S52.609
⚠ Non-billable (Header)Unspecified fracture of lower end of unspecified ulna
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for S52.609
Child Codes (16)
S52.609AUnspecified fracture of lower end of unspecified ulna, initial encounter for closed fractureS52.609BUnspecified fracture of lower end of unspecified ulna, initial encounter for open fracture type I or IIS52.609CUnspecified fracture of lower end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIICS52.609DUnspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with routine healingS52.609EUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with routine healingS52.609FUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.609GUnspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with delayed healingS52.609HUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with delayed healingS52.609JUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.609KUnspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with nonunionS52.609MUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with nonunionS52.609NUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.609PUnspecified fracture of lower end of unspecified ulna, subsequent encounter for closed fracture with malunionS52.609QUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type I or II with malunionS52.609RUnspecified fracture of lower end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionS52.609SUnspecified fracture of lower end of unspecified ulna, sequela
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CodeS52.609
BillableNo — Header code
ParentS52.60
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes16
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)