Adverse effect of oral contraceptives, subsequent encounter

This code indicates a patient is experiencing an unintended and undesirable reaction to oral contraceptive medication during a follow-up visit. These adverse effects are typically drug-induced and not due to accidental poisoning or overdose. The patient is receiving ongoing care for the sequelae of the initial adverse event.

Use this code when a patient presents for continued management or monitoring of symptoms directly attributable to their oral contraceptive use, after the initial adverse event has been documented. This applies to follow-up appointments for conditions like persistent nausea, breakthrough bleeding, mood changes, or hypertension that developed as a result of the contraceptive. It is appropriate for encounters where the focus is on assessing the ongoing impact or adjusting treatment for the adverse effect.

• Always sequence this code after the code(s) for the specific adverse effect(s) being treated.
• Ensure documentation clearly links the adverse effect to oral contraceptive use and specifies the encounter as subsequent.
• Distinguish from poisoning (T49.5X-) or underdosing (T49.5X6) of oral contraceptives.