| T21.20 | Burn of second degree of trunk, unspecified site | NON-BILLABLE CODE |
| T21.20XA | Burn of second degree of trunk, unspecified site, initial encounter | BILLABLE CODE |
| T21.20XD | Burn of second degree of trunk, unspecified site, subsequent encounter | BILLABLE CODE |
| T21.20XS | Burn of second degree of trunk, unspecified site, sequela | BILLABLE CODE |
| T21.21 | Burn of second degree of chest wall | NON-BILLABLE CODE |
| T21.21XA | Burn of second degree of chest wall, initial encounter | BILLABLE CODE |
| T21.21XD | Burn of second degree of chest wall, subsequent encounter | BILLABLE CODE |
| T21.21XS | Burn of second degree of chest wall, sequela | BILLABLE CODE |
| T21.22 | Burn of second degree of abdominal wall | NON-BILLABLE CODE |
| T21.22XA | Burn of second degree of abdominal wall, initial encounter | BILLABLE CODE |
| T21.22XD | Burn of second degree of abdominal wall, subsequent encounter | BILLABLE CODE |
| T21.22XS | Burn of second degree of abdominal wall, sequela | BILLABLE CODE |
| T21.23 | Burn of second degree of upper back | NON-BILLABLE CODE |
| T21.23XA | Burn of second degree of upper back, initial encounter | BILLABLE CODE |
| T21.23XD | Burn of second degree of upper back, subsequent encounter | BILLABLE CODE |
| T21.23XS | Burn of second degree of upper back, sequela | BILLABLE CODE |
| T21.24 | Burn of second degree of lower back | NON-BILLABLE CODE |
| T21.24XA | Burn of second degree of lower back, initial encounter | BILLABLE CODE |
| T21.24XD | Burn of second degree of lower back, subsequent encounter | BILLABLE CODE |
| T21.24XS | Burn of second degree of lower back, sequela | BILLABLE CODE |
| T21.25 | Burn of second degree of buttock | NON-BILLABLE CODE |
| T21.25XA | Burn of second degree of buttock, initial encounter | BILLABLE CODE |
| T21.25XD | Burn of second degree of buttock, subsequent encounter | BILLABLE CODE |
| T21.25XS | Burn of second degree of buttock, sequela | BILLABLE CODE |
| T21.26 | Burn of second degree of male genital region | NON-BILLABLE CODE |
| T21.26XA | Burn of second degree of male genital region, initial encounter | BILLABLE CODE |
| T21.26XD | Burn of second degree of male genital region, subsequent encounter | BILLABLE CODE |
| T21.26XS | Burn of second degree of male genital region, sequela | BILLABLE CODE |
| T21.27 | Burn of second degree of female genital region | NON-BILLABLE CODE |
| T21.27XA | Burn of second degree of female genital region, initial encounter | BILLABLE CODE |
| T21.27XD | Burn of second degree of female genital region, subsequent encounter | BILLABLE CODE |
| T21.27XS | Burn of second degree of female genital region, sequela | BILLABLE CODE |
| T21.29 | Burn of second degree of other site of trunk | NON-BILLABLE CODE |
| T21.29XA | Burn of second degree of other site of trunk, initial encounter | BILLABLE CODE |
| T21.29XD | Burn of second degree of other site of trunk, subsequent encounter | BILLABLE CODE |
| T21.29XS | Burn of second degree of other site of trunk, sequela | BILLABLE CODE |
