Convert to ICD-10-CM:
922.31 converts approximately to:
- 2015/16 ICD-10-CM S30.0XXA Contusion of lower back and pelvis, initial encounter
ICD-9-CM Volume 2 Index entries containing back-references to
922.31:
- Contusion (skin surface intact) 924.9

back 922.31
lumbar region 922.31