| S20.90 | Unspecified superficial injury of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.90XA | Unspecified superficial injury of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.90XD | Unspecified superficial injury of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.90XS | Unspecified superficial injury of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.91 | Abrasion of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.91XA | Abrasion of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.91XD | Abrasion of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.91XS | Abrasion of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.92 | Blister (nonthermal) of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.92XA | Blister (nonthermal) of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.92XD | Blister (nonthermal) of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.92XS | Blister (nonthermal) of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.94 | External constriction of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.94XA | External constriction of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.94XD | External constriction of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.94XS | External constriction of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.95 | Superficial foreign body of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.95XA | Superficial foreign body of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.95XD | Superficial foreign body of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.95XS | Superficial foreign body of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.96 | Insect bite (nonvenomous) of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.96XA | Insect bite (nonvenomous) of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.96XD | Insect bite (nonvenomous) of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.96XS | Insect bite (nonvenomous) of unspecified parts of thorax, sequela | BILLABLE CODE |
| S20.97 | Other superficial bite of unspecified parts of thorax | NON-BILLABLE CODE |
| S20.97XA | Other superficial bite of unspecified parts of thorax, initial encounter | BILLABLE CODE |
| S20.97XD | Other superficial bite of unspecified parts of thorax, subsequent encounter | BILLABLE CODE |
| S20.97XS | Other superficial bite of unspecified parts of thorax, sequela | BILLABLE CODE |
