.11	Hallux valgus (acquired), right foot	Valid