| T28 | Burn and corrosion of other internal organs | NON-BILLABLE CODE |
| T28.0 | Burn of mouth and pharynx | NON-BILLABLE CODE |
| T28.0XXA | Burn of mouth and pharynx, initial encounter | BILLABLE CODE |
| T28.0XXD | Burn of mouth and pharynx, subsequent encounter | BILLABLE CODE |
| T28.0XXS | Burn of mouth and pharynx, sequela | BILLABLE CODE |
| T28.1 | Burn of esophagus | NON-BILLABLE CODE |
| T28.1XXA | Burn of esophagus, initial encounter | BILLABLE CODE |
| T28.1XXD | Burn of esophagus, subsequent encounter | BILLABLE CODE |
| T28.1XXS | Burn of esophagus, sequela | BILLABLE CODE |
| T28.2 | Burn of other parts of alimentary tract | NON-BILLABLE CODE |
| T28.2XXA | Burn of other parts of alimentary tract, initial encounter | BILLABLE CODE |
| T28.2XXD | Burn of other parts of alimentary tract, subsequent encounter | BILLABLE CODE |
| T28.2XXS | Burn of other parts of alimentary tract, sequela | BILLABLE CODE |
| T28.3 | Burn of internal genitourinary organs | NON-BILLABLE CODE |
| T28.3XXA | Burn of internal genitourinary organs, initial encounter | BILLABLE CODE |
| T28.3XXD | Burn of internal genitourinary organs, subsequent encounter | BILLABLE CODE |
| T28.3XXS | Burn of internal genitourinary organs, sequela | BILLABLE CODE |
| T28.4 | Burns of other and unspecified internal organs | NON-BILLABLE CODE |
| T28.40 | Burn of unspecified internal organ | NON-BILLABLE CODE |
| T28.40XA | Burn of unspecified internal organ, initial encounter | BILLABLE CODE |
| T28.40XD | Burn of unspecified internal organ, subsequent encounter | BILLABLE CODE |
| T28.40XS | Burn of unspecified internal organ, sequela | BILLABLE CODE |
| T28.41 | Burn of ear drum | NON-BILLABLE CODE |
| T28.411 | Burn of right ear drum | NON-BILLABLE CODE |
| T28.411A | Burn of right ear drum, initial encounter | BILLABLE CODE |
| T28.411D | Burn of right ear drum, subsequent encounter | BILLABLE CODE |
| T28.411S | Burn of right ear drum, sequela | BILLABLE CODE |
| T28.412 | Burn of left ear drum | NON-BILLABLE CODE |
| T28.412A | Burn of left ear drum, initial encounter | BILLABLE CODE |
| T28.412D | Burn of left ear drum, subsequent encounter | BILLABLE CODE |
| T28.412S | Burn of left ear drum, sequela | BILLABLE CODE |
| T28.419 | Burn of unspecified ear drum | NON-BILLABLE CODE |
| T28.419A | Burn of unspecified ear drum, initial encounter | BILLABLE CODE |
| T28.419D | Burn of unspecified ear drum, subsequent encounter | BILLABLE CODE |
| T28.419S | Burn of unspecified ear drum, sequela | BILLABLE CODE |
| T28.49 | Burn of other internal organ | NON-BILLABLE CODE |
| T28.49XA | Burn of other internal organ, initial encounter | BILLABLE CODE |
| T28.49XD | Burn of other internal organ, subsequent encounter | BILLABLE CODE |
| T28.49XS | Burn of other internal organ, sequela | BILLABLE CODE |
| T28.5 | Corrosion of mouth and pharynx | NON-BILLABLE CODE |
| T28.5XXA | Corrosion of mouth and pharynx, initial encounter | BILLABLE CODE |
| T28.5XXD | Corrosion of mouth and pharynx, subsequent encounter | BILLABLE CODE |
| T28.5XXS | Corrosion of mouth and pharynx, sequela | BILLABLE CODE |
| T28.6 | Corrosion of esophagus | NON-BILLABLE CODE |
| T28.6XXA | Corrosion of esophagus, initial encounter | BILLABLE CODE |
| T28.6XXD | Corrosion of esophagus, subsequent encounter | BILLABLE CODE |
| T28.6XXS | Corrosion of esophagus, sequela | BILLABLE CODE |
| T28.7 | Corrosion of other parts of alimentary tract | NON-BILLABLE CODE |
| T28.7XXA | Corrosion of other parts of alimentary tract, initial encounter | BILLABLE CODE |
| T28.7XXD | Corrosion of other parts of alimentary tract, subsequent encounter | BILLABLE CODE |
| T28.7XXS | Corrosion of other parts of alimentary tract, sequela | BILLABLE CODE |
| T28.8 | Corrosion of internal genitourinary organs | NON-BILLABLE CODE |
| T28.8XXA | Corrosion of internal genitourinary organs, initial encounter | BILLABLE CODE |
| T28.8XXD | Corrosion of internal genitourinary organs, subsequent encounter | BILLABLE CODE |
| T28.8XXS | Corrosion of internal genitourinary organs, sequela | BILLABLE CODE |
| T28.9 | Corrosions of other and unspecified internal organs | NON-BILLABLE CODE |
| T28.90 | Corrosions of unspecified internal organs | NON-BILLABLE CODE |
| T28.90XA | Corrosions of unspecified internal organs, initial encounter | BILLABLE CODE |
| T28.90XD | Corrosions of unspecified internal organs, subsequent encounter | BILLABLE CODE |
| T28.90XS | Corrosions of unspecified internal organs, sequela | BILLABLE CODE |
| T28.91 | Corrosions of ear drum | NON-BILLABLE CODE |
| T28.911 | Corrosions of right ear drum | NON-BILLABLE CODE |
| T28.911A | Corrosions of right ear drum, initial encounter | BILLABLE CODE |
| T28.911D | Corrosions of right ear drum, subsequent encounter | BILLABLE CODE |
| T28.911S | Corrosions of right ear drum, sequela | BILLABLE CODE |
| T28.912 | Corrosions of left ear drum | NON-BILLABLE CODE |
| T28.912A | Corrosions of left ear drum, initial encounter | BILLABLE CODE |
| T28.912D | Corrosions of left ear drum, subsequent encounter | BILLABLE CODE |
| T28.912S | Corrosions of left ear drum, sequela | BILLABLE CODE |
| T28.919 | Corrosions of unspecified ear drum | NON-BILLABLE CODE |
| T28.919A | Corrosions of unspecified ear drum, initial encounter | BILLABLE CODE |
| T28.919D | Corrosions of unspecified ear drum, subsequent encounter | BILLABLE CODE |
| T28.919S | Corrosions of unspecified ear drum, sequela | BILLABLE CODE |
| T28.99 | Corrosions of other internal organs | NON-BILLABLE CODE |
| T28.99XA | Corrosions of other internal organs, initial encounter | BILLABLE CODE |
| T28.99XD | Corrosions of other internal organs, subsequent encounter | BILLABLE CODE |
