Adverse effect of other antiprotozoal drugs, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to an antiprotozoal medication, other than those specifically classified elsewhere. This means the patient experienced an undesirable and unintended effect from the drug, and now has a lasting health problem directly attributable to that past adverse event. The sequela could manifest in various organ systems, depending on the drug and the nature of the initial adverse effect.

Use this code when documenting a chronic or permanent condition that is a direct consequence of a previous adverse effect from an antiprotozoal drug not otherwise specified. This applies when the acute adverse effect has resolved, but a residual problem persists. Examples include chronic liver damage after antimalarial toxicity, persistent neuropathy following metronidazole, or long-term dermatological issues from other antiprotozoal agents.

• Always sequence the code for the specific sequela first, followed by this code to indicate its etiology.
• Ensure documentation clearly links the current chronic condition to a past adverse effect of an antiprotozoal drug.
• Distinguish from acute adverse effects, which would use the initial encounter or subsequent encounter codes for adverse effects.