Schizophrenia HCC Coding Guide
Schizophrenia (e.g. F20.0) maps to HCC 151 (Schizophrenia) under the CMS-HCC V28 risk adjustment model, with a community, non-dual, aged RAF weight of 0.511; V28 reached 100% phase-in for payment year 2026.
Complete HCC coding guide for Schizophrenia (F20.x) including ICD-10 to HCC mapping, V28 RAF weights, subtype documentation, and psychotic disorder coding.
Medically reviewed by Jess P., CPC · Reviewed: May 9, 2026 · Updated for CMS-HCC V28 and FY2026 ICD-10-CM
Quick Facts
HCC Categories
HCC 151, Schizophrenia
RAF Weight Range
0.511
Community, non-dual, aged (V28)
Model
CMS-HCC V28 (PY2026, 100% phase-in)
10 ICD-10 codes map to payment HCCs
What HCC category does Schizophrenia map to under V28?
Schizophrenia is a chronic psychotic disorder requiring lifelong management and intensive support services. Under CMS-HCC V28, the F20 schizophrenia codes map to HCC 151 (Schizophrenia), which carries a community non-dual aged RAF of 0.511, reflecting the high utilization tied to this population. Accurate coding requires documenting the specific subtype (paranoid, disorganized, catatonic, undifferentiated, residual) along with current symptoms or treatment. The F20 category covers schizophrenia itself, while schizoaffective disorder (F25) and other psychotic disorders carry separate codes that may map to different categories, so do not assume every psychotic-spectrum diagnosis lands in HCC 151. Provider documentation must clearly establish the diagnosis at each encounter, and annual recapture remains essential for risk adjustment.
ICD-10 to HCC Mapping
| ICD-10 Code | Description | Billable | HCC Mapping |
|---|---|---|---|
| F20.0 | Paranoid schizophrenia | Yes | HCC 151 |
| F20.1 | Disorganized schizophrenia | Yes | HCC 151 |
| F20.2 | Catatonic schizophrenia | Yes | HCC 151 |
| F20.3 | Undifferentiated schizophrenia | Yes | HCC 151 |
| F20.5 | Residual schizophrenia | Yes | HCC 151 |
| F20.9 | Schizophrenia, unspecified | Yes | HCC 151 |
| F20.81 | Schizophreniform disorder | Yes | HCC 151 |
| F25.0 | Schizoaffective disorder, bipolar type | Yes | HCC 151 |
| F25.1 | Schizoaffective disorder, depressive type | Yes | HCC 151 |
| F25.9 | Schizoaffective disorder, unspecified | Yes | HCC 151 |
RAF weights are community, non-dual, aged base coefficients from the CMS-HCC V28 model (PY2026). Verify against the latest CMS rate announcement for payment calculations.
HCC Buddy maps Schizophrenia from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Documentation Tips
Document the specific subtype of schizophrenia when known: paranoid, disorganized, catatonic, undifferentiated, or residual.
Record current symptoms: positive symptoms (hallucinations, delusions, disorganized speech) and negative symptoms (flat affect, alogia, avolition).
Document current antipsychotic medication regimen and any recent medication changes to satisfy MEAT treatment criteria.
Include functional status assessment: social functioning, occupational functioning, self-care abilities.
Note any co-occurring substance use disorders which are common and should be coded separately.
Document the course specifiers: continuous, episodic with interepisode residual symptoms, first episode in acute or partial/full remission.
Common Coding Mistakes
Coding F20.9 (unspecified schizophrenia) when the provider has documented a specific subtype such as paranoid or residual.
Not recapturing schizophrenia at annual encounters, the diagnosis must be actively documented each year for risk adjustment.
Confusing schizoaffective disorder (F25) with schizophrenia (F20), they are distinct diagnoses with separate codes, though both map to HCC 154.
Failing to code co-occurring conditions (substance use disorders, metabolic syndrome, depression) that commonly accompany schizophrenia.
V24 to V28 Changes
V28 maps the F20 schizophrenia codes to HCC 151 (Schizophrenia), a dedicated category that recognizes the significant costs of chronic psychotic disorders. The community non-dual aged RAF of 0.511 reflects the intensive treatment, monitoring, and support services this population requires. The model renumbered and recalibrated HCC categories across the board when it moved from the prior version to V28, so legacy crosswalks and older flashcards may show outdated category numbers. Schizophrenia remains a recognized behavioral health HCC under V28. Coders should map from the current ICD-10 code to the V28 category rather than relying on memory, since the F20 subtypes all resolve to HCC 151 while related psychotic disorders can route elsewhere.
Related Conditions
Related references
Sources
RAF weights are community, non-dual, aged base coefficients from the CMS-HCC V28 model (PY2026). Verify against the latest CMS Rate Announcement for payment.
Verified current to CMS-HCC V28, payment year 2026 — last reviewed May 9, 2026.
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