| ICD-10 Code | Description |
| S52.609A | Unspecified fracture of lower end of unspecified ulna, initial encounter for closed fracture |
| S52.609B | Unspecified fracture of lower end of unspecified ulna, initial encounter for open fracture type I or II |
| S52.609C | Unspecified fracture of lower end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC |
| S52.609D | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with routine healing |
| S52.609E | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with routine healing |
| S52.609F | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing |
| S52.609G | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with delayed healing |
| S52.609H | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with delayed healing |
| S52.609J | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing |
| S52.609K | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with nonunion |
| S52.609M | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with nonunion |
| S52.609N | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion |
| S52.609P | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with malunion |
| S52.609Q | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with malunion |
| S52.609R | Unspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion |
| S52.609S | Unspecified fracture of lower end of unspecified ulna, sequela |
