T40.691S
ICD-10-CMPoisoning by other narcotics, accidental (unintentional), sequela
This code signifies a long-term health condition or complication resulting from an accidental overdose or exposure to narcotics other than heroin, opium, or synthetic opioids. It indicates that the acute phase of the poisoning has passed, and the patient is now experiencing residual effects. These sequelae can range from organ damage to neurological deficits.
Apply this code when documenting a patient presenting with a chronic condition directly attributable to a past, unintentional poisoning by a narcotic not specifically categorized elsewhere. This includes follow-up visits for ongoing management of conditions like anoxic brain injury, kidney failure, or chronic pain syndromes that developed as a consequence of the original accidental overdose. Do not use for the initial acute poisoning event.
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