S21.40Non-billable (header)

Unspecified open wound of back wall of thorax with penetration into thoracic cavity

Unspecified open wound of back wall of thorax with penetrati…

Sub-codes of S21.40(3)

S21.40 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).

S21.401Unspecified open wound of right back wall of thorax with pen…⚠ 7th charS21.402Unspecified open wound of left back wall of thorax with pene…⚠ 7th charS21.409Unspecified open wound of unspecified back wall of thorax wi…⚠ 7th char

Code Hierarchy

┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├S20-S29Injuries to the thorax (S20-S29)├S21Open wound of thorax
└S21.40Unspecified open wound of back wall of thorax with penetrati…

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