Undrdose of selective seroton/norepineph reup inhibtr, init

This code signifies that a patient has taken less than the prescribed amount of a selective serotonin and norepinephrine reuptake inhibitor (SNRI), leading to an adverse effect or a worsening of their underlying condition. This underdosing can be intentional or unintentional, resulting in insufficient therapeutic levels of the medication.

Apply this code when a patient presents with symptoms related to inadequate SNRI levels due to underdosing, such as a relapse of depression or anxiety, or withdrawal symptoms. This is appropriate for the initial visit where the underdosing is identified and addressed.

• Always assign an additional code for the specific adverse effect or condition being treated (e.g., recurrent depression).
• Remember the "A" suffix indicates an initial encounter for the underdosing event.
• Distinguish underdosing from noncompliance (Z91.12- for medication regimen) when the underdosing directly causes an adverse effect.