| M87.050 | Idiopathic aseptic necrosis of pelvis | BILLABLE CODE |
| M87.051 | Idiopathic aseptic necrosis of right femur | BILLABLE CODE |
| M87.052 | Idiopathic aseptic necrosis of left femur | BILLABLE CODE |
| M87.059 | Idiopathic aseptic necrosis of unspecified femur | BILLABLE CODE |
