Billable / Specific Code
ICD-10-CM M86.359 is the diagnosis code for Chronic multifocal osteomyelitis, unspecified femur. 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 M86.359 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M86.359 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M86.359 is the ICD-10-CM diagnosis code for "Chronic multifocal osteomyelitis, unspecified femur". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M86.359 is M86.35 ("Chronic multifocal osteomyelitis, femur"). M86.359 provides a more specific classification within this category.
M86.359 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.
M86.359 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use M86.359 when the patients documented diagnosis matches "Chronic multifocal osteomyelitis, unspecified femur" 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 Chronic multifocal osteomyelitis, unspecified femur is M86.359.
Yes, M86.359 can be used as a primary diagnosis code since it is billable and specific.
M86.359 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M86.359 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.