Poisoning by anti-Parkinsonism drugs

This code signifies an adverse reaction or overdose specifically due to medications used to treat Parkinson's disease. It encompasses both intentional and accidental poisonings, as well as therapeutic misadventures involving these agents. The patient presents with symptoms resulting from the toxic effects of anti-Parkinsonism drugs.

Apply this code when documentation clearly indicates a poisoning event caused by drugs such as levodopa, carbidopa, dopamine agonists (e.g., pramipexole, ropinirole), MAO-B inhibitors, or COMT inhibitors. This includes scenarios of accidental overdose, intentional self-harm, or adverse effects from incorrect dosage or administration. Supporting documentation should detail the specific anti-Parkinsonism drug involved and the nature of the poisoning.

• Always code the specific manifestation of the poisoning (e.g., hallucinations, dyskinesia, hypotension) as an additional diagnosis.
• Distinguish between poisoning (adverse effect due to incorrect use or overdose) and adverse effect in therapeutic use (correctly prescribed and administered drug causing an adverse reaction).
• If the intent of the poisoning is known (e.g., accidental, intentional self-harm), assign an E-code to specify the circumstances.