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S42.21

Non-billable

Unspecified fracture of surgical neck of humerus

S42.21 is the ICD-10-CM code for Unspecified fracture of surgical neck of humerus. It is a non-billable category code — use a more specific child code such as S42.211 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
S42.2
Subcodes
6
Edition
FY2026

S00-T88 Injury, poisoning and certain other consequences of external causes

Includes

  • •Fracture of neck of humerus NOS

Frequently asked questions

What is ICD-10 code S42.21?
S42.21 is the ICD-10-CM code for "Unspecified fracture of surgical neck of humerus". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is S42.21 a billable code?
No — S42.21 is a non-billable header code. Use a more specific child code (such as S42.211) for billing.
What are the subcodes of S42.21?
S42.21 has 6 more specific child codes, including S42.211, S42.212, S42.213.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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