2027 ICD-10-CM Diagnosis Code F15.959Other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified
F15.959 is a billable ICD-10-CM diagnosis code for other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 894 through 897. Coders also document this condition as acute schizophrenia-like psychotic disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Schizophrenia spectrum and other psychotic disorders and Stimulant-related disorders.
For Medicare Advantage risk adjustment, F15.959 maps to CMS-HCC Category 135 (Drug Use with Psychotic Complications) under the V28 model, adding a risk factor of about 0.424 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
F15.959 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute schizophrenia-like psychotic disorder
- Mental disorder caused by methamphetamine
- Psychotic disorder caused by amphetamine
- Psychotic disorder caused by amphetamine and/or amphetamine derivative
- Psychotic disorder caused by methamphetamine
- Psychotic disorder caused by methylenedioxymethamphetamine
- Psychotic disorder caused by stimulant
- Psychotic disorder caused by synthetic cathinone
- Psychotic disorder with schizophreniform symptoms caused by synthetic cathinone
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F15.959: its own notes plus those printed at F15.9, F15, and Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- amphetamine-related disorders
- caffeine
- disorders of psychological development
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Amphetamine or other stimulant-induced psychotic disorder, without use disorder
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F15.959, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming F15.959: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Drug Use and Addiction
Drugs are chemical substances that can change how your body and mind work. They include prescription medicines, over-the-counter medicines, alcohol, tobacco, and illegal drugs.
The full article covers:
- What are drugs?
- What is drug use?
- What is drug addiction?
- Does everyone who takes drugs become addicted?
- Who is at risk for drug addiction?
- What are the signs that someone has a drug problem?
- What are the treatments for drug addiction?
- Can drug use and addiction be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F15.959 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F15.959Overview
Is F15.959 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F15.959 group to?
When other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 897, 895, 896, with relative weights from 0.6272 to 1.6610 depending on complications. Higher weights mean higher Medicare reimbursement.
Can F15.959 be reported with a code from F15.1?
Not as a rule. The Excludes1 note at F15.9, which applies to F15.959, lists "other stimulant abuse (F15.1-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of F15.959?
Under the General Equivalence Mappings, other stimulant use, unspecified with stimulant-induced 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.
What HCC is F15.959?
F15.959 (other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified) maps to CMS-HCC Category 135 (Drug Use with Psychotic Complications), commonly written as HCC 135, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 54 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. It does not map to any RxHCC in the Part D prescription drug model.
Does F15.959 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, F15.959 adds a risk adjustment factor of about 0.424 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.297 to 1.181 depending on the payment segment). HCC 135 sits at the top of its hierarchy, so no other condition category supersedes it. See the full factor table on the HCC 135 category page.
