| T20412A | Corrosion of unspecified degree of left ear [any part, except ear drum], initial encounter |
| T20412D | Corrosion of unspecified degree of left ear [any part, except ear drum], subsequent encounter |
| T20412S | Corrosion of unspecified degree of left ear [any part, except ear drum], sequela |
| T20419 | Corrosion of unspecified degree of unspecified ear [any part, except ear drum] |
| T20419A | Corrosion of unspecified degree of unspecified ear [any part, except ear drum], initial encounter |
| T20419D | Corrosion of unspecified degree of unspecified ear [any part, except ear drum], subsequent encounter |
| T20419S | Corrosion of unspecified degree of unspecified ear [any part, except ear drum], sequela |
| T2042 | Corrosion of unspecified degree of lip(s) |
| T2042XA | Corrosion of unspecified degree of lip(s), initial encounter Corrosion of unspecified degree of lip(s), initial encounter |
| T2042XD | Corrosion of unspecified degree of lip(s), subsequent encounter |
| T2042XS | Corrosion of unspecified degree of lip(s), sequela |
| T2043 | Corrosion of unspecified degree of chin |
| T2043XA | Corrosion of unspecified degree of chin, initial encounter |
| T2043XD | Corrosion of unspecified degree of chin, subsequent encounter |
| T2043XS | Corrosion of unspecified degree of chin, sequela |
| T2044 | Corrosion of unspecified degree of nose (septum) |
| T2044XA | Corrosion of unspecified degree of nose (septum), initial encounter |
| T2044XD | Corrosion of unspecified degree of nose (septum), subsequent encounter |
| T2044XS | Corrosion of unspecified degree of nose (septum), sequela |
| T2045 | Corrosion of unspecified degree of scalp [any part] |
| T2045XA | Corrosion of unspecified degree of scalp [any part], initial encounter |
| T2045XD | Corrosion of unspecified degree of scalp [any part], subsequent encounter |
| T2045XS | Corrosion of unspecified degree of scalp [any part], sequela Corrosion of unspecified degree of scalp [any part], sequela |
| T2046 | Corrosion of unspecified degree of forehead and cheek |
| T2046XA | Corrosion of unspecified degree of forehead and cheek, initial encounter |
| T2046XD | Corrosion of unspecified degree of forehead and cheek, subsequent encounter |
| T2046XS | Corrosion of unspecified degree of forehead and cheek, sequela |
| T2047 | Corrosion of unspecified degree of neck |
| T2047XA | Corrosion of unspecified degree of neck, initial encounter |
| T2047XD | Corrosion of unspecified degree of neck, subsequent encounter |
| T2047XS | Corrosion of unspecified degree of neck, sequela |
| T2049 | Corrosion of unspecified degree of multiple sites of head, face, and neck |
| T2049XA | Corrosion of unspecified degree of multiple sites of head, face, and neck, initial encounter |
| T2049XD | Corrosion of unspecified degree of multiple sites of head, face, and neck, subsequent encounter |
| T2049XS | Corrosion of unspecified degree of multiple sites of head, face, and neck, sequela |
| T205 | Corrosion of first degree of head, face, and neck |
| T2050 | Corrosion of first degree of head, face, and neck, unsp site Corrosion of first degree of head, face, and neck, unspecified site |
| T2050XA | Corros first degree of head, face, and neck, unsp site, init Corrosion of first degree of head, face, and neck, unspecified site, initial encounter |
| T2050XD | Corros first degree of head, face, and neck, unsp site, subs Corrosion of first degree of head, face, and neck, unspecified site, subsequent encounter |
| T2050XS | Corros first degree of head, face, and neck, unsp site, sqla Corrosion of first degree of head, face, and neck, unspecified site, sequela |
| T2051 | Corrosion of first degree of ear [any part, except ear drum] Corrosion of first degree of ear [any part, except ear drum] |
| T20511 | Corrosion of first degree of right ear [any part, except ear drum] |
| T20511A | Corrosion of first degree of right ear [any part, except ear drum], initial encounter |
| T20511D | Corrosion of first degree of right ear, subsequent encounter Corrosion of first degree of right ear [any part, except ear drum], subsequent encounter |
| T20511S | Corrosion of first degree of right ear [any part, except ear drum], sequela |
| T20512 | Corrosion of first degree of left ear [any part, except ear drum] |
| T20512A | Corrosion of first degree of left ear [any part, except ear drum], initial encounter |
| T20512D | Corrosion of first degree of left ear [any part, except ear drum], subsequent encounter |
| T20512S | Corrosion of first degree of left ear [any part, except ear drum], sequela |
| T20519 | Corrosion of first degree of unspecified ear [any part, except ear drum] |