ICD-10-CM F16.9: Hallucinogen use, unspecified

ICD-10-CM Diagnosis Code (2025)

Official Description for F16.9

Hallucinogen use, unspecified

Coding Notes & Guidelines for F16.9

Excludes1: Not Coded Here
  • hallucinogen abuse (F16.1-)
  • hallucinogen dependence (F16.2-)
Inclusion Terms

Other hallucinogen intoxication delirium

Inclusion Terms
  • Other hallucinogen induced bipolar or related disorder, without use disorder
  • Other hallucinogen induced depressive disorder, without use disorder
  • Phencyclidine induced bipolar or related disorder, without use disorder
  • Phencyclidine induced depressive disorder, without use disorder
Inclusion Terms
  • Other hallucinogen induced psychotic disorder, without use disorder
  • Phencyclidine induced psychotic disorder, without use disorder
Inclusion Terms
  • Other hallucinogen-induced anxiety disorder, without use disorder
  • Phencyclidine induced anxiety disorder, without use disorder

Parent Code (Less Specific):

About ICD-10-CM Code F16.9 (Hallucinogen use)

ICD-10-CM code F16.9 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM F16.9 became effective on October 1, 2024.

This page provides detailed information about F16.9 - Hallucinogen use, unspecified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Hallucinogen use related to unspecified.