ICD-10 Code S21.429A - Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter

ICD-10-CM Diagnosis Code S21.429A

Diagnosis Code: S21.429A (Raw: S21429A)

Description: Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting.

Overview & Clinical Details

ICD-10-CM code S21.429A is designated for Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.