| T38.2X | Poisoning by, adverse effect of and underdosing of antithyroid drugs | NON-BILLABLE CODE |
| T38.2X1 | Poisoning by antithyroid drugs, accidental (unintentional) | NON-BILLABLE CODE |
| T38.2X1A | Poisoning by antithyroid drugs, accidental (unintentional), initial encounter | BILLABLE CODE |
| T38.2X1D | Poisoning by antithyroid drugs, accidental (unintentional), subsequent encounter | BILLABLE CODE |
| T38.2X1S | Poisoning by antithyroid drugs, accidental (unintentional), sequela | BILLABLE CODE |
| T38.2X2 | Poisoning by antithyroid drugs, intentional self-harm | NON-BILLABLE CODE |
| T38.2X2A | Poisoning by antithyroid drugs, intentional self-harm, initial encounter | BILLABLE CODE |
| T38.2X2D | Poisoning by antithyroid drugs, intentional self-harm, subsequent encounter | BILLABLE CODE |
| T38.2X2S | Poisoning by antithyroid drugs, intentional self-harm, sequela | BILLABLE CODE |
| T38.2X3 | Poisoning by antithyroid drugs, assault | NON-BILLABLE CODE |
| T38.2X3A | Poisoning by antithyroid drugs, assault, initial encounter | BILLABLE CODE |
| T38.2X3D | Poisoning by antithyroid drugs, assault, subsequent encounter | BILLABLE CODE |
| T38.2X3S | Poisoning by antithyroid drugs, assault, sequela | BILLABLE CODE |
| T38.2X4 | Poisoning by antithyroid drugs, undetermined | NON-BILLABLE CODE |
| T38.2X4A | Poisoning by antithyroid drugs, undetermined, initial encounter | BILLABLE CODE |
| T38.2X4D | Poisoning by antithyroid drugs, undetermined, subsequent encounter | BILLABLE CODE |
| T38.2X4S | Poisoning by antithyroid drugs, undetermined, sequela | BILLABLE CODE |
| T38.2X5 | Adverse effect of antithyroid drugs | NON-BILLABLE CODE |
| T38.2X5A | Adverse effect of antithyroid drugs, initial encounter | BILLABLE CODE |
| T38.2X5D | Adverse effect of antithyroid drugs, subsequent encounter | BILLABLE CODE |
| T38.2X5S | Adverse effect of antithyroid drugs, sequela | BILLABLE CODE |
| T38.2X6 | Underdosing of antithyroid drugs | NON-BILLABLE CODE |
| T38.2X6A | Underdosing of antithyroid drugs, initial encounter | BILLABLE CODE |
| T38.2X6D | Underdosing of antithyroid drugs, subsequent encounter | BILLABLE CODE |
| T38.2X6S | Underdosing of antithyroid drugs, sequela | BILLABLE CODE |
