Poisoning by digestants, accidental (unintentional), subs

This code indicates an accidental poisoning specifically due to a digestant medication, such as an enzyme supplement or antacid, where the patient is receiving follow-up care for the effects of the initial poisoning. This includes ongoing treatment, monitoring for complications, or recovery from the adverse event.

Apply this code when a patient presents for a subsequent visit related to an unintentional overdose or adverse reaction to a digestant. Examples include follow-up for persistent gastrointestinal symptoms after an antacid overdose, or monitoring liver function after accidental ingestion of excessive digestive enzymes. This code is appropriate for any encounter after the initial treatment of the poisoning.

• Ensure the documentation clearly states the poisoning was accidental and caused by a digestant.
• Confirm this is not the initial encounter for the poisoning; look for terms like "follow-up," "re-evaluation," or "ongoing treatment."
• Always code an external cause code (e.g., from the Y90-Y99 range) in conjunction with this poisoning code to specify the circumstances.