Billable / Specific Code
ICD-10-CM M90.561 is the diagnosis code for Osteonecrosis in diseases classified elsewhere, right lower leg. This code falls under the section "Other osteopathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
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.
Understanding where M90.561 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M90.561 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M90.561 is the ICD-10-CM diagnosis code for "Osteonecrosis in diseases classified elsewhere, right lower leg". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M90.561 is M90.56 ("Osteonecrosis in diseases classified elsewhere, lower leg"). M90.561 provides a more specific classification within this category.
M90.561 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.
M90.561 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use M90.561 when the patients documented diagnosis matches "Osteonecrosis in diseases classified elsewhere, right lower leg" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Osteonecrosis in diseases classified elsewhere, right lower leg is M90.561.
Yes, M90.561 can be used as a primary diagnosis code since it is billable and specific.
M90.561 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M90.561 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.