ICD-10-CM › M00-M99 › M20-M25 › M codes › M20

M20

Acquired deformities of fingers and toes

Not billableICD-10-CM diagnosis code.

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

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 7 more specific codes instead:

  • M20.0 Deformity of finger(s) (also a header)
  • M20.1 Hallux valgus (acquired) (also a header)
  • M20.2 Hallux rigidus (also a header)
  • M20.3 Hallux varus (acquired) (also a header)
  • M20.4 Other hammer toe(s) (acquired) (also a header)
  • M20.5 Other deformities of toe(s) (acquired) (also a header)
  • M20.6 Acquired deformities of toe(s), unspecified (also a header)

What has happened to this code

Every change the publisher made, from 2012 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.

  1. FY2012 Added to the draft code set draft Acquired deformities of fingers and toes

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.

This code

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)