Underdosing of aminoglycosides, initial encounter

This code signifies that a patient has received an insufficient amount of an aminoglycoside antibiotic, leading to a suboptimal therapeutic effect or treatment failure. Underdosing can result from various factors, including incorrect prescription, patient non-adherence, or altered drug metabolism.

Apply this code when documentation clearly indicates that a patient's condition is not improving or is worsening due to an inadequate dose of an aminoglycoside. This is particularly relevant when the patient is presenting for the initial evaluation or treatment of the underdosing event.

• Ensure documentation specifies the drug class as an aminoglycoside.
• Confirm the encounter is the initial one for the underdosing event.
• Consider additional codes for the underlying condition being treated and any resulting complications from the underdosing.