Poisoning by antitussives, undetermined, subs encntr

This code indicates a poisoning event involving antitussive medications where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is receiving follow-up care for the sequelae or complications of the initial poisoning.

Apply this code when documentation clearly states an antitussive poisoning of unknown intent, and the patient is seen for ongoing treatment, monitoring, or management of residual effects after the acute phase has passed. This includes scenarios like follow-up appointments for organ damage, neurological deficits, or other persistent issues resulting from the poisoning.

• Always sequence this code after the primary diagnosis for the specific condition being treated during the subsequent encounter.
• Requires an additional code for the specific antitussive drug if known, from categories T48.0-T48.2.
• Ensure the "D" seventh character is appropriate for follow-up care; do not use for initial treatment or sequelae.