Underdosing of centr-acting/adren-neurn-block agnt, subs

This code indicates that a patient is experiencing an adverse effect or complication due to taking less than the prescribed amount of a centrally-acting or adrenergic-neuron-blocking medication. This underdosing is occurring during a follow-up visit for the initial problem or treatment.

Use this code when a patient presents for ongoing management of a condition, and their current symptoms or lack of improvement are attributed to not taking enough of their prescribed centrally-acting or adrenergic-neuron-blocking agent. This could include situations where a patient is intentionally taking less medication, forgetting doses, or experiencing barriers to adherence.

• Always sequence this code after the code(s) for the specific condition being treated by the underdosed medication.
• Ensure documentation clearly states the underdosing is the cause of the current clinical presentation and that this is a subsequent encounter.
• Distinguish from initial encounters (A) or sequela (S) by verifying the encounter type in the medical record.