Poisn by oth drug aff the autonm nervous sys, slf-hrm, subs

This code signifies a patient presenting for follow-up care related to an intentional overdose of a medication that primarily impacts the autonomic nervous system, excluding opioids, sedatives, or psychotropic drugs. The initial self-harm event has already occurred, and the patient is now receiving ongoing treatment or monitoring for its effects.

This code is appropriate for subsequent encounters when a patient is being managed for complications or recovery from a deliberate self-poisoning with drugs like alpha-blockers, beta-blockers, or cholinergic agonists/antagonists. Examples include follow-up appointments after discharge from an acute care setting, or ongoing outpatient therapy for residual symptoms.

• Ensure documentation clearly states "intentional self-harm" and that the drug primarily affects the autonomic nervous system.
• Verify this is a "subsequent encounter" and not the initial treatment for the overdose.
• Always code the specific drug if known, using additional codes from categories T36-T50, if applicable, to provide greater specificity.