Toxic effect of xylazine, undetermined, initial encounter

This code signifies a harmful reaction in a patient due to exposure to xylazine, where the intent of the exposure (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is presenting for the initial treatment of these toxic effects. Xylazine is a veterinary tranquilizer not approved for human use, and its toxic effects can include severe central nervous system depression, bradycardia, hypotension, and respiratory depression.

Use this code when a patient presents with symptoms of xylazine toxicity, and the medical record does not specify whether the exposure was accidental, intentional self-harm, or assault. This code is appropriate for the initial encounter where the patient is actively receiving treatment for the acute toxic effects. It should be applied when the provider documents "xylazine overdose," "xylazine poisoning," or "adverse reaction to xylazine" without a clear indication of intent.

• Always assign an additional code for the specific manifestations of the xylazine toxicity (e.g., respiratory depression, bradycardia).
• Ensure the documentation clearly supports an "undetermined" intent; if intent is known, a different subcategory (e.g., accidental, intentional self-harm) should be used.
• This "A" initial encounter character is only used for the first time the patient is seen for this specific condition.