Underdosing of opium, subsequent encounter

This code indicates that a patient is experiencing the effects of taking less opium than prescribed or recommended, during a follow-up visit for the underdosing event. This could manifest as a return of symptoms that the opium was intended to treat, or withdrawal symptoms due to insufficient dosage.

Use this code when documenting a patient's follow-up care for issues arising from taking too little opium, whether intentionally or unintentionally. This applies to situations where the patient is being monitored or treated for the consequences of the underdosing after the initial encounter.

• Ensure documentation clearly specifies "underdosing" and "subsequent encounter" for opium.
• Always sequence this code after the primary diagnosis indicating the specific manifestation or consequence of the underdosing.
• Do not use for initial encounters or for adverse effects from correct dosage.