Chest Wall Contusion ICD-10-CM Codes

What ICD-10 codes are used for chest wall contusion?

The following ICD-10-CM codes are used to document chest wall contusions, depending on the specific location and encounter type:

• S20.211A – Contusion of right front wall of thorax, initial encounter
• S20.212A – Contusion of left front wall of thorax, initial encounter
• S20.214A – Contusion of middle front wall of thorax, initial encounter
• S20.213A – Contusion of bilateral front wall of thorax, initial encounter
• S20.219A – Contusion of unspecified front wall of thorax, initial encounter
• S20.221A – Contusion of right back wall of thorax, initial encounter
• S20.222A – Contusion of left back wall of thorax, initial encounter
• S20.223A – Contusion of bilateral back wall of thorax, initial encounter
• S20.224  – Contusion of middle back wall of thorax, initial encounter
• S20.229A – Contusion of unspecified back wall of thorax, initial encounter

Which chest wall contusion ICD codes are billable?

All of the following chest wall contusion ICD-10-CM codes are billable for clinical documentation and reimbursement purposes.

Clinical information

A chest wall contusion refers to a blunt injury to the skin, subcutaneous tissue, and breast structures overlying the thorax, typically resulting from direct impact. This condition commonly occurs following motor vehicle accidents, falls, or other forms of blunt force trauma, and may affect the bilateral front wall or bilateral back wall of the thorax. The resulting injury is often classified under contusion of the thorax, which may involve varying degrees of pain, swelling, and discoloration due to trauma to the skin and underlying soft tissue.

In clinical documentation, the extent of injury may range from mild bruising to more complex unspecified superficial injuries. It is essential to assess whether the contusion is isolated or associated with deeper injuries such as rib fractures or damage to internal organs. If the injury involves the subcutaneous tissue and breast without complications, the condition is typically managed conservatively. However, cases involving the breast with major complications or comorbidities (MCC) or breast without MCC may require more detailed evaluation and care, especially in inpatient settings.

For ongoing care beyond the initial presentation, the diagnosis may be updated to indicate a subsequent encounter, reflecting follow-up treatment or monitoring of healing progress. Providers should also assess for certain other consequences of blunt chest trauma, such as respiratory difficulty or delayed haematoma formation, to ensure comprehensive management and documentation.

Synonyms include

• Thorax contusion
• Contusion on the thorax
• Chest wall bruise
• Contusion of chest
• Contusion of rib