1. The development of memory impairment as manifested by impairment in the ability to learn new information or the inability to recall previously learned information.
2. The memory disturbance causes significant impairment in social or occupational functioning and represents a significant decline from a previous level of functioning.
3. The memory disturbance does not occur exclusively during the course of a delirium or a dementia and persists beyond the usual duration of substance intoxication or withdrawal.
4. There is evidence from the history, physical examination, or laboratory findings that the memory disturbance is etiologically related to the persisting effects of substance use (e.g., a drug of abuse, a medication).

Code (Specific substance)-induced persisting amnestic disorder: (Alcohol; Sedative, hypnotic, or anxiolytic; Other [or unknown] substance)