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2 Minute MedicineICD-10 Lookup

ICD-10-CM code · FY2027

F16.9 Hallucinogen use, unspecified

Header codeNot billable: use one of the 13 billable codes below

About F16.9

Code
F16.9
Billable
No, header
Short description
Hallucinogen use, unspecified
Category
F16 Hallucinogen related disorders
Block
F10-F19 Mental and behavioral disorders due to psychoactive substance use
Chapter
5 Mental, Behavioral and Neurodevelopmental disorders
Code set
FY2027, October 1, 2026 to September 30, 2027

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Coding notes for F16.9

Excludes1 Not coded here: never report these together with this code (use the code given instead).

  • hallucinogen abuse (F16.1-)
  • hallucinogen dependence (F16.2-)

Also applies, from F16 Hallucinogen related disorders

Includes Conditions this code covers.

  • ecstasy
  • PCP
  • phencyclidine
Chapter 5 notes (apply to every code in it)

Includes Conditions this code covers.

  • disorders of psychological development

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Codes under F16.9 16

Related codes in F16

Latest research on hallucinogen related disorders

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