2026 ICD-10-CM Diagnosis Code F12.959Cannabis use, unspecified with psychotic disorder, unspecified

ICD-10-CM Codes›F01–F99›F10-F19›F12

ICD-10-CM F12.959
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F12.959 is a billable ICD-10-CM diagnosis code for cannabis use, unspecified with psychotic disorder, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 894 through 897. Coders also document this condition as cannabis-induced organic mental disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cannabis-related disorders and Schizophrenia spectrum and other psychotic disorders.

Code Identity

ICD-10-CM Code
F12.959
Billable Status
Yes — Valid for Submission
Code Describes
Cannabis use, unspecified with psychotic disorder, unspecified
Short Description
Cannabis use, unsp with psychotic disorder, unspecified
Parent Code
F12.95
Cannabis use, unspecified with psychotic disorder

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF10-F19Mental and behavioral disorders due to psychoactive substance use
CategoryF12Cannabis related disorders
This CodeF12.959Cannabis use, unspecified with psychotic disorder, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cannabis-induced organic mental disorder
  • Psychotic disorder caused by cannabis
  • Psychotic disorder caused by hallucinogen
  • Psychotic disorder caused by synthetic cannabinoid

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Cannabis induced psychotic disorder, without use disorder

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cannabis induced
      • psychotic disorder
    • Use(of)
      • cannabis
        • with
          • psychosis

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD019
Cannabis-related disorders
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR MBD001
Schizophrenia spectrum and other psychotic disorders
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Marijuana

Marijuana is a green, brown, or gray mix of dried, crumbled parts from the marijuana plant. The plant contains chemicals which act on your brain and can change your mood or consciousness.

The full article covers:

  • What is marijuana?
  • How do people use marijuana?
  • What are the effects of marijuana?
  • Can you overdose on marijuana?
  • Is marijuana addictive?
  • What is medical marijuana?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F12.959 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
292.89 Drug mental disorder NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F12.959Overview

Is F12.959 (Cannabis use, unspecified with psychotic disorder) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report cannabis use, unspecified with psychotic disorder, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does F12.959 group to?

When cannabis use, unspecified with psychotic disorder, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 895, 896, 897, with relative weights from 0.6169 to 1.7451 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F12.959?

Under the General Equivalence Mappings, cannabis use, unspecified with psychotic disorder, unspecified converts to ICD-9-CM 292.89 (drug mental disorder NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.