M93.979 Osteochondropathy, unspecified, unspecified ankle and foot

Billable ICD-10-CM code, FY2026.

Applies from M93 Other osteochondropathies

Excludes2 (not included here)

• osteochondrosis of spine (M42.-)

Applies from M93.9 Osteochondropathy, unspecified

Applicable to

• Apophysitis NOS
• Epiphysitis NOS
• Osteochondritis NOS
• Osteochondrosis NOS

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 732.9 Unspecified osteochondropathy (approximate)

Code annotations containing back-references to M93.979

Back-references to M93

• Type 1 Excludes: M87 Osteonecrosis ("osteochondropathies (M90-M93)")

Nearby codes

• M93.962 Osteochondropathy, unspecified, left lower leg
• M93.969 Osteochondropathy, unspecified, unspecified lower leg
• M93.97 Osteochondropathy, unspecified of ankle and foot
• M93.971 Osteochondropathy, unspecified, right ankle and foot
• M93.972 Osteochondropathy, unspecified, left ankle and foot
• M93.979 Osteochondropathy, unspecified, unspecified ankle and foot (this code)
• M93.98 Osteochondropathy, unspecified other
• M93.99 Osteochondropathy, unspecified multiple sites