ICD-10-CM > M00-M99 > M86-M90 > M86 > M86.4 > M86.41 M86.41 Chronic osteomyelitis with draining sinus, shoulder Non-Billable/Non-Specific Codes M86.411Chronic osteomyelitis with draining sinus, right shoulderM86.412Chronic osteomyelitis with draining sinus, left shoulderM86.419Chronic osteomyelitis with draining sinus, unspecified shoulder