Underdosing of other antidepressants, subsequent encounter

This code indicates that a patient is receiving less than the prescribed or recommended dosage of an antidepressant medication, excluding tricyclic antidepressants and monoamine oxidase inhibitors. This underdosing is causing a negative clinical effect or is the reason for the patient's current presentation. It signifies an ongoing issue with medication management for depression or other conditions treated with these specific types of antidepressants.

Apply this code when a patient presents for follow-up care related to the adverse effects of insufficient antidepressant medication, or when the underdosing is identified during a subsequent visit and requires intervention. This includes situations where the patient is not taking the medication as prescribed, or the prescribed dose is proving inadequate. It is appropriate for encounters after the initial treatment for the underdosing.

• This "D" encounter code is used for follow-up care after the initial management of the underdosing.
• Always sequence this code after the code(s) for the specific mental health condition being treated by the antidepressant.
• Ensure documentation clearly supports that the underdosing is the reason for the encounter or is contributing to the patient's current symptoms.