M67.259 Synovial hypertrophy, not elsewhere classified, unspecified thigh

Billable ICD-10-CM code, FY2026.

Applies from M67 Other disorders of synovium and tendon

Excludes1 (never code together)

• palmar fascial fibromatosis [Dupuytren] (M72.0)
• tendinitis NOS (M77.9-)
• xanthomatosis localized to tendons (E78.2)

Applies from M67.2 Synovial hypertrophy, not elsewhere classified

Excludes1 (never code together)

• villonodular synovitis (pigmented) (M12.2-)

MS-DRG index

Defines the logic of DRG(s) 557-558 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 727.89 Other disorders of synovium, tendon, and bursa (approximate)

Nearby codes

• M67.242 Synovial hypertrophy, not elsewhere classified, left hand
• M67.249 Synovial hypertrophy, not elsewhere classified, unspecified hand
• M67.25 Synovial hypertrophy, not elsewhere classified, thigh
• M67.251 Synovial hypertrophy, not elsewhere classified, right thigh
• M67.252 Synovial hypertrophy, not elsewhere classified, left thigh
• M67.259 Synovial hypertrophy, not elsewhere classified, unspecified thigh (this code)
• M67.26 Synovial hypertrophy, not elsewhere classified, lower leg
• M67.261 Synovial hypertrophy, not elsewhere classified, right lower leg
• M67.262 Synovial hypertrophy, not elsewhere classified, left lower leg
• M67.269 Synovial hypertrophy, not elsewhere classified, unspecified lower leg
• M67.27 Synovial hypertrophy, not elsewhere classified, ankle and foot