Adverse effect of other antiprotozoal drugs, subs encntr

This code signifies a patient experiencing an unintended and harmful reaction to an antiprotozoal medication, other than those specifically classified elsewhere, during a follow-up visit or ongoing treatment. The adverse effect is a direct consequence of the drug's therapeutic use, not an overdose or poisoning.

Apply this code when documenting a patient presenting for continued management or evaluation of an adverse reaction to an antiprotozoal drug (e.g., metronidazole, tinidazole, or other less common agents) after the initial encounter for the adverse effect. This is appropriate for conditions like persistent gastrointestinal upset, neurological symptoms, or dermatological reactions attributed to the medication.

• Always use in conjunction with a code identifying the specific adverse effect (e.g., R11.2 for nausea and vomiting).
• Ensure the documentation clearly states the adverse effect is drug-induced and that this is not the initial encounter.
• Verify the antiprotozoal drug involved is not specifically categorized under another T37 subcategory.