M25.771 Osteophyte, right ankle

Billable ICD-10-CM code, FY2026.

Applies from M25 Other joint disorder, not elsewhere classified

Excludes2 (not included here)

• abnormality of gait and mobility (R26.-)
• acquired deformities of limb (M20-M21)
• calcification of bursa (M71.4-)
• calcification of shoulder (joint) (M75.3)
• calcification of tendon (M65.2-)
• difficulty in walking (R26.2)
• temporomandibular joint disorder (M26.6-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 726.70 Enthesopathy of ankle and tarsus, unspecified (approximate)

Code annotations containing back-references to M25.771

Back-references to M25.7

• Type 2 Excludes: M77 Other enthesopathies ("osteophyte (M25.7)")

Nearby codes

• M25.76 Osteophyte, knee
• M25.761 Osteophyte, right knee
• M25.762 Osteophyte, left knee
• M25.769 Osteophyte, unspecified knee
• M25.77 Osteophyte, ankle and foot
• M25.771 Osteophyte, right ankle (this code)
• M25.772 Osteophyte, left ankle
• M25.773 Osteophyte, unspecified ankle
• M25.774 Osteophyte, right foot
• M25.775 Osteophyte, left foot
• M25.776 Osteophyte, unspecified foot