F23 ICD-10-CM Code: Brief psychotic disorder
F23 maps to CMS-HCC V28 152. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
F23
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceBrief psychotic disorder
A temporary mental health condition where a person experiences psychotic symptoms like hallucinations or delusions that last for a short period, typically triggered by extreme stress.
Buddy Insight
Brief psychotic disorder is a temporary psychotic state lasting from one day to less than one month, often triggered by severe psychological stress.
CMS-HCC V28
MappedHCC 152
Coefficient HCC 152: 0.484 (Community Non-Dual Aged (CNA))
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
Context neededHCC 087_2
Coefficient needs member context
ESRD/PACE
Context neededHCC 58
Coefficient needs member context
RXHCC
MappedHCC 130
Code-level coefficient reference
Code Book Path
Inclusion Terms
Official- Paranoid reaction
- Psychogenic paranoid psychosis
Excludes 2
Official- mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99
Related Codes
No related codes are included in this display for F23. Check the Code Book for the complete code path.
Includes
Official- disorders of psychological developmentInherited from F01-F99
Excludes 1
OfficialNo Excludes 1 notes are included in this display for F23. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for F23. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for F23. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for F23. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
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 F23 an HCC code?
Yes. F23 (Brief psychotic disorder) maps to HCC 152, Psychosis, Except Schizophrenia under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.484. 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: F23 is billable and maps to V28 HCC 152, Psychosis, Except Schizophrenia. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.
- Code
- F23
- Description
- Brief psychotic disorder
- HCC (V28)
- HCC 152 — Psychosis, Except Schizophrenia
- RAF reference coefficient
- 0.484
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
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 F23 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →
MEAT review for F23
For F23, 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
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What This Code Means
F23 is the ICD-10-CM diagnosis code for brief psychotic disorder. A temporary mental health condition where a person experiences psychotic symptoms like hallucinations or delusions that last for a short period, typically triggered by extreme stress. F23 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (f20-f29).
Under the CMS-HCC V28 risk adjustment model, F23 maps to Psychosis, Except Schizophrenia (HCC 152) with a source-labeled community, non-dual, aged reference coefficient of 0.484. No V24 mapping is shown for F23; 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.
Specify the duration and whether psychotic symptoms are present or in remission. For F23, 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 F23 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Specify the duration and whether psychotic symptoms are present or in remission
- •Document the precipitating stressor when available to support medical necessity
Clinical Significance
Brief psychotic disorder is a temporary psychotic state lasting from one day to less than one month, often triggered by severe psychological stress. Patients experience a sudden onset of at least one psychotic symptom (delusions, hallucinations, disorganized speech, or grossly disorganized behavior) and typically return to full premorbid functioning. While time-limited, the acute presentation can be severe and requires urgent psychiatric intervention and safety monitoring.
Documentation Requirements
- ✓Documentation of psychotic symptoms (delusions, hallucinations, disorganized speech/behavior)
- ✓Duration specified as less than one month with full return to premorbid functioning
- ✓Identification of any precipitating stressor when present
- ✓Assessment by a qualified mental health professional ruling out other psychotic disorders
- ✓Safety assessment including risk of harm to self or others
- ✓Follow-up plan to ensure symptoms have fully resolved and to monitor for recurrence
Excludes 2, Not included here, may code separately
Commonly Confused Codes
- •F20.81: Schizophreniform disorder lasts one to six months; brief psychotic disorder is under one month
- •F20.9: Schizophrenia requires at least six months of symptoms
- •F22: Delusional disorder requires at least one month of delusions
- •F19.950/F19.951: Substance-induced psychotic disorder should be used when psychosis is caused by substance use
- •F06.0/F06.2: Psychotic disorder due to medical condition should be ruled out