S21

Non-billableSave

Open wound of thorax

Chapter 19: Injury, poisoning and certain other consequences of external causes

Coding Guidance

S21 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.

Additional Information

From parent codes: S00-T88 (Chapter 19)

Excludes 1 — Not Coded HereFrom S00-T88

Excludes1 means 'NOT CODED HERE!' An Excludes1 note indicates mutually exclusive codes: two conditions that cannot be reported together.

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use Additional CodeFrom S00-T88

The 'use additional code' note instructs that a secondary code should be added to provide more detail.

code to identify any retained foreign body, if applicable (Z18.-)

More Specific Codes (6)

S21.0Open wound of breastCategory→S21.1Open wound of front wall of thorax without penetration into thoracic cavityCategory→S21.2Open wound of back wall of thorax without penetration into thoracic cavityCategory→S21.3Open wound of front wall of thorax with penetration into thoracic cavityCategory→S21.4Open wound of back wall of thorax with penetration into thoracic cavityCategory→S21.9Open wound of unspecified part of thoraxCategory→

Chapter Information

Chapter 19: Injury, poisoning and certain other consequences of external causes

Range: S00-T88

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Related ICD-10 Codes

More specific codes for S21

Open wound of breast

S21.0›

Open wound of front wall of thorax without penetration into thoracic cavity

S21.1›

Open wound of back wall of thorax without penetration into thoracic cavity

S21.2›

Open wound of front wall of thorax with penetration into thoracic cavity

S21.3›

Open wound of back wall of thorax with penetration into thoracic cavity

S21.4›

Open wound of unspecified part of thorax

S21.9›

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