Underdosing of fluoroquinolone antibiotics, init

This code signifies that a patient has not received the prescribed or appropriate dosage of a fluoroquinolone antibiotic. This underdosing can lead to ineffective treatment of the underlying infection, potentially contributing to treatment failure, prolonged illness, or the development of antibiotic resistance.

Apply this code when documentation indicates a patient is taking less than the prescribed amount of a fluoroquinolone, or when a healthcare provider determines that an insufficient dose was administered. This includes situations where a patient self-reduces their medication, or when a prescribing error or dispensing error results in an inadequate dose.

• Ensure documentation clearly specifies "underdosing" and identifies the drug class as fluoroquinolone.
• This "initial encounter" code is used for the period when the patient is receiving active treatment for the underdosing or its complications.
• Always code the underlying condition being treated by the fluoroquinolone first, followed by this underdosing code.