S21.242D ✓ Billable

Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter

Q: What is ICD-10 code S21.242D?

ICD-10-CM code S21.242D stands for "Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter". It is a billable code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

Q: Is S21.242D a billable ICD-10 code?

Yes. S21.242D (Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter) is billable and can be used for insurance claims. Always verify payer-specific requirements.

ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes

Code

S21.242D

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Injury, Poisoning and Certain Other Consequences of External Causes

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code S21.242D?

ICD-10-CM code S21.242D represents Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.

Is S21.242D billable?

Yes. S21.242D is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is S21.242D in?

S21.242D belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.

Related codes in the S21 category

S21 Open wound of thorax Non-billable S21.0 Open wound of breast Non-billable S21.1 Open wound of front wall of thorax without penetration into thoracic cavity Non-billable S21.2 Open wound of back wall of thorax without penetration into thoracic cavity Non-billable S21.3 Open wound of front wall of thorax with penetration into thoracic cavity Non-billable S21.4 Open wound of back wall of thorax with penetration into thoracic cavity Non-billable S21.9 Open wound of unspecified part of thorax Non-billable S21.00 Unspecified open wound of breast Non-billable

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