M87.07
Non-Billable

Idiopathic aseptic necrosis of ankle, foot and toes

Non-Billable / Non-Specific Code

What is Idiopathic aseptic necrosis of ankle, foot and toes?

ICD-10-CM M87.07 is the diagnosis code for Idiopathic aseptic necrosis of ankle, foot and toes. 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.

💡 Inclusions

Coding Guidelines for M87.07

✅ This Code Includes

  • Idiopathic aseptic necrosis of metatarsus, tarsus, and phalanges of toes

ICD-10-CM Code Hierarchy

Understanding where M87.07 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
M87.071Idiopathic aseptic necrosis of right ankleBillableM87.072Idiopathic aseptic necrosis of left ankleBillableM87.073Idiopathic aseptic necrosis of unspecified ankleBillableM87.074Idiopathic aseptic necrosis of right footBillableM87.075Idiopathic aseptic necrosis of left footBillableM87.076Idiopathic aseptic necrosis of unspecified footBillableM87.077Idiopathic aseptic necrosis of right toe(s)BillableM87.078Idiopathic aseptic necrosis of left toe(s)BillableM87.079Idiopathic aseptic necrosis of unspecified toe(s)Billable
Related Codes

Frequently Asked Questions

Is M87.07 a billable ICD-10-CM code?

No, M87.07 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M87.07 mean?

M87.07 is the ICD-10-CM diagnosis code for "Idiopathic aseptic necrosis of ankle, foot and toes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M87.07?

The parent code of M87.07 is M87.0 ("Idiopathic aseptic necrosis of bone"). M87.07 provides a more specific classification within this category.

What section is M87.07 in?

M87.07 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M87.07?

M87.07 has 9 sub-code(s) that provide more specific detail: M87.071, M87.072, M87.073, M87.074, M87.075 and more.

When should I use M87.07?

Use M87.07 when the patients documented diagnosis matches "Idiopathic aseptic necrosis of ankle, foot and toes" 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 Idiopathic aseptic necrosis of ankle, foot and toes?

The ICD-10-CM code for Idiopathic aseptic necrosis of ankle, foot and toes is M87.07.

Can M87.07 be used for primary diagnosis?

No, M87.07 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M87.07 in?

M87.07 is in Chapter 13 of the ICD-10-CM Tabular List.

Is M87.07 valid for 2026?

Yes, M87.07 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM87.066Idiopathic aseptic necrosis of unspecified fibulaNext →M87.071Idiopathic aseptic necrosis of right ankle
Code Details
M87.07
Idiopathic aseptic necrosis of ankle, foot and toes
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M86-M90 — Other osteopathies
2026 ICD-10-CM