Poisoning by opiate antagonists

This code signifies an adverse reaction or overdose specifically due to opiate antagonists. These medications are primarily used to reverse the effects of opioid overdose or to manage opioid dependence. The poisoning can manifest with various symptoms depending on the specific antagonist and the amount ingested.

Use this code when documentation clearly indicates a patient has experienced an adverse effect, toxicity, or overdose from an opiate antagonist. This typically occurs in scenarios such as accidental ingestion, intentional overdose, or an adverse reaction to a prescribed dose. Supporting documentation should specify the substance as an opiate antagonist.

• Differentiate from poisoning by opiates (opioid agonists); this code is for the antagonists.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Look for specific drug names like naloxone, naltrexone, or others identified as opiate antagonists in the documentation.