S52.509
⚠ Non-billable (Header)Unspecified fracture of the lower end of unspecified radius
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 S52.509
Child Codes (16)
S52.509AUnspecified fracture of the lower end of unspecified radius, initial encounter for closed fractureS52.509BUnspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type I or IIS52.509CUnspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type IIIA, IIIB, or IIICS52.509DUnspecified fracture of the lower end of unspecified radius, subsequent encounter for closed fracture with routine healingS52.509EUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type I or II with routine healingS52.509FUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.509GUnspecified fracture of the lower end of unspecified radius, subsequent encounter for closed fracture with delayed healingS52.509HUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type I or II with delayed healingS52.509JUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.509KUnspecified fracture of the lower end of unspecified radius, subsequent encounter for closed fracture with nonunionS52.509MUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type I or II with nonunionS52.509NUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.509PUnspecified fracture of the lower end of unspecified radius, subsequent encounter for closed fracture with malunionS52.509QUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type I or II with malunionS52.509RUnspecified fracture of the lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionS52.509SUnspecified fracture of the lower end of unspecified radius, sequela
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CodeS52.509
BillableNo — Header code
ParentS52.50
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)