| T49.6X | Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations | NON-BILLABLE CODE |
| T49.6X1 | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional) | NON-BILLABLE CODE |
| T49.6X1A | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), initial encounter | BILLABLE CODE |
| T49.6X1D | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), subsequent encounter | BILLABLE CODE |
| T49.6X1S | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), sequela | BILLABLE CODE |
| T49.6X2 | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm | NON-BILLABLE CODE |
| T49.6X2A | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, initial encounter | BILLABLE CODE |
| T49.6X2D | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, subsequent encounter | BILLABLE CODE |
| T49.6X2S | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, sequela | BILLABLE CODE |
| T49.6X3 | Poisoning by otorhinolaryngological drugs and preparations, assault | NON-BILLABLE CODE |
| T49.6X3A | Poisoning by otorhinolaryngological drugs and preparations, assault, initial encounter | BILLABLE CODE |
| T49.6X3D | Poisoning by otorhinolaryngological drugs and preparations, assault, subsequent encounter | BILLABLE CODE |
| T49.6X3S | Poisoning by otorhinolaryngological drugs and preparations, assault, sequela | BILLABLE CODE |
| T49.6X4 | Poisoning by otorhinolaryngological drugs and preparations, undetermined | NON-BILLABLE CODE |
| T49.6X4A | Poisoning by otorhinolaryngological drugs and preparations, undetermined, initial encounter | BILLABLE CODE |
| T49.6X4D | Poisoning by otorhinolaryngological drugs and preparations, undetermined, subsequent encounter | BILLABLE CODE |
| T49.6X4S | Poisoning by otorhinolaryngological drugs and preparations, undetermined, sequela | BILLABLE CODE |
| T49.6X5 | Adverse effect of otorhinolaryngological drugs and preparations | NON-BILLABLE CODE |
| T49.6X5A | Adverse effect of otorhinolaryngological drugs and preparations, initial encounter | BILLABLE CODE |
| T49.6X5D | Adverse effect of otorhinolaryngological drugs and preparations, subsequent encounter | BILLABLE CODE |
| T49.6X5S | Adverse effect of otorhinolaryngological drugs and preparations, sequela | BILLABLE CODE |
| T49.6X6 | Underdosing of otorhinolaryngological drugs and preparations | NON-BILLABLE CODE |
| T49.6X6A | Underdosing of otorhinolaryngological drugs and preparations, initial encounter | BILLABLE CODE |
| T49.6X6D | Underdosing of otorhinolaryngological drugs and preparations, subsequent encounter | BILLABLE CODE |
| T49.6X6S | Underdosing of otorhinolaryngological drugs and preparations, sequela | BILLABLE CODE |
