Adverse effect of aspirin, subsequent encounter

This code signifies a harmful or undesirable reaction to aspirin that occurs after the initial treatment of the adverse effect. It indicates that the patient is receiving follow-up care for a condition caused by aspirin, such as gastrointestinal bleeding, tinnitus, or an allergic reaction. The adverse effect is not new but is being managed or monitored during a subsequent visit.

Apply this code when a patient presents for ongoing management, monitoring, or treatment of a previously diagnosed adverse effect of aspirin. This includes situations where the patient is returning for a check-up related to the aspirin-induced condition, or for further intervention after the initial acute phase has passed.

• Always sequence the code for the specific adverse effect (e.g., K92.1 for melena due to aspirin) before this code.
• Ensure documentation clearly indicates the adverse effect is due to aspirin and that the encounter is for follow-up care.
• Distinguish from initial encounters (A) or sequela (S) by carefully reviewing the encounter type and patient's treatment phase.