Skip to content
HCC Buddy home

F15.950 ICD-10-CM Code: Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions

F15.950 maps to CMS-HCC V28 135. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · HCC coding software

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

Code lookupF15.950

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Mental and behavioral disorders due to psychoactive substance use (F10-F19)

F15.950

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions

A serious mental condition where stimulant drug use causes psychotic symptoms including false beliefs (delusions) in someone with unspecified use pattern.

Buddy the Bee presenting code insight

Buddy Insight

Stimulant use, unspecified with stimulant-induced psychotic disorder with delusions represents a severe psychiatric presentation where psychosis with delusions develops in the context of stimulant use.

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

HCC 135

Coefficient HCC 135: 0.424 (Community Non-Dual Aged (CNA))

CMS-HCC V24

Historical

Historical

Not used for CY2026 payment

ACA/HHS

HCC 081

Code-level coefficient reference

ESRD/PACE

HCC 54

Code-level coefficient reference

RXHCC

N/A

—

Not mapped

Code Book Path

Official
F15.9Other stimulant use, unspecifiedF15.95Other stimulant use, unspecified with stimulant-induced psychotic disorderF15.950Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions

Inclusion Terms

Official

No inclusion terms are included in this display for F15.950. Check the code and parent instructions in the Code Book.

Excludes 2

Official
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99, F15
  • cocaine-related disorders (F14.-)Inherited from F01-F99, F15

Related Codes

Official
F15.951Other stimulant use, unspecified with stimulant-induced psychotic disorder with hallucinationsF15.959Other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified

Includes

Official
  • disorders of psychological developmentInherited from F01-F99, F15
  • amphetamine-related disordersInherited from F01-F99, F15
  • caffeineInherited from F01-F99, F15

Excludes 1

Official
  • other stimulant abuse (F15.1-)Inherited from F15.9
  • other stimulant dependence (F15.2-)Inherited from F15.9

Code First

Official

No Code First sequencing instructions are included in this display for F15.950. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for F15.950. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for F15.950. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance
Documentation of stimulant use (specific substance when possible)
Psychotic symptoms specifically characterized as delusions
Temporal relationship between stimulant use and onset of delusions
Documentation ruling out primary psychotic disorder

MEAT Support

HCC Buddy guidance
Documentation of stimulant use (specific substance when possible)
Psychotic symptoms specifically characterized as delusions
Temporal relationship between stimulant use and onset of delusions
Documentation ruling out primary psychotic disorder

Audit Caution

HCC Buddy guidance
Using this unspecified code when the record documents abuse or dependence status elsewhere
Confusing paranoia during acute intoxication with a persistent delusional disorder
Not documenting the specific type of delusions for clinical clarity
Coding primary psychotic disorders when symptoms are clearly substance-induced

Common Mistakes

HCC Buddy guidance
F15.150 — Stimulant abuse with psychotic disorder with delusions; use when abuse is documented
F15.250 — Stimulant dependence with psychotic disorder with delusions; use when dependence is documented
F15.951 — Stimulant use, unspecified with psychotic disorder with hallucinations; hallucinations vs. delusions
F22 — Delusional disorder; primary delusional disorder, not substance-induced

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is F15.950 an HCC code?

Yes. F15.950 (Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions) maps to HCC 135, Drug Use with Psychotic Complications under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.424. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: F15.950 is billable and maps to V28 HCC 135, Drug Use with Psychotic Complications. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code
F15.950
Description
Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions
HCC (V28)
HCC 135 — Drug Use with Psychotic Complications
RAF reference coefficient
0.424
Billable
Yes
Payment year
2026

HCC Category Mapping

V28HCC 135, Drug Use with Psychotic Complications
0.424
ESRDHCC 54, Substance Use with Psychotic Complications
Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work F15.950 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for F15.950

For F15.950, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

  • MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
  • EEvaluate: test results, medication response, or physical findings reviewed by the provider
  • AAssess: explicit mention in the assessment or plan with acknowledgment of status
  • TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Coder workflow notes

Get the V28 mapping + MEAT cheat sheet

One printable reference: check representative V28 mappings and the documentation reminders your note needs. Free, no card.

Free PDF. No card. Unsubscribe anytime.

What This Code Means

F15.950 is the ICD-10-CM diagnosis code for other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions. A serious mental condition where stimulant drug use causes psychotic symptoms including false beliefs (delusions) in someone with unspecified use pattern. F15.950 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering mental and behavioral disorders due to psychoactive substance use (f10-f19).

Under the CMS-HCC V28 risk adjustment model, F15.950 maps to Drug Use with Psychotic Complications (HCC 135) with a source-labeled community, non-dual, aged reference coefficient of 0.424. No V24 mapping is shown for F15.950; use the applicable model and payment year when reviewing the V28 mapping. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Document the specific type of delusions (paranoid, grandiose, etc.) if available for clinical clarity. For F15.950, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F15.950 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • •Document the specific type of delusions (paranoid, grandiose, etc.) if available for clinical clarity
  • •This is a more severe presentation requiring psychiatric evaluation and possible hospitalization

Clinical Significance

Stimulant use, unspecified with stimulant-induced psychotic disorder with delusions represents a severe psychiatric presentation where psychosis with delusions develops in the context of stimulant use. Despite the unspecified use pattern, the psychotic features elevate this to the highest substance use HCC category. This code is commonly used when acute psychosis is the presenting complaint and full substance use history is not yet available.

Documentation Requirements

  • ✓Documentation of stimulant use (specific substance when possible)
  • ✓Psychotic symptoms specifically characterized as delusions
  • ✓Temporal relationship between stimulant use and onset of delusions
  • ✓Documentation ruling out primary psychotic disorder
  • ✓Psychiatric evaluation and treatment plan
  • ✓Query to provider regarding abuse vs. dependence status

Commonly Confused Codes

  • •F15.150: Stimulant abuse with psychotic disorder with delusions; use when abuse is documented
  • •F15.250: Stimulant dependence with psychotic disorder with delusions; use when dependence is documented
  • •F15.951: Stimulant use, unspecified with psychotic disorder with hallucinations; hallucinations vs. delusions
  • •F22: Delusional disorder; primary delusional disorder, not substance-induced

Child Codes

F15.950Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions
HCC 135
F15.951Other stimulant use, unspecified with stimulant-induced psychotic disorder with hallucinations
HCC 135
F15.959Other stimulant use, unspecified with stimulant-induced psychotic disorder, unspecified
HCC 135

Code Hierarchy

└F15Other stimulant related disorders└F15.9Other stimulant use, unspecified└F15.95Other stimulant use, unspecified with stimulant-induced psychotic disorder└F15.950Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions
└F15.950Other stimulant use, unspecified with stimulant-induced psychotic disorder with delusions

Also searched as

  • F15 950
  • F15950

For F15.950, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

F15.950 maps to CMS-HCC V28 category 135, Drug Use with Psychotic Complications. See the ICD-10 to HCC mapping hub for how the V28 crosswalk works. The mapping identifies a payment HCC category for F15.950. Review its source-labeled HCC coefficient above, check the RAF Calculator with complete member context for CMS-HCC V28 PY2026, and confirm the documentation the chart needs before the code is submitted. HCC Buddy shows no RAF score unless every required source and calculation check passes.

Work F15.950 in HCC Buddy

Open F15.950 in the Code Book for the full Index-to-Tabular path, MEAT checklist, and V28 HCC mapping, or in the Encoder to code from a keyword search. Pro includes 7 days to try everything, no card required.

Open in Code BookOpen in EncoderStart Pro