Undrdose of selective seroton/norepineph reup inhibtr, subs

This code indicates that a patient is receiving less than the prescribed or recommended dosage of a selective serotonin and norepinephrine reuptake inhibitor (SSNRI). This underdosing is causing an adverse effect or is the reason for the current medical encounter. It signifies that the patient is actively being treated for the consequences of this insufficient medication intake.

Use this code when documenting a patient visit where the underdosing of an SSNRI is being addressed, and it's not the initial encounter for this specific issue. This includes situations where a patient presents with worsening depression or anxiety symptoms due to not taking their SSNRI as prescribed, or when a physician is managing complications arising from chronic underdosing.

• Always assign an additional code for the specific adverse effect or condition resulting from the underdosing (e.g., recurrent major depressive disorder).
• Ensure documentation clearly states that the underdosing is the reason for the encounter and that it's a subsequent visit.
• Distinguish from poisoning or adverse effect codes, as underdosing implies the patient is taking some medication, just not enough.