| T54.3X | Toxic effects of corrosive alkalis and alkali-like substances | NON-BILLABLE CODE |
| T54.3X1 | Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional) | NON-BILLABLE CODE |
| T54.3X1A | Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional), initial encounter | BILLABLE CODE |
| T54.3X1D | Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional), subsequent encounter | BILLABLE CODE |
| T54.3X1S | Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional), sequela | BILLABLE CODE |
| T54.3X2 | Toxic effect of corrosive alkalis and alkali-like substances, intentional self-harm | NON-BILLABLE CODE |
| T54.3X2A | Toxic effect of corrosive alkalis and alkali-like substances, intentional self-harm, initial encounter | BILLABLE CODE |
| T54.3X2D | Toxic effect of corrosive alkalis and alkali-like substances, intentional self-harm, subsequent encounter | BILLABLE CODE |
| T54.3X2S | Toxic effect of corrosive alkalis and alkali-like substances, intentional self-harm, sequela | BILLABLE CODE |
| T54.3X3 | Toxic effect of corrosive alkalis and alkali-like substances, assault | NON-BILLABLE CODE |
| T54.3X3A | Toxic effect of corrosive alkalis and alkali-like substances, assault, initial encounter | BILLABLE CODE |
| T54.3X3D | Toxic effect of corrosive alkalis and alkali-like substances, assault, subsequent encounter | BILLABLE CODE |
| T54.3X3S | Toxic effect of corrosive alkalis and alkali-like substances, assault, sequela | BILLABLE CODE |
| T54.3X4 | Toxic effect of corrosive alkalis and alkali-like substances, undetermined | NON-BILLABLE CODE |
| T54.3X4A | Toxic effect of corrosive alkalis and alkali-like substances, undetermined, initial encounter | BILLABLE CODE |
| T54.3X4D | Toxic effect of corrosive alkalis and alkali-like substances, undetermined, subsequent encounter | BILLABLE CODE |
| T54.3X4S | Toxic effect of corrosive alkalis and alkali-like substances, undetermined, sequela | BILLABLE CODE |
