Underdosing of ganglionic blocking drugs, initial encounter

This code signifies a patient experiencing adverse effects or a lack of therapeutic response due to receiving an insufficient dose of a ganglionic blocking agent. These medications primarily affect the autonomic nervous system, and underdosing can lead to uncontrolled symptoms of the condition they are intended to treat.

Use this code when documentation indicates a patient's condition is worsening or not improving because they are not receiving enough of a ganglionic blocker. This could be due to a prescribed dose that is too low, patient non-adherence to the prescribed regimen, or a medication error resulting in under-administration. This code is specifically for the initial encounter related to this underdosing event.

• Always sequence this code after the code(s) for the specific condition being treated by the ganglionic blocking drug.
• Ensure documentation clearly specifies "underdosing" and not simply "non-compliance" without further detail on the dosage issue.
• Verify that the encounter is the first time the underdosing issue is being addressed for this specific event to use the "A" (initial encounter) seventh character.