ICD-10 Code for Osteolysis

The default ICD-10-CM 2027 code for osteolysis is M89.50 – Osteolysis, unspecified site. More specific codes depend on the details documented, as listed in the official index (10 codes, 3 billable).

Main code: M89.50 – Osteolysis, unspecified site
Billable: Yes

Index entries for Osteolysis

carpus – M89.54- (header)
clavicle – M89.51- (header)
femur – M89.55- (header)
fibula – M89.56- (header)
finger – M89.54- (header)
humerus – M89.52- (header)
ilium – M89.58
ischium – M89.58
joint prosthesis (periprosthetic) – see Complications, joint prosthesis, mechanical, periprosthetic, osteolysis, by site
metacarpus – M89.54- (header)
metatarsus – M89.57- (header)
multiple sites – M89.59
neck – M89.58
periprosthetic – see Complications, joint prosthesis, mechanical, periprosthetic, osteolysis, by site
pubic ramus [pubis] – M89.58
radius – M89.53- (header)
rib – M89.58
scapula – M89.51- (header)
skull – M89.58
tarsus – M89.57- (header)
tibia – M89.56- (header)
toe – M89.57- (header)
ulna – M89.53- (header)
vertebra – M89.58

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.