Poisoning by calcium-channel blockers, accidental, init

This code signifies an unintentional overdose or adverse reaction to a calcium-channel blocker medication. The patient has ingested or been administered an excessive or incorrect dose of this drug, leading to toxic effects. This is the initial presentation for treatment of the poisoning.

Apply this code when a patient presents to an emergency department or clinic with symptoms of calcium-channel blocker toxicity due to an accidental ingestion, medication error, or other non-intentional exposure. This code is appropriate for the first encounter where the poisoning is being actively treated.

• Ensure the documentation clearly states the poisoning was accidental or unintentional.
• Verify that the substance involved is specifically a calcium-channel blocker.
• Confirm this is the initial encounter for the treatment of the poisoning; subsequent encounters will require a different seventh character.