Poisoning by benzodiazepines, undetermined, sequela

This code indicates a long-term consequence or residual effect stemming from a past poisoning event involving benzodiazepines, where the intent of the poisoning (e.g., accidental, intentional self-harm, assault) 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 it.

Apply this code when documenting conditions such as chronic organ damage, neurological deficits, or persistent mental health issues that are directly linked to a prior benzodiazepine poisoning of undetermined intent. This code is appropriate for follow-up encounters after the initial poisoning has been treated, and the patient is presenting for management of these lasting effects.

• Always sequence this code after the code(s) describing the specific sequela (e.g., chronic kidney disease, anoxic brain injury).
• Ensure documentation clearly links the current condition to the past benzodiazepine poisoning.
• Do not use this code for acute poisoning events; use the appropriate acute poisoning code with the 7th character for initial or subsequent encounter.