Underdosing of other psychotropic drugs, subs encntr

This code indicates that a patient is experiencing the effects of taking less than the prescribed or recommended amount of a psychotropic medication, excluding antidepressants, antipsychotics, and psychostimulants. This underdosing is occurring during a follow-up visit for the condition or complication arising from the insufficient dosage.

Apply this code when a patient presents for ongoing management of a condition exacerbated or caused by not taking enough of a psychotropic drug (e.g., anxiolytics, sedatives, hypnotics) and this is not the initial encounter for the underdosing event. This would include situations where a patient is not adhering to their medication regimen, leading to a recurrence or worsening of symptoms.

• Always use in conjunction with a code for the specific mental or behavioral disorder being treated.
• Ensure the encounter is truly "subsequent" and not the initial presentation of the underdosing issue.
• Distinguish from poisoning (overdosing or adverse effects) and therapeutic use.