M86.3
Non-Billable

Chronic multifocal osteomyelitis

Non-Billable / Non-Specific Code

What is Chronic multifocal osteomyelitis?

ICD-10-CM M86.3 is the diagnosis code for Chronic multifocal osteomyelitis. 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 M86.3

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 M86.3 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 10 entries
M86.30Chronic multifocal osteomyelitis, unspecified siteBillableM86.31Chronic multifocal osteomyelitis, shoulderNon-BillableM86.311Chronic multifocal osteomyelitis, right shoulderBillableM86.312Chronic multifocal osteomyelitis, left shoulderBillableM86.319Chronic multifocal osteomyelitis, unspecified shoulderBillableM86.32Chronic multifocal osteomyelitis, humerusNon-BillableM86.321Chronic multifocal osteomyelitis, right humerusBillableM86.322Chronic multifocal osteomyelitis, left humerusBillableM86.329Chronic multifocal osteomyelitis, unspecified humerusBillableM86.33Chronic multifocal osteomyelitis, radius and ulnaNon-BillableM86.331Chronic multifocal osteomyelitis, right radius and ulnaBillableM86.332Chronic multifocal osteomyelitis, left radius and ulnaBillableM86.339Chronic multifocal osteomyelitis, unspecified radius and ulnaBillableM86.34Chronic multifocal osteomyelitis, handNon-BillableM86.341Chronic multifocal osteomyelitis, right handBillableM86.342Chronic multifocal osteomyelitis, left handBillableM86.349Chronic multifocal osteomyelitis, unspecified handBillableM86.35Chronic multifocal osteomyelitis, femurNon-BillableM86.351Chronic multifocal osteomyelitis, right femurBillableM86.352Chronic multifocal osteomyelitis, left femurBillableM86.359Chronic multifocal osteomyelitis, unspecified femurBillableM86.36Chronic multifocal osteomyelitis, tibia and fibulaNon-BillableM86.361Chronic multifocal osteomyelitis, right tibia and fibulaBillableM86.362Chronic multifocal osteomyelitis, left tibia and fibulaBillableM86.369Chronic multifocal osteomyelitis, unspecified tibia and fibulaBillableM86.37Chronic multifocal osteomyelitis, ankle and footNon-BillableM86.371Chronic multifocal osteomyelitis, right ankle and footBillableM86.372Chronic multifocal osteomyelitis, left ankle and footBillableM86.379Chronic multifocal osteomyelitis, unspecified ankle and footBillableM86.38Chronic multifocal osteomyelitis, other siteBillableM86.39Chronic multifocal osteomyelitis, multiple sitesBillable
Related Codes

Frequently Asked Questions

Is M86.3 a billable ICD-10-CM code?

No, M86.3 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M86.3 mean?

M86.3 is the ICD-10-CM diagnosis code for "Chronic multifocal osteomyelitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M86.3?

The parent code of M86.3 is M86 ("Osteomyelitis"). M86.3 provides a more specific classification within this category.

What section is M86.3 in?

M86.3 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M86.3?

M86.3 has 10 sub-code(s) that provide more specific detail: M86.30, M86.31, M86.32, M86.33, M86.34 and more.

When should I use M86.3?

Use M86.3 when the patients documented diagnosis matches "Chronic multifocal osteomyelitis" 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 Chronic multifocal osteomyelitis?

The ICD-10-CM code for Chronic multifocal osteomyelitis is M86.3.

Can M86.3 be used for primary diagnosis?

No, M86.3 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M86.3 in?

M86.3 is in Chapter 13 of the ICD-10-CM Tabular List.

Is M86.3 valid for 2026?

Yes, M86.3 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM86.29Subacute osteomyelitis, multiple sitesNext →M86.30Chronic multifocal osteomyelitis, unspecified site
Code Details
M86.3
Chronic multifocal osteomyelitis
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M86-M90 — Other osteopathies
2026 ICD-10-CM