ICD-10-CM > M00-M99 > M86-M90 > M87 > M87.0 > M87.05 M87.05 Idiopathic aseptic necrosis of pelvis and femur Non-Billable/Non-Specific Codes M87.050Idiopathic aseptic necrosis of pelvisM87.051Idiopathic aseptic necrosis of right femurM87.052Idiopathic aseptic necrosis of left femurM87.059Idiopathic aseptic necrosis of unspecified femur