DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

F29 diagnosis code · Billable category · FY2027

F29 Unspecified psychosis not due to a substance or known physiological condition

  • Billable
  • Not CC/MCC
  • HCC 152
  • POA reported

F29 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F20-F29 Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
  3. F29 Unspecified psychosis not due to a substance or known physiological condition
CC / MCC
Neither
MS-DRG
885, 974-976
HCC V28
152
POA
Reported
Code Editor
–
Index entries
5

Instructions

At F29

Inclusion terms

  • Psychosis NOS
  • Unspecified schizophrenia spectrum and other psychotic disorder

Excludes1

  • mental disorder NOS (F99) F99
  • unspecified mental disorder due to known physiological condition (F09) F09

Notes that also apply

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.

Index entries

  • Psychosis, psychotic → F29
  • Disorder (of)schizophrenia spectrum and other psychotic disorder → F29
  • Psychosis, psychoticconfusional → F29
  • Psychosis, psychoticnonorganic → F29
  • Schizophrenia, schizophrenicspectrum and other psychotic disorder → F29

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for F29
CC / MCCNeither
Appendix BMDC 19 Mental Diseases and Disorders, MS-DRG 885 (Psychoses…); MDC 25 Human Immunodeficiency Virus Infections, MS-DRG 974-976 (HIV with Major Related Condition with MCC…)
Code Editor–
POAReported
HCC V28HCC 152 Psychosis, Except Schizophrenia

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy