Is ICD-10-CM code F03 billable?

No, F03 (Unspecified dementia) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code F03 belong to?

F03 belongs to Chapter 5 of the ICD-10-CM tabular list: F01–F99 (Mental, Behavioral and Neurodevelopmental Disorders).

F03Non-billable

Unspecified dementia

Mental, Behavioral and Neurodevelopmental Disorders·Mental disorders due to known physiological conditions (F01-F09)·category·FY 2026

Use a more specific code (0 billable, 4 non-billable)

F03.9Unspecified dementia, unspecified severityhas subcodes F03.AUnspecified dementia, mildhas subcodes F03.BUnspecified dementia, moderatehas subcodes F03.CUnspecified dementia, severehas subcodes

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

MS-DRG Classification

2026

No direct MS-DRG triggers identified.