Poisoning by sulfonamides, intentional self-harm, subs

This code signifies a patient presenting for follow-up care related to a deliberate overdose of a sulfonamide medication. This includes situations where the patient intentionally ingested an excessive amount of a sulfa drug with the intent to harm themselves, and they are now receiving ongoing treatment or monitoring for the effects of that poisoning.

Use this code for subsequent encounters when a patient is being treated for complications, sequelae, or ongoing management stemming from a prior intentional self-poisoning with a sulfonamide. This could include follow-up appointments for organ damage, psychiatric evaluation, or medication adjustments related to the initial event.

• Ensure documentation clearly states "intentional self-harm" and that the encounter is "subsequent" to the initial poisoning.
• Verify the specific drug involved is a sulfonamide; do not use for other antibiotic classes.
• Always code with any associated mental health diagnoses (e.g., depression, suicidal ideation) that led to the self-harm.