Advrs effect of unsp sys anti-infect and antiparasitic, sqla

This code signifies a long-term or residual condition resulting from a past adverse reaction to a systemic anti-infective or antiparasitic medication, where the specific drug is unknown. The adverse effect itself is no longer acute, but its lasting consequences are still present and require ongoing management.

Apply this code when documenting a sequela (e.g., chronic organ damage, persistent neurological deficit) that is definitively linked to an adverse drug event involving an anti-infective or antiparasitic, but the exact medication cannot be identified. This is appropriate when the original acute adverse effect has resolved, but its lasting impact remains.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly states the adverse effect is a sequela and the drug class (systemic anti-infective/antiparasitic) is known, but the specific drug is not.
• Avoid using this code if the specific anti-infective or antiparasitic agent is known; instead, use the more specific T36-T37 codes.