| ICD-10 Code | Description |
| T21.50XA | Corrosion of first degree of trunk, unspecified site, initial encounter |
| T21.50XD | Corrosion of first degree of trunk, unspecified site, subsequent encounter |
| T21.50XS | Corrosion of first degree of trunk, unspecified site, sequela |
| T21.51XA | Corrosion of first degree of chest wall, initial encounter |
| T21.51XD | Corrosion of first degree of chest wall, subsequent encounter |
| T21.51XS | Corrosion of first degree of chest wall, sequela |
| T21.52XA | Corrosion of first degree of abdominal wall, initial encounter |
| T21.52XD | Corrosion of first degree of abdominal wall, subsequent encounter |
| T21.52XS | Corrosion of first degree of abdominal wall, sequela |
| T21.53XA | Corrosion of first degree of upper back, initial encounter |
| T21.53XD | Corrosion of first degree of upper back, subsequent encounter |
| T21.53XS | Corrosion of first degree of upper back, sequela |
| T21.54XA | Corrosion of first degree of lower back, initial encounter |
| T21.54XD | Corrosion of first degree of lower back, subsequent encounter |
| T21.54XS | Corrosion of first degree of lower back, sequela |
| T21.55XA | Corrosion of first degree of buttock, initial encounter |
| T21.55XD | Corrosion of first degree of buttock, subsequent encounter |
| T21.55XS | Corrosion of first degree of buttock, sequela |
| T21.56XA | Corrosion of first degree of male genital region, initial encounter |
| T21.56XD | Corrosion of first degree of male genital region, subsequent encounter |
| T21.56XS | Corrosion of first degree of male genital region, sequela |
| T21.57XA | Corrosion of first degree of female genital region, initial encounter |
| T21.57XD | Corrosion of first degree of female genital region, subsequent encounter |
| T21.57XS | Corrosion of first degree of female genital region, sequela |
| T21.59XA | Corrosion of first degree of other site of trunk, initial encounter |
| T21.59XD | Corrosion of first degree of other site of trunk, subsequent encounter |
| T21.59XS | Corrosion of first degree of other site of trunk, sequela |
