ICD-10-CM › M00-M99 › M80-M85 › M84.46 Pathological fracture, tibia and fibula › M84.464

M84.464

Pathological fracture, left fibula

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:

  • M84.464A Pathological fracture, left fibula, initial encounter for fracture
  • M84.464D Pathological fracture, left fibula, subsequent encounter for fracture with routine healing
  • M84.464G Pathological fracture, left fibula, subsequent encounter for fracture with delayed healing
  • M84.464K Pathological fracture, left fibula, subsequent encounter for fracture with nonunion
  • M84.464P Pathological fracture, left fibula, subsequent encounter for fracture with malunion
  • M84.464S Pathological fracture, left fibula, sequela

What has happened to this code

Every change the publisher made, from 2014 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. FY2014 Added to the draft code set draft Pathological fracture, left fibula

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 M84 Disorder of continuity of bone

Excludes2 - not included here

  • traumatic fracture of bone-see fracture, by site

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
M84.461 Pathological fracture, right tibia Not billable
M84.462 Pathological fracture, left tibia Not billable
M84.463 Pathological fracture, right fibula Not billable
M84.469 Pathological fracture, unspecified tibia and fibula Not billable