Convert to ICD-10-CM: 
809.1 converts approximately to:
- 2015/16 ICD-10-CM S22.9XXB Fracture of bony thorax, part unspecified, initial encounter for open fracture
 ICD-9-CM Volume 2 Index entries containing back-references to 
809.1:
- Fracture (abduction) (adduction) (avulsion) (compression) (crush) (dislocation) (oblique) (separation) (closed) 829.0  multiple (closed) 829.0 multiple (closed) 829.0   arm (multiple bones in same arm except in hand alone) (sites classifiable to 810 arm (multiple bones in same arm except in hand alone) (sites classifiable to 810 -817 -817 with sites classifiable to a different three-digit category in 810 with sites classifiable to a different three-digit category in 810 -817 -817 in same arm) (closed) 818.0 in same arm) (closed) 818.0 
  arms, both or arm(s) with rib(s) or sternum (sites classifiable to 810 arms, both or arm(s) with rib(s) or sternum (sites classifiable to 810 -818 -818 with sites classifiable to same range of categories in other limb or to 807 with sites classifiable to same range of categories in other limb or to 807 ) (closed) 819.0 ) (closed) 819.0 
  bones of trunk NEC (closed) 809.0 bones of trunk NEC (closed) 809.0 
  hand, metacarpal bone(s) with phalanx or phalanges of same hand (sites classifiable to 815 hand, metacarpal bone(s) with phalanx or phalanges of same hand (sites classifiable to 815 with sites classifiable to 816 with sites classifiable to 816 in same hand) (closed) 817.0 in same hand) (closed) 817.0 
  leg (multiple bones in same leg) (sites classifiable to 820 leg (multiple bones in same leg) (sites classifiable to 820 -826 -826 with sites classifiable to a different three-digit category in that range in same leg) (closed) 827.0 with sites classifiable to a different three-digit category in that range in same leg) (closed) 827.0 
  legs, both or leg(s) with arm(s), rib(s), or sternum (sites classifiable to 820 legs, both or leg(s) with arm(s), rib(s), or sternum (sites classifiable to 820 -827 -827 with sites classifiable to same range of categories in other leg or to 807 with sites classifiable to same range of categories in other leg or to 807 or 810 or 810 -819 -819 ) (closed) 828.0 ) (closed) 828.0 
  open 829.1 open 829.1 
  pelvis with other bones except skull or face bones (sites classifiable to 808 pelvis with other bones except skull or face bones (sites classifiable to 808 with sites classifiable to 805 with sites classifiable to 805 -807 -807 or 810 or 810 -829 -829 ) (closed) 809.0 ) (closed) 809.0 
  skull, specified or unspecified bones, or face bone(s) with any other bone(s) (sites classifiable to 800 skull, specified or unspecified bones, or face bone(s) with any other bone(s) (sites classifiable to 800 -803 -803 with sites classifiable to 805 with sites classifiable to 805 -829 -829 ) (closed) 804.0 ) (closed) 804.0 
 
  open 804.5 open 804.5   with with   contusion, cerebral 804.6 contusion, cerebral 804.6 
   epidural hemorrhage 804.7 epidural hemorrhage 804.7 
   extradural hemorrhage 804.7 extradural hemorrhage 804.7 
   hemorrhage (intracranial) NEC 804.8 hemorrhage (intracranial) NEC 804.8 
   intracranial injury NEC 804.9 intracranial injury NEC 804.9 
   laceration, cerebral 804.6 laceration, cerebral 804.6 
   subarachnoid hemorrhage 804.7 subarachnoid hemorrhage 804.7 
   subdural hemorrhage 804.7 subdural hemorrhage 804.7 
 
  vertebral column with other bones, except skull or face bones (sites classifiable to 805 vertebral column with other bones, except skull or face bones (sites classifiable to 805 or 806 or 806 with sites classifiable to 807 with sites classifiable to 807 -808 -808 or 810 or 810 -829 -829 ) (closed) 809.0 ) (closed) 809.0 
 
  trunk (bones) (closed) 809.0 trunk (bones) (closed) 809.0   open 809.1 open 809.1