Poisn by centr-acting/adren-neurn-block agnt, slf-hrm, subs

This code signifies a patient presenting for follow-up care related to a deliberate overdose or poisoning from centrally-acting or adrenergic-neuron-blocking medications. These agents typically affect the central nervous system or interfere with nerve impulse transmission, leading to a range of systemic effects. The poisoning was an intentional act of self-harm.

Apply this code when documenting subsequent encounters for patients who previously experienced an intentional self-poisoning with medications such as alpha-2 agonists (e.g., clonidine), beta-blockers, or other drugs that block adrenergic neurons. This includes visits for ongoing management of complications, psychological evaluation, or medication adjustments following the initial acute event.

• Always sequence this code after the primary diagnosis for the specific condition being treated during the subsequent encounter.
• Ensure documentation clearly specifies the intent as "self-harm" and that the encounter is not the initial treatment for the poisoning.
• Verify the specific drug class involved to confirm it falls under "centrally-acting and adrenergic-neuron-blocking agents."