Poisoning by calcium-channel blockers, self-harm, subs

This code signifies a patient presenting for follow-up care related to an intentional overdose of calcium channel blockers. The initial self-harm event has already been addressed, and the current encounter focuses on ongoing management of the poisoning's effects or complications.

Apply this code for subsequent visits where a patient is being monitored or treated for residual effects of a calcium channel blocker overdose that was a deliberate act of self-harm. This includes appointments for managing cardiac arrhythmias, hypotension, or other organ damage resulting from the poisoning, after the acute phase has passed.

• Requires an external cause code (e.g., X60-X69) to fully describe the circumstances of the self-harm.
• Do not use for the initial acute care encounter; this code is specifically for subsequent encounters.
• Ensure documentation clearly indicates the intentional nature of the overdose and that it is a follow-up visit.