Poisoning by unsp drugs acting on muscles, self-harm, init

This code signifies an adverse event resulting from the intentional self-administration of an unknown medication primarily affecting muscle function. The patient has deliberately ingested or otherwise introduced the substance into their body with the intent to cause harm, and this is the first time they are being treated for this specific poisoning episode.

Apply this code when a patient presents with symptoms of poisoning due to an unspecified drug that primarily targets muscles, such as muscle relaxants or neuromuscular blockers, and the medical record clearly indicates intentional self-harm. This code is appropriate for the initial hospital visit or encounter where the poisoning is first evaluated and treated.

• Ensure documentation explicitly states "intentional self-harm" and that the drug class is unknown but affects muscles.
• Do not use if the specific drug is identified; instead, use a more specific code from the T48.2- series.
• The "A" seventh character indicates an initial encounter, meaning the patient is receiving active treatment for the poisoning.