| ICD-10 Code | Description |
| T21.70XA | Corrosion of third degree of trunk, unspecified site, initial encounter |
| T21.70XD | Corrosion of third degree of trunk, unspecified site, subsequent encounter |
| T21.70XS | Corrosion of third degree of trunk, unspecified site, sequela |
| T21.71XA | Corrosion of third degree of chest wall, initial encounter |
| T21.71XD | Corrosion of third degree of chest wall, subsequent encounter |
| T21.71XS | Corrosion of third degree of chest wall, sequela |
| T21.72XA | Corrosion of third degree of abdominal wall, initial encounter |
| T21.72XD | Corrosion of third degree of abdominal wall, subsequent encounter |
| T21.72XS | Corrosion of third degree of abdominal wall, sequela |
| T21.73XA | Corrosion of third degree of upper back, initial encounter |
| T21.73XD | Corrosion of third degree of upper back, subsequent encounter |
| T21.73XS | Corrosion of third degree of upper back, sequela |
| T21.74XA | Corrosion of third degree of lower back, initial encounter |
| T21.74XD | Corrosion of third degree of lower back, subsequent encounter |
| T21.74XS | Corrosion of third degree of lower back, sequela |
| T21.75XA | Corrosion of third degree of buttock, initial encounter |
| T21.75XD | Corrosion of third degree of buttock, subsequent encounter |
| T21.75XS | Corrosion of third degree of buttock, sequela |
| T21.76XA | Corrosion of third degree of male genital region, initial encounter |
| T21.76XD | Corrosion of third degree of male genital region, subsequent encounter |
| T21.76XS | Corrosion of third degree of male genital region, sequela |
| T21.77XA | Corrosion of third degree of female genital region, initial encounter |
| T21.77XD | Corrosion of third degree of female genital region, subsequent encounter |
| T21.77XS | Corrosion of third degree of female genital region, sequela |
| T21.79XA | Corrosion of third degree of other site of trunk, initial encounter |
| T21.79XD | Corrosion of third degree of other site of trunk, subsequent encounter |
| T21.79XS | Corrosion of third degree of other site of trunk, sequela |
