Get started free

S21.9

Non-billable

Open wound of unspecified part of thorax

S21.9 is the ICD-10-CM code for Open wound of unspecified part of thorax. It is a non-billable category code — use a more specific child code such as S21.90 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
S21
Subcodes
6
Edition
FY2026

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

Includes

  • •Open wound of thoracic wall NOS

Frequently asked questions

What is ICD-10 code S21.9?
S21.9 is the ICD-10-CM code for "Open wound of unspecified part of thorax". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is S21.9 a billable code?
No — S21.9 is a non-billable header code. Use a more specific child code (such as S21.90) for billing.
What are the subcodes of S21.9?
S21.9 has 6 more specific child codes, including S21.90, S21.91, S21.92.

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

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →