Poisoning by oth antidepressants, accidental, sequela

This code indicates a long-term consequence or residual effect resulting from an accidental overdose or exposure to an antidepressant medication other than a tricyclic antidepressant (TCA) or selective serotonin reuptake inhibitor (SSRI). These sequelae are conditions that persist after the acute phase of the poisoning has resolved.

Use this code when documenting a patient presenting with a chronic condition or permanent injury directly attributable to a past, unintentional poisoning by an "other antidepressant." This applies when the acute poisoning event is no longer active, but its lasting effects are being treated or monitored. Examples include persistent neurological deficits, organ damage, or psychological sequelae from the original accidental overdose.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past accidental poisoning by an "other antidepressant."
• Do not use for acute poisoning events; those require codes from the initial encounter or subsequent encounter categories.