M94.279 Chondromalacia, unspecified ankle and joints of foot

Billable ICD-10-CM code, FY2026.

Applies from M94.2 Chondromalacia

Excludes1 (never code together)

• chondromalacia patellae (M22.4)

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 733.92 Chondromalacia (approximate)

Nearby codes

• M94.262 Chondromalacia, left knee
• M94.269 Chondromalacia, unspecified knee
• M94.27 Chondromalacia, ankle and joints of foot
• M94.271 Chondromalacia, right ankle and joints of right foot
• M94.272 Chondromalacia, left ankle and joints of left foot
• M94.279 Chondromalacia, unspecified ankle and joints of foot (this code)
• M94.28 Chondromalacia, other site
• M94.29 Chondromalacia, multiple sites
• M94.3 Chondrolysis
• M94.35 Chondrolysis, hip
• M94.351 Chondrolysis, right hip