DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

F03.90 diagnosis code · Billable code · FY2027

F03.90 Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • Billable
  • Not CC/MCC
  • HCC 127
  • POA reported

F03.90 ICD-10 code: a billable diagnosis code in FY2027, one of 24 billable codes in category F03.

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F01-F09 Mental disorders due to known physiological conditions (F01-F09)
  3. F03 Unspecified dementia
  4. F03.9 Unspecified dementia, unspecified severity
  5. F03.90 Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
CC / MCC
Neither
MS-DRG
884, 974-976
HCC V28
127
POA
Reported
Code Editor
Adult
Index entries
1

Instructions

At F03.90

Inclusion terms

  • Dementia NOS

Notes that also apply

Inclusion terms from F03

  • Major neurocognitive disorder NOS
  • Presenile dementia NOS
  • Presenile psychosis NOS
  • Primary degenerative dementia NOS
  • Senile dementia NOS
  • Senile dementia depressed or paranoid type
  • Senile psychosis NOS

Excludes2 from F03

  • dementia with delirium or acute confusional state (F05) F05
  • mild memory disturbance due to known physiological condition (F06.8) F06.8

Block F01-F09 instructions (Notes 1): printed on the block page.

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

Index entries

  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) → F03.90

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

Medicare grouping and edits

CMS files for F03.90
CC / MCCNeither
Appendix BMDC 19 Mental Diseases and Disorders, MS-DRG 884 (Organic Disturbances and Intellectual Disability…); MDC 25 Human Immunodeficiency Virus Infections, MS-DRG 974-976 (HIV with Major Related Condition with MCC…)
Code EditorAge conflict: adult diagnosis (age 15–124)
POAReported
HCC V28HCC 127 Dementia, Mild or Unspecified

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

Hierarchy