Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for toe osteolysis

M89.57

Osteolysis, ankle and foot

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Osteolysis › toe”. Page updated September 29, 2026.

About coding toe osteolysis

The ICD-10-CM code for toe osteolysis is M89.57 (Osteolysis, ankle and foot).

Within M89.5 (osteolysis), M89.57 is specifically for osteolysis, ankle and foot. Related codes cover unspecified site (M89.50), shoulder (M89.51), upper arm (M89.52), forearm (M89.53), hand (M89.54), thigh (M89.55), lower leg (M89.56), other site (M89.58) and 1 more.

To report this condition, pick the subcode that matches the documentation: M89.571 (foot), M89.572 (foot) and M89.579 (foot).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about toe osteolysis ICD-10 codes

What is the ICD-10 code for toe osteolysis?

M89.57 — Osteolysis, ankle and foot (a header code; report a more specific subcode).

Is M89.57 billable?

No. M89.57 is a header code. Report one of its more specific subcodes instead.