ICD-10-CM › M00-M99 › M40-M43 › M codes › M40

M40

Kyphosis and lordosis

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 6 more specific codes instead:

  • M40.0 Postural kyphosis (also a header)
  • M40.1 Other secondary kyphosis (also a header)
  • M40.2 Other and unspecified kyphosis (also a header)
  • M40.3 Flatback syndrome (also a header)
  • M40.4 Postural lordosis (also a header)
  • M40.5 Lordosis, 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 Kyphosis and lordosis

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

  • congenital kyphosis and lordosis (Q76.4)
  • kyphoscoliosis (M41.-)
  • postprocedural kyphosis and lordosis (M96.-)

Code first

  • underlying disease