Underdosing of stimulant laxatives, initial encounter

This code signifies a patient's condition resulting from taking less than the prescribed or recommended dose of a stimulant laxative. This underdosing may lead to a recurrence or persistence of the underlying condition the laxative was intended to treat, such as chronic constipation. The "initial encounter" designation indicates that the patient is receiving active treatment for the immediate effects of this underdosing.

Apply this code when a patient presents for treatment of symptoms directly attributable to insufficient intake of a stimulant laxative. This includes situations where the patient admits to taking less than directed, or when clinical assessment suggests underdosing as the cause of ongoing bowel issues. This code is appropriate for the first visit related to this specific underdosing event.

• Always sequence this code after the code for the condition being treated (e.g., constipation).
• Ensure documentation clearly states "underdosing" and specifies the type of laxative (stimulant).
• For subsequent visits related to the same underdosing event, use the appropriate subsequent encounter or sequela character.