M61.5
Non-Billable

Other ossification of muscle

Non-Billable / Non-Specific Code

What is Other ossification of muscle?

ICD-10-CM M61.5 is the diagnosis code for Other ossification of muscle. This code falls under the section "Disorders of muscles" 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 M61.5

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 M61.5 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 10 entries
M61.50Other ossification of muscle, unspecified siteBillableM61.51Other ossification of muscle, shoulderNon-BillableM61.511Other ossification of muscle, right shoulderBillableM61.512Other ossification of muscle, left shoulderBillableM61.519Other ossification of muscle, unspecified shoulderBillableM61.52Other ossification of muscle, upper armNon-BillableM61.521Other ossification of muscle, right upper armBillableM61.522Other ossification of muscle, left upper armBillableM61.529Other ossification of muscle, unspecified upper armBillableM61.53Other ossification of muscle, forearmNon-BillableM61.531Other ossification of muscle, right forearmBillableM61.532Other ossification of muscle, left forearmBillableM61.539Other ossification of muscle, unspecified forearmBillableM61.54Other ossification of muscle, handNon-BillableM61.541Other ossification of muscle, right handBillableM61.542Other ossification of muscle, left handBillableM61.549Other ossification of muscle, unspecified handBillableM61.55Other ossification of muscle, thighNon-BillableM61.551Other ossification of muscle, right thighBillableM61.552Other ossification of muscle, left thighBillableM61.559Other ossification of muscle, unspecified thighBillableM61.56Other ossification of muscle, lower legNon-BillableM61.561Other ossification of muscle, right lower legBillableM61.562Other ossification of muscle, left lower legBillableM61.569Other ossification of muscle, unspecified lower legBillableM61.57Other ossification of muscle, ankle and footNon-BillableM61.571Other ossification of muscle, right ankle and footBillableM61.572Other ossification of muscle, left ankle and footBillableM61.579Other ossification of muscle, unspecified ankle and footBillableM61.58Other ossification of muscle, other siteBillableM61.59Other ossification of muscle, multiple sitesBillable
Related Codes

Frequently Asked Questions

Is M61.5 a billable ICD-10-CM code?

No, M61.5 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M61.5 mean?

M61.5 is the ICD-10-CM diagnosis code for "Other ossification of muscle". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M61.5?

The parent code of M61.5 is M61 ("Calcification and ossification of muscle"). M61.5 provides a more specific classification within this category.

What section is M61.5 in?

M61.5 is located in Section M60-M63 — "Disorders of muscles" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M61.5?

M61.5 has 10 sub-code(s) that provide more specific detail: M61.50, M61.51, M61.52, M61.53, M61.54 and more.

When should I use M61.5?

Use M61.5 when the patients documented diagnosis matches "Other ossification of muscle" 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 ossification of muscle?

The ICD-10-CM code for Other ossification of muscle is M61.5.

Can M61.5 be used for primary diagnosis?

No, M61.5 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M61.5 in?

M61.5 is in Chapter 13 of the ICD-10-CM Tabular List.

Is M61.5 valid for 2026?

Yes, M61.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM61.49Other calcification of muscle, multiple sitesNext →M61.50Other ossification of muscle, unspecified site
Code Details
M61.5
Other ossification of muscle
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M60-M63 — Disorders of muscles
2026 ICD-10-CM