Poisoning by predom beta-adrenocpt agonists, undet, init

This code signifies an adverse event resulting from an overdose or improper use of medications primarily acting as beta-adrenergic receptor agonists, where the intent (accidental, intentional self-harm, assault) cannot be determined. These drugs are commonly used to treat conditions like asthma, COPD, and heart failure. The patient is in the initial phase of treatment for this poisoning.

Use this code when a patient presents with symptoms of beta-agonist toxicity (e.g., tachycardia, tremors, hypokalemia) and the medical record clearly indicates the substance involved is a predominantly beta-adrenoreceptor agonist. This code is appropriate when the provider cannot definitively state whether the poisoning was accidental, intentional, or due to an assault, and it's the first time the patient is being seen for this specific poisoning episode.

• Always assign an additional code for the specific beta-agonist drug if known (from categories T36-T50).
• Ensure the documentation explicitly states "undetermined" intent for the poisoning.
• Verify this is the initial encounter for this poisoning; subsequent encounters would use the appropriate seventh character (D or S).