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ICD-10-CM · FY 2026 APRIL UPDATE

S21.1

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

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
S21.10Unspecified open wound of front wall of thorax without penetration into thoracic cavityCategory
S21.101Unspecified open wound of right front wall of thorax without penetration into thoracic cavityCategory
S21.101AUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.101DUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.101SUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.102Unspecified open wound of left front wall of thorax without penetration into thoracic cavityCategory
S21.102AUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.102DUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.102SUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.109Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavityCategory
S21.109AUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.109DUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.109SUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.11Laceration without foreign body of front wall of thorax without penetration into thoracic cavityCategory
S21.111Laceration without foreign body of right front wall of thorax without penetration into thoracic cavityCategory
S21.111ALaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.111DLaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.111SLaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.112Laceration without foreign body of left front wall of thorax without penetration into thoracic cavityCategory
S21.112ALaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.112DLaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.112SLaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.119Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavityCategory
S21.119ALaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.119DLaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable
S21.119SLaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequelaBillable
S21.12Laceration with foreign body of front wall of thorax without penetration into thoracic cavityCategory
S21.121Laceration with foreign body of right front wall of thorax without penetration into thoracic cavityCategory
S21.121ALaceration with foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounterBillable
S21.121DLaceration with foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.