Oth psychoactive substance use, unsp w withdrawal delirium

This code signifies a patient experiencing withdrawal delirium due to the use of a psychoactive substance that is not specified or identifiable. This condition involves acute brain dysfunction characterized by fluctuating consciousness, disorientation, hallucinations, and autonomic instability, occurring after cessation or reduction of substance use. The specific psychoactive substance causing the withdrawal is unknown.

Apply this code when documentation clearly indicates withdrawal delirium as a consequence of psychoactive substance use, but the specific substance (e.g., opioid, cannabis, stimulant) is not identified. This is appropriate when the clinician diagnoses withdrawal delirium and attributes it to a psychoactive substance without further specification.

• Ensure documentation explicitly states "withdrawal delirium" and "psychoactive substance use, unspecified."
• Do not use if the specific psychoactive substance is known; instead, code to the specific substance's withdrawal delirium code (e.g., F10.931 for alcohol).
• Sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if another condition is the primary reason for admission/visit.