ICD-10 Code F03.90 – Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F03.90 – Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
What it is
This code identifies dementia when the type and severity are not specified and no behavioral, psychotic, mood, or anxiety disturbance is documented. Use it when the chart confirms dementia but does not provide a more specific subtype.
Clinical signs
Typical findings include memory loss, impaired reasoning, and reduced ability to perform everyday tasks. Clinical features vary; refer to documentation, and confirm that no associated behavioral or psychiatric disturbance is recorded.
When to use this code
Use F03.90 when the provider documents dementia without naming Alzheimer’s disease, vascular dementia, or another subtype. It also fits when severity is not stated and the record does not mention behavioral, psychotic, mood, or anxiety features. Check documentation if any of those disturbances are present.
Do not use for
Do not use this code if the dementia type is specified, or if behavioral, psychotic, mood, or anxiety disturbance is documented. If the record is unclear, check documentation before assigning a code.
Coding tip
Query the provider when the dementia subtype or associated disturbance is missing, because a more specific code may apply.