--- T84.030 Mechanical loosening of internal right hip prosthetic joint

--- T84.031 Mechanical loosening of internal left hip prosthetic joint

--- T84.032 Mechanical loosening of internal right knee prosthetic joint

--- T84.033 Mechanical loosening of internal left knee prosthetic joint

--- T84.038 Mechanical loosening of other internal prosthetic joint

--- T84.039 Mechanical loosening of unspecified internal prosthetic joint