ICD-10-CM › M00-M99 › M05-M14 › M05.4 Rheumatoid myopathy with... › M05.49

M05.49

Rheumatoid myopathy with rheumatoid arthritis of multiple sites

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 Rheumatoid myopathy with rheumatoid arthritis of multiple sites

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 M05 Rheumatoid arthritis with rheumatoid factor

Excludes1 - never coded here

  • rheumatic fever (I00)
  • juvenile rheumatoid arthritis (M08.-)
  • rheumatoid arthritis of spine (M45.-)

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
M05.40 Rheumatoid myopathy with rheumatoid arthritis of unspecified site Valid
M05.41 Rheumatoid myopathy with rheumatoid arthritis of shoulder Not billable
M05.42 Rheumatoid myopathy with rheumatoid arthritis of elbow Not billable
M05.43 Rheumatoid myopathy with rheumatoid arthritis of wrist Not billable
M05.44 Rheumatoid myopathy with rheumatoid arthritis of hand Not billable
M05.45 Rheumatoid myopathy with rheumatoid arthritis of hip Not billable
M05.46 Rheumatoid myopathy with rheumatoid arthritis of knee Not billable
M05.47 Rheumatoid myopathy with rheumatoid arthritis of ankle and foot Not billable