Underdosing of cocaine, subsequent encounter

This code signifies a patient's underdosing of cocaine during a follow-up visit or encounter for a condition directly related to the initial underdosing. Underdosing implies the patient took less of the substance than prescribed or instructed, or less than is typically consumed, leading to adverse effects or a lack of therapeutic effect.

Apply this code when a patient presents for ongoing care, monitoring, or treatment of complications arising from a previous instance of cocaine underdosing. This includes situations where the patient is experiencing withdrawal symptoms due to insufficient cocaine intake, or if they are being managed for a condition that worsened because of inadequate cocaine levels.

• Always sequence this code after the code(s) for the specific manifestation(s) of the underdosing.
• Ensure documentation clearly indicates that the underdosing occurred previously and this is a subsequent encounter for related issues.
• Do not use for initial encounters or for poisoning/toxicity due to cocaine.