M87.37
Non-Billable

Other secondary osteonecrosis, ankle and foot

Non-Billable / Non-Specific Code

What is Other secondary osteonecrosis, ankle and foot?

ICD-10-CM M87.37 is the diagnosis code for Other secondary osteonecrosis, ankle and foot. This code falls under the section "Other osteopathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for M87.37

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where M87.37 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
M87.371Other secondary osteonecrosis, right ankleBillableM87.372Other secondary osteonecrosis, left ankleBillableM87.373Other secondary osteonecrosis, unspecified ankleBillableM87.374Other secondary osteonecrosis, right footBillableM87.375Other secondary osteonecrosis, left footBillableM87.376Other secondary osteonecrosis, unspecified footBillableM87.377Other secondary osteonecrosis, right toe(s)BillableM87.378Other secondary osteonecrosis, left toe(s)BillableM87.379Other secondary osteonecrosis, unspecified toe(s)Billable
Related Codes

Frequently Asked Questions

Is M87.37 a billable ICD-10-CM code?

No, M87.37 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M87.37 mean?

M87.37 is the ICD-10-CM diagnosis code for "Other secondary osteonecrosis, ankle and foot". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M87.37?

The parent code of M87.37 is M87.3 ("Other secondary osteonecrosis"). M87.37 provides a more specific classification within this category.

What section is M87.37 in?

M87.37 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M87.37?

M87.37 has 9 sub-code(s) that provide more specific detail: M87.371, M87.372, M87.373, M87.374, M87.375 and more.

When should I use M87.37?

Use M87.37 when the patients documented diagnosis matches "Other secondary osteonecrosis, ankle and foot" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other secondary osteonecrosis, ankle and foot?

The ICD-10-CM code for Other secondary osteonecrosis, ankle and foot is M87.37.

Can M87.37 be used for primary diagnosis?

No, M87.37 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M87.37 in?

M87.37 is in Chapter 13 of the ICD-10-CM Tabular List.

Is M87.37 valid for 2026?

Yes, M87.37 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM87.366Other secondary osteonecrosis, unspecified fibulaNext →M87.371Other secondary osteonecrosis, right ankle
Code Details
M87.37
Other secondary osteonecrosis, ankle and foot
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M86-M90 — Other osteopathies
2026 ICD-10-CM