Convert to ICD-10-CM: 
733.44 converts approximately to:
- 2015/16 ICD-10-CM M87.076 Idiopathic aseptic necrosis of unspecified foot
 ICD-9-CM Volume 2 Index entries containing back-references to 
733.44:
- Necrosis, necrotic bone (see also Osteomyelitis) 730.1 bone (see also Osteomyelitis) 730.1