Poisoning by sulfonamides

This code signifies an adverse reaction or overdose specifically due to sulfonamide antibiotics. It encompasses both accidental and intentional ingestions, as well as therapeutic misadventures leading to toxic effects from these antimicrobial agents. The patient presents with symptoms directly attributable to sulfonamide toxicity.

Apply this code when documentation clearly states poisoning by a sulfonamide drug, such as sulfamethoxazole, sulfasalazine, or sulfadiazine. This includes scenarios of acute overdose, chronic toxicity, or idiosyncratic reactions manifesting as poisoning. Supporting documentation should detail the sulfonamide agent involved and the resulting toxic effects.

• Always code the specific manifestation of the poisoning (e.g., renal failure, blood dyscrasias) as an additional diagnosis.
• Distinguish between poisoning (adverse effect due to incorrect use or overdose) and adverse effect in therapeutic use (E-code for proper administration).
• Review medication lists and toxicology screens to confirm the sulfonamide as the causative agent.