Adverse effect of aminoglycosides, subsequent encounter

This code signifies a harmful or undesirable reaction experienced by a patient due to the therapeutic use of an aminoglycoside antibiotic, occurring during a follow-up visit after the initial treatment of the adverse effect. It indicates that the patient is still under care for the sequelae of the drug's side effects.

Apply this code when a patient presents for ongoing management, monitoring, or treatment of an adverse effect caused by an aminoglycoside, such as ototoxicity or nephrotoxicity, and this is not the initial encounter for the adverse event. This is appropriate for subsequent clinic visits, hospital readmissions for complications, or follow-up appointments related to the drug reaction.

• Always sequence this code after the code(s) for the specific adverse effect (e.g., ototoxicity, nephrotoxicity).
• Ensure documentation clearly states the adverse effect is due to an aminoglycoside and that the encounter is not the initial treatment.
• Do not use for poisoning, overdose, or underdosing; those scenarios require different code categories.