MCMedicalCodingSoftware
F28

F28: Other psychotic disorder not due to a substance or known physiological condition

Billable / specific codeICD-10-CM

F28 is a billable, specific ICD-10-CM code for other psychotic disorder not due to a substance or known physiological condition. It is valid for submission on a claim.

Check F28 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Chronic hallucinatory psychosis
  • Other specified schizophrenia spectrum and other psychotic disorder

Risk adjustment

F28 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:

  • HCC 152 Psychosis, Except Schizophrenia0.484 RAF
  • HCC 152 Psychosis, Except Schizophrenia0.484 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

F28 is named in 20 Medicare coverage policies: 19 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56612Billing and Coding: CT of the Head
  • A56614Billing and Coding: Psychiatric Inpatient Hospitalization
  • A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing

Alphabetic index entries that lead here

  • Hallucinosis(chronic)
  • Insanity, insane›confusional
  • Menopause, menopausal›psychosis NEC
  • Psychosis, psychotic›hallucinatory, chronic
  • Psychosis, psychotic›involutional
  • Disorder›schizophrenia spectrum and other psychotic disorder›specified NEC
  • Psychosis, psychotic›nonorganic›specified NEC
  • Schizophrenia, schizophrenic›spectrum and other psychotic disorder›specified NEC

Code history

Unchanged in every release from FY2024 to FY2027.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.