S42.21
⚠ Non-billable (Header)Unspecified fracture of surgical neck of 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.
Also Known As
Fracture of neck of humerus NOS
⚠️ Excludes2
inherited from S42.2Rules from parent category S42.2: Fracture of upper end of humerus
- • fracture of shaft of humerus (S42.3-)
- • physeal fracture of upper end of humerus (S49.0-)
Child Codes (6)
S42.211Unspecified displaced fracture of surgical neck of right humerusS42.212Unspecified displaced fracture of surgical neck of left humerusS42.213Unspecified displaced fracture of surgical neck of unspecified humerusS42.214Unspecified nondisplaced fracture of surgical neck of right humerusS42.215Unspecified nondisplaced fracture of surgical neck of left humerusS42.216Unspecified nondisplaced fracture of surgical neck of unspecified humerus
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CodeS42.21
BillableNo — Header code
ParentS42.2
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes22 note(s)
Child codes6
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)