Other secondary osteonecrosis, unspecified foot

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 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.

FY2007 Added to the draft code set draft Other secondary osteonecrosis, unspecified foot

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 M87 Osteonecrosis

Excludes1 - never coded here

juvenile osteonecrosis (M91-M92)
osteochondropathies (M90-M93)

Use additional code

code to identify major osseous defect, if applicable (M89.7-)

Includes

avascular necrosis of bone

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.

Necrosis, necrotic > bone
Necrosis, necrotic > vertebra
Necrosis, necrotic > spine, spinal
Necrosis, necrotic > hip, aseptic or avascular
Necrosis, necrotic > bone > aseptic or avascular
Osteonecrosis > secondary NEC > metatarsus

Codes in the same group

Code	Description	Status
M87.371	Other secondary osteonecrosis, right ankle	Valid
M87.372	Other secondary osteonecrosis, left ankle	Valid
M87.373	Other secondary osteonecrosis, unspecified ankle	Valid
M87.374	Other secondary osteonecrosis, right foot	Valid
M87.375	Other secondary osteonecrosis, left foot	Valid
M87.377	Other secondary osteonecrosis, right toe(s)	Valid
M87.378	Other secondary osteonecrosis, left toe(s)	Valid
M87.379	Other secondary osteonecrosis, unspecified toe(s)	Valid