Poisn by oth drug aff the autonm nrv sys, slf-hrm, sequela

This code signifies a long-term consequence or complication arising from an intentional self-poisoning event involving a drug that primarily impacts the autonomic nervous system. The initial acute poisoning has resolved, but the patient is now presenting with residual effects directly attributable to that past event.

Apply this code when documenting a patient presenting with chronic or delayed health issues, such as persistent dysautonomia, cardiovascular instability, or gastrointestinal motility disorders, that are directly linked to a prior intentional self-harm overdose of an autonomic nervous system-affecting drug. This code is appropriate for follow-up encounters addressing these sequelae, not the initial acute poisoning.

• Always use this code as a secondary diagnosis, following a code describing the specific sequela (e.g., specific dysrhythmia, chronic constipation).
• Ensure documentation clearly links the current condition to a past intentional self-harm poisoning event.
• Verify the drug involved primarily affects the autonomic nervous system and is not better classified under a more specific drug category.