ICD-10-CM › M00-M99 › M86-M90 › M88.8 Osteitis deformans of other bones › M88.86

M88.86

Osteitis deformans of lower leg

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:

  • M88.861 Osteitis deformans of right lower leg
  • M88.862 Osteitis deformans of left lower leg
  • M88.869 Osteitis deformans of unspecified lower leg

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 Osteitis deformans of lower leg

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 M88 Osteitis deformans [Paget's disease of bone]

Excludes1 - never coded here

  • osteitis deformans in neoplastic disease (M90.6)

Inherited from the M86-M90 section Other osteopathies (M86-M90)

Excludes1 - never coded here

  • postprocedural osteopathies (M96.-)

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
M88.81 Osteitis deformans of shoulder Not billable
M88.82 Osteitis deformans of upper arm Not billable
M88.83 Osteitis deformans of forearm Not billable
M88.84 Osteitis deformans of hand Not billable
M88.85 Osteitis deformans of thigh Not billable
M88.87 Osteitis deformans of ankle and foot Not billable
M88.88 Osteitis deformans of other bones Valid
M88.89 Osteitis deformans of multiple sites Valid