Underdosing of other hormone antagonists, subs encntr

This code indicates that a patient is experiencing adverse effects or complications due to receiving an insufficient amount of a hormone antagonist medication. This underdosing is occurring during a follow-up visit for the condition being treated or for the adverse effect itself.

Apply this code when documentation clearly states that a patient's symptoms or condition are worsening or not improving due to a prescribed hormone antagonist being administered at a dose lower than therapeutically intended. This is appropriate for follow-up appointments where the underdosing is being addressed or its consequences are being managed.

• Requires a fifth character of 'D' for subsequent encounter, indicating ongoing care for the underdosing or its effects.
• Always sequence this code after the primary diagnosis for the condition being treated by the hormone antagonist.
• Ensure documentation specifies "underdosing" and identifies the specific class of medication as a "hormone antagonist."