Poisoning by sympatholytics [antiadrenergics]

This code signifies an adverse effect resulting from the ingestion, exposure, or administration of sympatholytic agents, also known as antiadrenergics. These medications block the effects of the sympathetic nervous system, and poisoning can lead to symptoms such as bradycardia, hypotension, and central nervous system depression. This diagnosis indicates a toxic reaction to these substances.

Use this code when documentation clearly states a patient is experiencing poisoning or an adverse reaction due to sympatholytic drugs, such as beta-blockers or alpha-blockers. This applies whether the poisoning is accidental, intentional, or due to an incorrect dosage. Supporting documentation should include details of the substance involved and the resulting clinical manifestations.

• Differentiate between poisoning (adverse effect due to overdose or wrong substance) and adverse effect in therapeutic use (correct substance, correct dose, but unexpected reaction).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Look for specific drug names like metoprolol, propranolol, prazosin, or clonidine in the documentation to confirm sympatholytic agent involvement.