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S21.10

Non-billable

Unspecified open wound of front wall of thorax without penetration into thoracic cavity

S21.10 is the ICD-10-CM code for Unspecified open wound of front wall of thorax without penetration into thoracic cavity. It is a non-billable category code — use a more specific child code such as S21.101 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
S21.1
Subcodes
3
Edition
FY2026

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

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code S21.10?
S21.10 is the ICD-10-CM code for "Unspecified open wound of front wall of thorax without penetration into thoracic cavity". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is S21.10 a billable code?
No — S21.10 is a non-billable header code. Use a more specific child code (such as S21.101) for billing.
What are the subcodes of S21.10?
S21.10 has 3 more specific child codes, including S21.101, S21.102, S21.109.

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

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