| T450X1A | Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), initial encounter |
| T450X1D | Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), subsequent encounter |
| T450X1S | Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), sequela |
| T450X2 | Poisoning by antiallergic and antiemetic drugs, intentional self-harm |
| T450X2A | Poisoning by antiallergic and antiemetic drugs, intentional self-harm, initial encounter |
| T450X2D | Poisoning by antiallergic and antiemetic drugs, intentional self-harm, subsequent encounter |
| T450X2S | Poisoning by antiallergic and antiemetic drugs, intentional self-harm, sequela |
| T450X3 | Poisoning by antiallergic and antiemetic drugs, assault |
| T450X3A | Poisoning by antiallergic and antiemetic drugs, assault, initial encounter |
| T450X3D | Poisoning by antiallergic and antiemetic drugs, assault, subsequent encounter |
| T450X3S | Poisoning by antiallergic and antiemetic drugs, assault, sequela |
| T450X4 | Poisoning by antiallergic and antiemetic drugs, undetermined Poisoning by antiallergic and antiemetic drugs, undetermined |
| T450X4A | Poisoning by antiallergic and antiemetic drugs, undetermined, initial encounter |
| T450X4D | Poisoning by antiallergic and antiemetic drugs, undetermined, subsequent encounter |
| T450X4S | Poisoning by antiallergic and antiemetic drugs, undetermined, sequela |
| T450X5 | Adverse effect of antiallergic and antiemetic drugs |
| T450X5A | Adverse effect of antiallergic and antiemetic drugs, initial encounter |
| T450X5D | Adverse effect of antiallergic and antiemetic drugs, subsequent encounter |
| T450X5S | Adverse effect of antiallergic and antiemetic drugs, sequela Adverse effect of antiallergic and antiemetic drugs, sequela |
| T450X6 | Underdosing of antiallergic and antiemetic drugs |
| T450X6A | Underdosing of antiallergic and antiemetic drugs, initial encounter |
| T450X6D | Underdosing of antiallergic and antiemetic drugs, subsequent encounter |
| T450X6S | Underdosing of antiallergic and antiemetic drugs, sequela |
| T451 | Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs |
| T451X | Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs |
| T451X1 | Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional) |
| T451X1A | Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), initial encounter |
| T451X1D | Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), subsequent encounter |
| T451X1S | Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), sequela |
| T451X2 | Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm |
| T451X2A | Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounter |
| T451X2D | Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, subsequent encounter |
| T451X2S | Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, sequela |
| T451X3 | Poisoning by antineoplastic and immunosuppressive drugs, assault |
| T451X3A | Poisoning by antineoplastic and immunosuppressive drugs, assault, initial encounter |
| T451X3D | Poisoning by antineoplastic and immunosuppressive drugs, assault, subsequent encounter |
| T451X3S | Poisoning by antineopl and immunosup drugs, assault, sequela Poisoning by antineoplastic and immunosuppressive drugs, assault, sequela |
| T451X4 | Poisoning by antineoplastic and immunosuppressive drugs, undetermined |
| T451X4A | Poisoning by antineoplastic and immunosuppressive drugs, undetermined, initial encounter |
| T451X4D | Poisoning by antineoplastic and immunosuppressive drugs, undetermined, subsequent encounter |
| T451X4S | Poisoning by antineoplastic and immunosuppressive drugs, undetermined, sequela |
| T451X5 | Adverse effect of antineoplastic and immunosuppressive drugs Adverse effect of antineoplastic and immunosuppressive drugs |
| T451X5A | Adverse effect of antineoplastic and immunosuppressive drugs, initial encounter |
| T451X5D | Adverse effect of antineoplastic and immunosuppressive drugs, subsequent encounter |
| T451X5S | Adverse effect of antineoplastic and immunosuppressive drugs, sequela |
| T451X6 | Underdosing of antineoplastic and immunosuppressive drugs |
| T451X6A | Underdosing of antineoplastic and immunosuppressive drugs, initial encounter |
| T451X6D | Underdosing of antineoplastic and immunosuppressive drugs, subsequent encounter |
| T451X6S | Underdosing of antineoplastic and immunosuppressive drugs, sequela |
| T452 | Poisoning by, adverse effect of and underdosing of vitamins |