All ICD10 Codes

F03

Non-Billable
ChapterF01–F99
Rankcategory
Official Description

Unspecified dementia

Use a more specific code (0 billable, 4 non-billable)
F03.9Unspecified dementia, unspecified severityhas subcodesF03.AUnspecified dementia, mildhas subcodesF03.BUnspecified dementia, moderatehas subcodesF03.CUnspecified dementia, severehas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99).

CH5 Parent Instructions

Includes
  • disorders of psychological development
Excludes2(Not included here. Code separately if applicable.)
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Instructional Notes

Includes
  • 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(Not included here. Code separately if applicable.)
  • dementia with delirium or acute confusional state (F05)
  • mild memory disturbance due to known physiological condition (F06.8)

Clinical Hierarchy

BillableHas subcodes
CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F01-F09Mental disorders due to known physiological conditions (F01-F09)
F03Unspecified dementiaNot billable
F03.9Unspecified dementia, unspecified severitySubcodes
F03.AUnspecified dementia, mildSubcodes
F03.BUnspecified dementia, moderateSubcodes
F03.CUnspecified dementia, severeSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F03:

chapterCH5
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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