M12.25
⚠ Non-billable (Header)Villonodular synovitis (pigmented), hip
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • arthrosis (M15-M19)
- • cricoarytenoid arthropathy (J38.7)
Child Codes (3)
Clinical Description
ICD-10-CM code M12.25 represents villonodular synovitis (pigmented), hip. This code falls under the Diseases of the musculoskeletal system and connective tissue (M00-M99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 6-character code at the 5th level of specificity. There are 3 more specific child codes under M12.25. Coders should note that M12.25 has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code M12.25?
ICD-10-CM code M12.25 is "Villonodular synovitis (pigmented), hip". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).
Is M12.25 a billable ICD-10 code?
No, M12.25 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with M12.25?
M12.25 has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in M12.2
Other codes in the same category that may be relevant for differential coding:
🧪 Validate Combinations
Add M12.25 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)