|  A  |  initial encounter for closed fracture  | 
|  B  |  initial encounter for open fracture  | 
|  D  |  subsequent encounter for fracture with routine healing  | 
|  G  |  subsequent encounter for fracture with delayed healing  | 
|  K  |  subsequent encounter for fracture with nonunion  | 
|  P  |  subsequent encounter for fracture with malunion  | 
|  S  |  sequela  |