Adverse effect of iminostilbenes, subsequent encounter

This code signifies an undesirable or harmful reaction experienced by a patient due to the therapeutic use of an iminostilbene medication, such as carbamazepine or oxcarbazepine. The "subsequent encounter" indicates that the patient is receiving ongoing care for the adverse effect after the initial treatment.

Apply this code when a patient presents for follow-up, monitoring, or continued management of an adverse effect from an iminostilbene drug. This includes situations where the patient is being treated for symptoms like rash, dizziness, or liver enzyme abnormalities that developed from the medication.

• Always sequence the adverse effect code first, followed by codes for the specific manifestation(s) of the adverse effect.
• Ensure documentation clearly links the adverse effect to the iminostilbene medication.
• Distinguish from poisoning (T42.1X1-T42.1X4) or underdosing (T42.1X6-).