ICD-10-CM › M00-M99 › M65-M67 › M66.1 Rupture of synovium › M66.12

M66.12

Rupture of synovium, elbow

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 3 more specific codes instead:

  • M66.121 Rupture of synovium, right elbow
  • M66.122 Rupture of synovium, left elbow
  • M66.129 Rupture of synovium, unspecified elbow

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 Rupture of synovium, elbow

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 M66 Spontaneous rupture of synovium and tendon

Excludes2 - not included here

  • rotator cuff syndrome (M75.1-)
  • rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region

Includes

  • rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength

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
M66.10 Rupture of synovium, unspecified joint Valid
M66.11 Rupture of synovium, shoulder Not billable
M66.13 Rupture of synovium, wrist Not billable
M66.14 Rupture of synovium, hand and fingers Not billable
M66.15 Rupture of synovium, hip Not billable
M66.17 Rupture of synovium, ankle, foot and toes Not billable
M66.18 Rupture of synovium, other site Valid