M86.4 - Chronic osteomyelitis with draining sinus
M86.47 - Chronic osteomyelitis with draining sinus, ankle and foot
M86.471 - Chronic osteomyelitis with draining sinus, right ankle and foot
M86.472 - Chronic osteomyelitis with draining sinus, left ankle and foot
M86.479 - Chronic osteomyelitis with draining sinus, unspecified ankle and foot