Underdosing of cocaine, initial encounter

This code signifies a patient's adverse reaction or consequence due to taking less cocaine than prescribed or intended, leading to a suboptimal therapeutic effect or withdrawal symptoms. It indicates that the underdosing event is the primary reason for the current encounter.

Apply this code when a patient presents to an emergency department or clinic with symptoms directly attributable to insufficient cocaine intake, such as withdrawal symptoms or a lack of desired therapeutic effect in a controlled setting. This is appropriate for the initial assessment and management of the underdosing event.

• Ensure the documentation clearly states that the patient received less than the intended or prescribed dose of cocaine.
• This "initial encounter" character indicates the patient is actively receiving treatment for the underdosing event.
• Always sequence this code as the primary diagnosis if it is the reason for the encounter.