| S20.471 | Other superficial bite of right back wall of thorax | NON-BILLABLE CODE |
| S20.471A | Other superficial bite of right back wall of thorax, initial encounter | BILLABLE CODE |
| S20.471D | Other superficial bite of right back wall of thorax, subsequent encounter | BILLABLE CODE |
| S20.471S | Other superficial bite of right back wall of thorax, sequela | BILLABLE CODE |
| S20.472 | Other superficial bite of left back wall of thorax | NON-BILLABLE CODE |
| S20.472A | Other superficial bite of left back wall of thorax, initial encounter | BILLABLE CODE |
| S20.472D | Other superficial bite of left back wall of thorax, subsequent encounter | BILLABLE CODE |
| S20.472S | Other superficial bite of left back wall of thorax, sequela | BILLABLE CODE |
| S20.479 | Other superficial bite of unspecified back wall of thorax | NON-BILLABLE CODE |
| S20.479A | Other superficial bite of unspecified back wall of thorax, initial encounter | BILLABLE CODE |
| S20.479D | Other superficial bite of unspecified back wall of thorax, subsequent encounter | BILLABLE CODE |
| S20.479S | Other superficial bite of unspecified back wall of thorax, sequela | BILLABLE CODE |
