Opioid abuse with intoxication delirium

This code signifies a diagnosis of opioid abuse, characterized by a maladaptive pattern of opioid use leading to clinically significant impairment or distress, specifically complicated by delirium due to acute opioid intoxication. The delirium involves a disturbance in attention, awareness, and cognition that developed over a short period and fluctuates in severity.

Apply this code when documentation clearly indicates a patient's problematic pattern of opioid use meets criteria for abuse, and they are experiencing delirium directly attributable to acute opioid intoxication. Supporting documentation should detail the patient's opioid use history, signs and symptoms of delirium (e.g., disorientation, fluctuating consciousness, cognitive impairment), and a clear link between the intoxication and the delirium.

• Differentiate from opioid dependence with intoxication delirium (F11.221); abuse implies a less severe pattern of use without physiological dependence.
• Ensure documentation explicitly states "delirium" and links it to "intoxication" from opioids, not just general confusion or altered mental status.
• Sequence this code as the primary diagnosis when the opioid abuse with intoxication delirium is the reason for the encounter.