Poisoning by tricyclic antidepressants, self-harm, subs

This code signifies a patient presenting with adverse effects from an intentional overdose of tricyclic antidepressants (TCAs), where the act was self-inflicted. The "subsequent encounter" indicates the patient is receiving follow-up care for the poisoning after initial treatment.

Apply this code when documenting ongoing management, monitoring, or treatment for a patient who previously presented with a self-harm attempt involving tricyclic antidepressants. This includes follow-up appointments, medication adjustments, or addressing residual symptoms related to the poisoning.

• Always sequence this code after the primary diagnosis for the specific adverse effect or complication of the poisoning.
• Ensure documentation clearly states the intentional nature of the overdose and that it is a subsequent encounter.
• Do not use for initial encounters; a different seventh character would be required for the initial treatment phase.