M67.231 – Synovial hypertrophy, not elsewhere classified, right forearm
ICD-10-CM 2027 diagnosis code · Disorders of synovium and tendon
ICD-10-CM code
M67.231
- Code
M67.231(claims format:M67231)- Description
- Synovial hypertrophy, not elsewhere classified, right forearm
- Short description
- Synovial hypertrophy, NEC, right forearm
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M65-M67 Disorders of synovium and tendon
- Parent codes
- M67 › M67.2 › M67.23
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M67 – Other disorders of synovium and tendon
Excludes1 (not coded here):
M67.2 – Synovial hypertrophy, not elsewhere classified
Excludes1 (not coded here):
- villonodular synovitis (pigmented) (M12.2-)
Related codes in M67.23
Frequently asked questions
What is ICD-10 code M67.231?
M67.231 is the ICD-10-CM code for synovial hypertrophy, not elsewhere classified, right forearm, in the block M65-M67 (Disorders of synovium and tendon).
Is M67.231 a billable code?
Yes. M67.231 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M67.231 belong to?
It belongs to category M67 – Other disorders of synovium and tendon.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.