M61.18

✓ Billable

Myositis ossificans progressiva, other site

Diseases of the musculoskeletal system and connective tissue (M00-M99)

✓ No additional coding notes for M61.18

Clinical Description

ICD-10-CM code M61.18 represents myositis ossificans progressiva, other site. This code falls under the Diseases of the musculoskeletal system and connective tissue (M00-M99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory.

Frequently Asked Questions

What is ICD-10 code M61.18?

ICD-10-CM code M61.18 is "Myositis ossificans progressiva, other site". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).

Is M61.18 a billable ICD-10 code?

Yes, M61.18 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Related Codes in M61.1

Other codes in the same category that may be relevant for differential coding:

M61.10Myositis ossificans progressiva, unspecified site M61.11Myositis ossificans progressiva, shoulder M61.12Myositis ossificans progressiva, upper arm M61.13Myositis ossificans progressiva, forearm M61.14Myositis ossificans progressiva, hand and finger(s)M61.15Myositis ossificans progressiva, thigh M61.16Myositis ossificans progressiva, lower leg M61.17Myositis ossificans progressiva, ankle, foot and toe(s)M61.19Myositis ossificans progressiva, multiple sites

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Code Information

CodeM61.18

BillableYes

ParentM61.1

CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)