ICD-10-CM › Q00-QA1 › Q65-Q79 › Q66.2 Congenital metatarsus (primus) varus › Q66.21

Q66.21

Congenital metatarsus primus varus

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

Billable FY2017 to FY2019, and a category header from FY2020.

Submit one of these 3 more specific codes instead:

  • Q66.211 Congenital metatarsus primus varus, right foot
  • Q66.212 Congenital metatarsus primus varus, left foot
  • Q66.219 Congenital metatarsus primus varus, unspecified foot

What has happened to this code

Every change the publisher made, from 2017 to now.

  1. FY2017 Added to the code set Congenital metatarsus primus varus
  2. FY2020 Stopped being billable

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 Q66 Congenital deformities of feet

Excludes1 - never coded here

  • reduction defects of feet (Q72.-)
  • valgus deformities (acquired) (M21.0-)
  • varus deformities (acquired) (M21.1-)

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.

Codes in the same group

CodeDescriptionStatus
Q66.22 Congenital metatarsus adductus Not billable