F16.9 - Hallucinogen use, unspecified
F16.98 - Hallucinogen use, unspecified with other specified hallucinogen-induced disorder
F16.980 - Hallucinogen use, unspecified with hallucinogen-induced anxiety disorder
F16.983 - Hallucinogen use, unspecified with hallucinogen persisting perception disorder (flashbacks)
F16.988 - Hallucinogen use, unspecified with other hallucinogen-induced disorder