Adverse effect of enzymes, initial encounter

This code signifies an undesirable or harmful reaction experienced by a patient due to the therapeutic use of an enzyme, such as digestive enzymes, thrombolytics, or other enzyme-based medications. These reactions are not due to an overdose or poisoning but rather an expected, though adverse, response to a correctly administered dose.

Apply this code when documenting a patient's initial presentation for symptoms directly attributable to an adverse effect of an enzyme medication. This includes allergic reactions, gastrointestinal disturbances, or other systemic effects that occur during the course of enzyme therapy. It is appropriate for the first time the patient is seen for this specific adverse event.

• Always sequence this code first when it is the primary reason for the encounter.
• Ensure documentation clearly links the adverse effect to a specific enzyme medication.
• Do not use for poisoning, underdosing, or allergic reactions to substances other than enzymes.