Convert to ICD-10-CM: 
924.00 converts approximately to:
- 2015/16 ICD-10-CM S70.10XA Contusion of unspecified thigh, initial encounter
 ICD-9-CM Volume 2 Index entries containing back-references to 
924.00:
- Contusion (skin surface intact) 924.9  quadriceps femoralis 924.00 quadriceps femoralis 924.00
  thigh (and hip) 924.00 thigh (and hip) 924.00