Poisoning by succinimides and oxazolidinediones, acc, subs

This code indicates an accidental overdose or toxic reaction to succinimide or oxazolidinedione medications, such as ethosuximide or trimethadione, during a follow-up visit for treatment. These drugs are primarily used as anticonvulsants. The poisoning is unintentional, meaning it was not self-harm or assault.

Use this code for subsequent encounters when a patient is receiving ongoing care for an accidental poisoning by succinimides or oxazolidinediones. This includes follow-up appointments for monitoring drug levels, managing side effects, or addressing complications arising from the initial overdose. It is appropriate for any visit after the initial emergency treatment.

• Always use in conjunction with an external cause code (e.g., Y45.1 for succinimides, Y45.2 for oxazolidinediones) to specify the drug involved.
• Ensure the "D" for subsequent encounter is appropriate; "A" is for initial encounter and "S" for sequela.
• Code any associated symptoms or complications of the poisoning, such as central nervous system depression or renal failure, as additional diagnoses.