ICD-10-CM › M00-M99 › M05-M14 › M12.2 Villonodular synovitis (pigmented) › M12.28

M12.28

Villonodular synovitis (pigmented), other specified site

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.

  1. FY2007 Added to the draft code set draft Villonodular synovitis (pigmented), vertebrae
  2. FY2014 Draft description revised draft Villonodular synovitis (pigmented), vertebrae Villonodular synovitis (pigmented), other specified site

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 M12 Other and unspecified arthropathy

Excludes1 - never coded here

  • arthrosis (M15-M19)
  • cricoarytenoid arthropathy (J38.7)

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
M12.20 Villonodular synovitis (pigmented), unspecified site Valid
M12.21 Villonodular synovitis (pigmented), shoulder Not billable
M12.22 Villonodular synovitis (pigmented), elbow Not billable
M12.23 Villonodular synovitis (pigmented), wrist Not billable
M12.24 Villonodular synovitis (pigmented), hand Not billable
M12.25 Villonodular synovitis (pigmented), hip Not billable
M12.26 Villonodular synovitis (pigmented), knee Not billable
M12.27 Villonodular synovitis (pigmented), ankle and foot Not billable
M12.29 Villonodular synovitis (pigmented), multiple sites Valid