| S20374A | Other superficial bite of middle front wall of thorax, initial encounter |
| S20374D | Other superficial bite of middle front wall of thorax, subsequent encounter |
| S20374S | Other superficial bite of middle front wall of thorax, sequela |
| S20379 | Other superficial bite of unspecified front wall of thorax |
| S20379A | Other superficial bite of unspecified front wall of thorax, initial encounter |
| S20379D | Other superficial bite of unspecified front wall of thorax, subsequent encounter |
| S20379S | Other superficial bite of unsp front wall of thorax, sequela Other superficial bite of unspecified front wall of thorax, sequela |
| S204 | Other and unspecified superficial injuries of back wall of thorax |
| S2040 | Unspecified superficial injuries of back wall of thorax |
| S20401 | Unspecified superficial injuries of right back wall of thorax |
| S20401A | Unsp superficial injuries of right back wall of thorax, init Unspecified superficial injuries of right back wall of thorax, initial encounter |
| S20401D | Unsp superficial injuries of right back wall of thorax, subs Unspecified superficial injuries of right back wall of thorax, subsequent encounter |
| S20401S | Unspecified superficial injuries of right back wall of thorax, sequela |
| S20402 | Unspecified superficial injuries of left back wall of thorax Unspecified superficial injuries of left back wall of thorax |
| S20402A | Unspecified superficial injuries of left back wall of thorax, initial encounter |
| S20402D | Unspecified superficial injuries of left back wall of thorax, subsequent encounter |
| S20402S | Unspecified superficial injuries of left back wall of thorax, sequela |
| S20409 | Unsp superficial injuries of unspecified back wall of thorax Unspecified superficial injuries of unspecified back wall of thorax |
| S20409A | Unspecified superficial injuries of unspecified back wall of thorax, initial encounter |
| S20409D | Unspecified superficial injuries of unspecified back wall of thorax, subsequent encounter |
| S20409S | Unspecified superficial injuries of unspecified back wall of thorax, sequela |
| S2041 | Abrasion of back wall of thorax |
| S20411 | Abrasion of right back wall of thorax |
| S20411A | Abrasion of right back wall of thorax, initial encounter |
| S20411D | Abrasion of right back wall of thorax, subsequent encounter |
| S20411S | Abrasion of right back wall of thorax, sequela |
| S20412 | Abrasion of left back wall of thorax |
| S20412A | Abrasion of left back wall of thorax, initial encounter |
| S20412D | Abrasion of left back wall of thorax, subsequent encounter |
| S20412S | Abrasion of left back wall of thorax, sequela |
| S20419 | Abrasion of unspecified back wall of thorax |
| S20419A | Abrasion of unspecified back wall of thorax, initial encounter |
| S20419D | Abrasion of unspecified back wall of thorax, subsequent encounter |
| S20419S | Abrasion of unspecified back wall of thorax, sequela |
| S2042 | Blister (nonthermal) of back wall of thorax |
| S20421 | Blister (nonthermal) of right back wall of thorax |
| S20421A | Blister (nonthermal) of right back wall of thorax, initial encounter |
| S20421D | Blister (nonthermal) of right back wall of thorax, subsequent encounter |
| S20421S | Blister (nonthermal) of right back wall of thorax, sequela |
| S20422 | Blister (nonthermal) of left back wall of thorax |
| S20422A | Blister (nonthermal) of left back wall of thorax, initial encounter |
| S20422D | Blister (nonthermal) of left back wall of thorax, subsequent encounter |
| S20422S | Blister (nonthermal) of left back wall of thorax, sequela |
| S20429 | Blister (nonthermal) of unspecified back wall of thorax |
| S20429A | Blister (nonthermal) of unspecified back wall of thorax, initial encounter |
| S20429D | Blister (nonthermal) of unspecified back wall of thorax, subsequent encounter |
| S20429S | Blister (nonthermal) of unspecified back wall of thorax, sequela |
| S2044 | External constriction of back wall of thorax |
| S20441 | External constriction of right back wall of thorax |
| S20441A | External constriction of right back wall of thorax, initial encounter |