| T453X6S | Underdosing of enzymes, sequela |
| T454 | Poisoning by, adverse effect of and underdosing of iron and its compounds |
| T454X | Poisoning by, adverse effect of and underdosing of iron and its compounds |
| T454X1 | Poisoning by iron and its compounds, accidental (unintentional) |
| T454X1A | Poisoning by iron and its compounds, accidental (unintentional), initial encounter |
| T454X1D | Poisoning by iron and its compounds, accidental (unintentional), subsequent encounter |
| T454X1S | Poisoning by iron and its compounds, accidental (unintentional), sequela |
| T454X2 | Poisoning by iron and its compounds, intentional self-harm |
| T454X2A | Poisoning by iron and its compounds, intentional self-harm, initial encounter |
| T454X2D | Poisoning by iron and its compounds, intentional self-harm, subsequent encounter |
| T454X2S | Poisoning by iron and its compounds, intentional self-harm, sequela |
| T454X3 | Poisoning by iron and its compounds, assault |
| T454X3A | Poisoning by iron and its compounds, assault, initial encounter |
| T454X3D | Poisoning by iron and its compounds, assault, subsequent encounter |
| T454X3S | Poisoning by iron and its compounds, assault, sequela |
| T454X4 | Poisoning by iron and its compounds, undetermined |
| T454X4A | Poisoning by iron and its compounds, undetermined, initial encounter |
| T454X4D | Poisoning by iron and its compounds, undetermined, subsequent encounter |
| T454X4S | Poisoning by iron and its compounds, undetermined, sequela |
| T454X5 | Adverse effect of iron and its compounds |
| T454X5A | Adverse effect of iron and its compounds, initial encounter |
| T454X5D | Adverse effect of iron and its compounds, subsequent encounter |
| T454X5S | Adverse effect of iron and its compounds, sequela |
| T454X6 | Underdosing of iron and its compounds |
| T454X6A | Underdosing of iron and its compounds, initial encounter |
| T454X6D | Underdosing of iron and its compounds, subsequent encounter |
| T454X6S | Underdosing of iron and its compounds, sequela |
| T455 | Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs |
| T4551 | Poisoning by, adverse effect of and underdosing of anticoagulants |
| T45511 | Poisoning by anticoagulants, accidental (unintentional) |
| T45511A | Poisoning by anticoagulants, accidental (unintentional), initial encounter |
| T45511D | Poisoning by anticoagulants, accidental (unintentional), subsequent encounter |
| T45511S | Poisoning by anticoagulants, accidental (unintentional), sequela |
| T45512 | Poisoning by anticoagulants, intentional self-harm |
| T45512A | Poisoning by anticoagulants, intentional self-harm, initial encounter |
| T45512D | Poisoning by anticoagulants, intentional self-harm, subsequent encounter |
| T45512S | Poisoning by anticoagulants, intentional self-harm, sequela |
| T45513 | Poisoning by anticoagulants, assault |
| T45513A | Poisoning by anticoagulants, assault, initial encounter |
| T45513D | Poisoning by anticoagulants, assault, subsequent encounter |
| T45513S | Poisoning by anticoagulants, assault, sequela |
| T45514 | Poisoning by anticoagulants, undetermined |
| T45514A | Poisoning by anticoagulants, undetermined, initial encounter Poisoning by anticoagulants, undetermined, initial encounter |
| T45514D | Poisoning by anticoagulants, undetermined, subsequent encounter |
| T45514S | Poisoning by anticoagulants, undetermined, sequela |
| T45515 | Adverse effect of anticoagulants |
| T45515A | Adverse effect of anticoagulants, initial encounter |
| T45515D | Adverse effect of anticoagulants, subsequent encounter |
| T45515S | Adverse effect of anticoagulants, sequela |
| T45516 | Underdosing of anticoagulants |