2007 ICD-9-CM Procedure 79.31 Open reduction of fracture with internal fixation, humerus 79.31 is a specific code that can be used to specify a procedure 79.31 contains 1 index entry View the full Volume 3 79.* hierarchy Index entries containing 79.31: Reduction - see also Excision, by site fracture (bone) (with cast) (with splint) (with traction device) (closed) 79.00 humerus (closed) 79.01 open 79.21 with internal fixation 79.31