Poisoning by cannabis, undetermined, sequela

This code signifies a long-term or residual effect stemming from a past cannabis poisoning where the intent (e.g., accidental, intentional self-harm) could not be determined. It indicates that the patient is currently experiencing a health problem directly attributable to a prior, unclarified cannabis overdose or toxic exposure.

Apply this code when documenting a current condition or complication that is a direct consequence of a previous cannabis poisoning, and the medical record does not specify whether the poisoning was accidental, intentional, or due to assault. This is appropriate for follow-up encounters addressing chronic issues like persistent neurological deficits or mental health disorders linked to the past poisoning event.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., a mental health disorder, neurological damage).
• Ensure documentation clearly links the current condition to a past cannabis poisoning and explicitly states the undetermined intent.
• Avoid using this code for acute poisoning events; instead, use the appropriate acute poisoning code with the correct intent.