F29
ICD-10BillableUnsp psychosis not due to a substance or known physiol cond
Official ICD-10-CM descriptor (FY2026)
Unspecified psychosis not due to a substance or known physiological condition
F29 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Psychosis NOS
- Unspecified schizophrenia spectrum and other psychotic disorder
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- mental disorder NOS (F99)
- unspecified mental disorder due to known physiological condition (F09)
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.