Poisoning by other psychostimulants, undetermined, sequela

This code indicates a long-term health condition or complication resulting from a past poisoning event involving psychostimulants other than cocaine, amphetamines, or methamphetamines. The original intent of the poisoning (e.g., accidental, intentional self-harm) could not be determined at the time of the initial event. The sequela could manifest as neurological damage, organ dysfunction, or other chronic issues.

Apply this code when documenting a current medical condition that is a direct consequence of a previous poisoning by an unspecified psychostimulant, and the intent of that poisoning was never established. This is used for follow-up care or treatment of the chronic effects, not for the acute poisoning itself. Examples include persistent cardiac arrhythmias or cognitive deficits attributed to a past, undetermined psychostimulant overdose.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic kidney disease, neurological disorder).
• Ensure documentation clearly links the current condition to a past psychostimulant poisoning where intent was unknown.
• The "S" in the 7th character indicates sequela; do not use for acute or initial encounters.