Underdosing of unspecified hormone antagonists, subs encntr

This code signifies that a patient is experiencing adverse effects or complications due to receiving an insufficient amount of an unspecified hormone antagonist. This underdosing is not a new issue but rather a problem identified during a follow-up or subsequent encounter for the condition. The specific hormone antagonist involved is not documented.

Use this code when a patient presents for ongoing management of a condition, and it's determined that their prescribed, but unspecified, hormone antagonist medication was underdosed, leading to a recurrence or worsening of symptoms. This applies to situations where the underdosing is not the initial event but rather a problem identified during a subsequent visit.

• Ensure documentation clearly indicates "underdosing" and that the encounter is not the initial treatment for the underdosing event.
• Only use this code when the specific hormone antagonist is not identified in the medical record. If known, a more specific code from T38.9- should be used.
• Always sequence this code after the code(s) for the condition being treated by the hormone antagonist, as it describes a complication of that treatment.