Adverse effect of local antifung/infect/inflamm drugs, subs

This code signifies a patient experiencing an unintended and undesirable reaction to a topically applied medication used to treat fungal, infectious, or inflammatory conditions. The adverse effect is being managed during a follow-up visit after the initial treatment of the reaction.

Apply this code when a patient presents for ongoing care or monitoring of an adverse reaction (e.g., rash, irritation, allergic dermatitis) that developed from a local antifungal, anti-infective, or anti-inflammatory drug. This would be used for encounters subsequent to the initial treatment of the adverse effect.

• Always sequence the code for the specific manifestation of the adverse effect first, followed by this code.
• Ensure documentation clearly states the drug involved and that the encounter is for follow-up care of the adverse effect.
• Distinguish from poisoning (T36-T65) or underdosing, as this code is specifically for adverse effects in therapeutic use.