Billable / Specific Code
ICD-10-CM F16.959 is the diagnosis code for Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified. This code falls under the section "Mental and behavioral disorders due to psychoactive substance use" within Chapter 5 — Mental, Behavioral and Neurodevelopmental disorders (F01-F99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where F16.959 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, F16.959 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
F16.959 is the ICD-10-CM diagnosis code for "Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of F16.959 is F16.95 ("Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder"). F16.959 provides a more specific classification within this category.
F16.959 is located in Section F10-F19 — "Mental and behavioral disorders due to psychoactive substance use" within Chapter 5 of the ICD-10-CM Tabular List.
Use F16.959 when the patients documented diagnosis matches "Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified is F16.959.
Yes, F16.959 can be used as a primary diagnosis code since it is billable and specific.
F16.959 is in Chapter 5 of the ICD-10-CM Tabular List.
Yes, F16.959 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.