ICD-10 Code F06.70 – Mild neurocognitive disorder due to known physiological condition without behavioral disturbance (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F06.70 – Mild neurocognitive disorder due to known physiological condition without behavioral disturbance
What it is
This code identifies a mild decline in memory, attention, or other thinking skills caused by a known medical condition. The person remains largely independent and has no documented behavioral disturbance.
Clinical signs
Typical findings include modest cognitive impairment that is noticeable but not severe enough to meet dementia criteria. Clinical features vary; refer to documentation for the underlying physiological cause and the absence of behavioral symptoms.
When to use this code
Use F06.70 when the record clearly links mild cognitive decline to a known physiological condition, such as a neurologic or systemic disorder. Documented independence in daily function and no behavioral disturbance should be present. If the cause or severity is unclear, check documentation.
Do not use for
Do not use this code for dementia, delirium, or cognitive impairment without a specified physiological cause. Also avoid it when behavioral disturbance is documented or when the provider describes a different neurocognitive disorder.
Coding tip
Confirm both the underlying condition and the “without behavioral disturbance” wording before assigning F06.70.