ICD-10-CM › M00-M99 › M15-M19 › M16 Osteoarthritis of hip › M16.1

M16.1

Unilateral primary osteoarthritis of hip

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:

  • M16.10 Unilateral primary osteoarthritis, unspecified hip
  • M16.11 Unilateral primary osteoarthritis, right hip
  • M16.12 Unilateral primary osteoarthritis, left hip

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 Unilateral primary osteoarthritis of hip

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 the M15-M19 section Osteoarthritis (M15-M19)

Excludes2 - not included here

  • osteoarthritis of spine (M47.-)

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
M16.0 Bilateral primary osteoarthritis of hip Valid
M16.2 Bilateral osteoarthritis resulting from hip dysplasia Valid
M16.3 Unilateral osteoarthritis resulting from hip dysplasia Not billable
M16.4 Bilateral post-traumatic osteoarthritis of hip Valid
M16.5 Unilateral post-traumatic osteoarthritis of hip Not billable
M16.6 Other bilateral secondary osteoarthritis of hip Valid
M16.7 Other unilateral secondary osteoarthritis of hip Valid
M16.9 Osteoarthritis of hip, unspecified Valid