Convert ICD-10 Code M90.551 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
M90.551 Osteonecrosis in diseases classified elsewhere, right thigh		731.8 Bone involv in oth dis
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
M90.551 Osteonecrosis in diseases classified elsewhere, right thigh		733.42 Aseptic necrosis femur
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

ICD-10 to ICD-9 crosswalk for code M90.551 - osteonecrosis in diseases classified elsewhere, right thigh based on the most recent General Equivalence Mappings (GEMS) information.