ICD-10-CM > A00-B99 > A50-A64 > A54 > A54.4 A54.4 Gonococcal infection of musculoskeletal system Non-Billable/Non-Specific Codes A54.40Gonococcal infection of musculoskeletal system, unspecifiedA54.41Gonococcal spondylopathyA54.42Gonococcal arthritisA54.43Gonococcal osteomyelitisA54.49Gonococcal infection of other musculoskeletal tissue