F16.91 Hallucinogen use, unspecified, in remissionBillable ICD-10-CM code, FY2026.
Defines the logic of DRG(s) 894-897 in MDC 20.
F16.1 Hallucinogen abuse ("hallucinogen use, unspecified (F16.9-)")F16.2 Hallucinogen dependence ("hallucinogen use, unspecified (F16.9-)")F02 Dementia in other diseases classified elsewhere ("dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)")F06 Other mental disorders due to known physiological condition ("other mental disorders associated with alcohol and other psychoactive substances (F10-F19)")F06.0 Psychotic disorder with hallucinations due to known physiological condition ("hallucinations and perceptual disturbance induced by alcohol and other psychoactive substances (F10-F19 with .151, .251, .951)")F06.2 Psychotic disorder with delusions due to known physiological condition ("alcohol and drug-induced psychotic disorder (F10-F19 with .150, .250, .950)")F06.3 Mood disorder due to known physiological condition ("mood disorders due to alcohol and other psychoactive substances (F10-F19 with .14, .24, .94)")F06.4 Anxiety disorder due to known physiological condition ("anxiety disorders due to alcohol and other psychoactive substances (F10-F19 with .180, .280, .980)")F20 Schizophrenia ("psychoactive drug use (F11-F19 with .15. .25, .95)")F55 Abuse of non-psychoactive substances ("abuse of psychoactive substances (F10-F19)")F63 Impulse disorders ("habitual excessive use of alcohol or psychoactive substances (F10-F19)")F63.1 Pyromania ("alcohol or psychoactive substance intoxication (F10-F19)")O99.32 Drug use complicating pregnancy, childbirth, and the puerperium ("code(s) from F11-F16 and F18-F19 to identify manifestations of the drug use")R41.3 Other amnesia ("amnestic syndrome due to psychoactive substance use (F10-F19 with 5th character .6)")R44 Other symptoms and signs involving general sensations and perceptions ("hallucinations in drug psychosis (F11-F19 with fifth to sixth characters 51)")R78 Findings of drugs and other substances, not normally found in blood ("mental or behavioral disorders due to psychoactive substance use (F10-F19)")Z71.5 Drug abuse counseling and surveillance ("code for drug abuse or dependence (F11-F16, F18-F19)")Z79 Long term (current) drug therapy ("drug abuse and dependence (F11-F19)")F16.283 Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)F16.288 Hallucinogen dependence with other hallucinogen-induced disorderF16.29 Hallucinogen dependence with unspecified hallucinogen-induced disorderF16.9 Hallucinogen use, unspecifiedF16.90 Hallucinogen use, unspecified, uncomplicatedF16.91 Hallucinogen use, unspecified, in remission (this code)F16.92 Hallucinogen use, unspecified with intoxicationF16.920 Hallucinogen use, unspecified with intoxication, uncomplicatedF16.921 Hallucinogen use, unspecified with intoxication with deliriumF16.929 Hallucinogen use, unspecified with intoxication, unspecifiedF16.94 Hallucinogen use, unspecified with hallucinogen-induced mood disorder