M90.5

M90.5: Osteonecrosis in diseases classified elsewhere

Non-billable headerICD-10-CM

M90.5 is a non-billable header ICD-10-CM code for osteonecrosis in diseases classified elsewhere. It cannot be billed on its own: choose one of the more specific child codes below.

Code first

The underlying condition must be sequenced before this code.

underlying disease, such as:
caisson disease (T70.3)
hemoglobinopathy (D50-D64)

Excludes1 inherited from the categories above M90.5

A category’s note binds every code beneath it.

Written on M90: Osteopathies in diseases classified elsewhere

osteochondritis, osteomyelitis, and osteopathy (in):
cryptococcosis (B45.3)
diabetes mellitus (E08-E13 with .69-)
gonococcal (A54.43)
neurogenic syphilis (A52.11)
renal osteodystrophy (N25.0)
salmonellosis (A02.24)
secondary syphilis (A51.46)
syphilis (late) (A52.77)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M90.5

10 child codes. Green means billable.