Poisoning by diagnostic agents, self-harm, sequela

This code signifies a long-term health condition or complication resulting from a deliberate act of self-poisoning using a diagnostic agent. This includes any lasting physiological or psychological effects that manifest after the initial acute phase of the poisoning event. The original self-harm attempt occurred in the past, and the patient is now presenting with its residual consequences.

Apply this code when a patient is being treated for a chronic condition, organ damage, or mental health issue directly attributable to a past intentional self-poisoning with a substance primarily used for diagnostic purposes (e.g., contrast media, radioactive tracers). This code is appropriate for follow-up care or when the sequela is the primary reason for the current encounter, long after the acute poisoning has resolved.

• Always sequence this sequela code first if it is the primary reason for the encounter.
• Do not use this code for the initial acute poisoning event; that would require an acute poisoning code.
• Ensure documentation clearly links the current condition to the past intentional self-harm by a diagnostic agent.