Infection with microorganisms resistant to sulfonamides

This code signifies an infection caused by bacteria or other microorganisms that have developed resistance to sulfonamide antibiotics. These infections are challenging to treat with standard sulfonamide drugs, requiring alternative antimicrobial therapies.

Apply this code when documentation explicitly states an infection is resistant to sulfonamides, or when culture and sensitivity reports confirm sulfonamide resistance. It's appropriate for various infection sites where sulfonamide resistance is identified.

• Always sequence this code as a secondary diagnosis, following the code for the specific infection.
• Ensure the medical record clearly documents the resistance to sulfonamides.
• Do not use this code if the patient is merely allergic to sulfonamides; resistance implies an ineffective treatment, not an adverse reaction.