S42.402
⚠ Non-billable (Header)Unspecified fracture of lower end of left humerus
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 S42.402
Child Codes (7)
S42.402AUnspecified fracture of lower end of left humerus, initial encounter for closed fractureS42.402BUnspecified fracture of lower end of left humerus, initial encounter for open fractureS42.402DUnspecified fracture of lower end of left humerus, subsequent encounter for fracture with routine healingS42.402GUnspecified fracture of lower end of left humerus, subsequent encounter for fracture with delayed healingS42.402KUnspecified fracture of lower end of left humerus, subsequent encounter for fracture with nonunionS42.402PUnspecified fracture of lower end of left humerus, subsequent encounter for fracture with malunionS42.402SUnspecified fracture of lower end of left humerus, sequela
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CodeS42.402
BillableNo — Header code
ParentS42.40
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes7
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)