Underdosing of antigonadtr/antiestr/antiandrg, NEC, sequela

This code indicates a long-term complication or condition arising from a patient not receiving enough of their prescribed antigonadotrophin, antiestrogen, or antiandrogen medication. This underdosing has led to a persistent health issue that is a direct consequence of the insufficient medication. The original underdosing event itself is in the past, and this code describes the lasting effect.

Use this code when documenting a current condition that is a sequela of a past underdosing of the specified hormone-related medications. This applies, for example, when a patient presents with a recurrence of a hormone-sensitive cancer due to chronic underdosing of an antiestrogen, or persistent symptoms of a condition that was being managed by an antiandrogen, where the underdosing is identified as the root cause of the current problem.

• This code is for the sequela (late effect) of underdosing, not the acute underdosing event itself.
• Always code the specific sequela condition first, followed by this code to indicate its etiology.
• Ensure documentation clearly links the current condition to the past underdosing of the specified drug classes.