Hallucign depend w hallucign persisting perception disorder

This diagnosis code signifies a patient's physiological and psychological dependence on hallucinogenic substances, coupled with the persistent re-experiencing of hallucinogen-induced perceptual disturbances, commonly known as flashbacks. These flashbacks are spontaneous, recurrent, and distressing, occurring long after the acute effects of the hallucinogen have worn off.

Use this code when documentation clearly indicates a diagnosis of hallucinogen dependence and the presence of hallucinogen persisting perception disorder (HPPD). This typically applies to patients presenting with ongoing perceptual distortions, such as visual trails, halos, or intensified colors, alongside a history and current evidence of hallucinogen dependence. The provider's assessment should explicitly link the flashbacks to prior hallucinogen use.

• Ensure documentation specifies both "dependence" and "hallucinogen persisting perception disorder" or "flashbacks" to support this specific code.
• Do not confuse with acute hallucinogen intoxication or withdrawal, which are coded separately.
• Sequence this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis if it is a co-occurring condition impacting treatment.