Allergy status to sulfonamides

This code indicates a documented history of an adverse reaction or hypersensitivity to medications containing sulfonamide compounds. This is not an active allergic reaction, but rather a patient's known susceptibility to such a reaction if exposed.

Use this code when a patient's medical record clearly states a past allergic response to sulfonamide antibiotics (e.g., Bactrim, Septra) or other sulfonamide-containing drugs. This is crucial for alerting healthcare providers to avoid prescribing these medications.

• This code is for a history of allergy, not an active allergic event.
• Always verify documentation explicitly states "allergy" or "hypersensitivity" to sulfonamides, not just an adverse effect or intolerance.
• Do not use this code if the patient has only experienced side effects that are not true allergic reactions.