S52.0 - Fracture of upper end of ulna
S52.04 - Fracture of coronoid process of ulna
S52.041 - Displaced fracture of coronoid process of right ulna
S52.042 - Displaced fracture of coronoid process of left ulna
S52.043 - Displaced fracture of coronoid process of unspecified ulna
S52.044 - Nondisplaced fracture of coronoid process of right ulna
S52.045 - Nondisplaced fracture of coronoid process of left ulna
S52.046 - Nondisplaced fracture of coronoid process of unspecified ulna