M87.177 – Osteonecrosis due to drugs, right toe(s)

ICD-10-CM 2027 diagnosis code · Other osteopathies

Billable code

ICD-10-CM code M87.177

Code: M87.177 (claims format: M87177)
Description: Osteonecrosis due to drugs, right toe(s)
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M86-M90 Other osteopathies
Parent codes: M87 › M87.1 › M87.17

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M87 – Osteonecrosis

Includes:

avascular necrosis of bone

Excludes1 (not coded here):

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

Use additional code:

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

M87.1 – Osteonecrosis due to drugs

Use additional code:

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Block M86-M90

Excludes1 (not coded here):

postprocedural osteopathies (M96.-)

Related codes in M87.17

Frequently asked questions

What is ICD-10 code M87.177?

M87.177 is the ICD-10-CM code for osteonecrosis due to drugs, right toe(s), in the block M86-M90 (Other osteopathies).

Is M87.177 a billable code?

Yes. M87.177 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does M87.177 belong to?

It belongs to category M87 – Osteonecrosis.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.