F02.B18
✓ BillableDementia in other diseases classified elsewhere, moderate, with other behavioral disturbance
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Also Known As
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
- • vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)
📋 Code Instructions
direct- • code, if applicable, to identify wandering in dementia in conditions classified elsewhere (Z91.83)
📋 Code Instructions
inherited- • Code first: the underlying physiological condition, such as:
- • Code first: Alzheimer's (G30.-)
- • Code first: cerebral lipidosis (E75.4)
- • Code first: Creutzfeldt-Jakob disease (A81.0-)
- • Code first: epilepsy and recurrent seizures (G40.-)
- • Code first: frontotemporal dementia (G31.09)
- • Code first: hepatolenticular degeneration (E83.01)
- • Code first: human immunodeficiency virus [HIV] disease (B20)
- • Code first: Huntington's disease (G10)
- • Code first: hypercalcemia (E83.52)
- • Code first: hypothyroidism, acquired (E00-E03.-)
- • Code first: intoxications (T36-T65)
- • Code first: Jakob-Creutzfeldt disease (A81.0-)
- • Code first: multiple sclerosis (G35-)
- • Code first: neurocognitive disorder with Lewy bodies (G31.83)
- • Code first: neurosyphilis (A52.17)
- • Code first: niacin deficiency [pellagra] (E52)
- • Code first: other frontotemporal neurocognitive disorder (G31.90)
- • Code first: Parkinson's disease (G20.-)
- • Code first: Pick's disease (G31.01)
- • Code first: polyarteritis nodosa (M30.0)
- • Code first: prion disease (A81.9)
- • Code first: systemic lupus erythematosus (M32.-)
- • Code first: traumatic brain injury (S06.-)
- • Code first: trypanosomiasis (B56.-, B57.-)
- • Code first: vitamin B deficiency (E53.8)
Clinical Description
ICD-10-CM code F02.B18 represents dementia in other diseases classified elsewhere, moderate, with other behavioral disturbance. This code falls under the Mental, Behavioral and Neurodevelopmental disorders (F01-F99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 7-character code at the 6th level of specificity. This is the most specific code available in this subcategory. Coders should note that F02.B18 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code F02.B18?
ICD-10-CM code F02.B18 is "Dementia in other diseases classified elsewhere, moderate, with other behavioral disturbance". It belongs to the category: Mental, Behavioral and Neurodevelopmental disorders (F01-F99).
Is F02.B18 a billable ICD-10 code?
Yes, F02.B18 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with F02.B18?
F02.B18 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Can F02.B18 be coded with other codes?
F02.B18 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in F02.B1
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)