Poisoning by ganglionic blocking drugs, undet, sequela

This code signifies a long-term or residual effect resulting from a past poisoning by a ganglionic blocking drug, where the intent of the poisoning (e.g., accidental, intentional self-harm) could not be determined. The patient is no longer in the acute phase of the poisoning but is experiencing ongoing health issues directly attributable to the previous exposure.

Use this code when documenting a patient presenting with a chronic condition or permanent damage that is a direct consequence of an undetermined ganglionic blocking drug poisoning that occurred in the past. This applies to follow-up encounters for conditions like persistent autonomic dysfunction, organ damage, or neurological deficits clearly linked to the prior poisoning event.

• Always sequence this sequela code after the code for the specific residual condition being treated.
• Ensure documentation clearly links the current sequela to a past ganglionic blocking drug poisoning of undetermined intent.
• Do not use this code for acute poisoning events; instead, use the appropriate acute poisoning code with the 7th character for initial or subsequent encounter.