Poisoning by other antiprotozoal drugs

This code signifies an adverse effect resulting from the ingestion or exposure to antiprotozoal medications other than those specifically classified elsewhere (e.g., antimalarials, amebicides). It indicates a toxic reaction or overdose to drugs used to treat parasitic infections caused by protozoa. The patient presents with symptoms directly attributable to the pharmacological properties or excessive dose of such a substance.

Apply this code when documentation clearly states poisoning by an antiprotozoal drug not otherwise specified, such as metronidazole, tinidazole, or other similar agents. This code is appropriate for accidental or intentional overdoses, as well as adverse reactions that reach a toxic level. Ensure the medical record specifies the drug class and the nature of the poisoning.

• Always sequence this code as a secondary diagnosis, following the primary code for the specific manifestation of the poisoning (e.g., coma, cardiac arrhythmia).
• Do not use this code for adverse effects occurring at therapeutic doses; those would typically fall under E-codes for adverse effects of drugs in therapeutic use.
• Verify that the drug involved is indeed an antiprotozoal and not an antibacterial or antifungal, as misclassification can lead to incorrect coding.