ICD-10 Code F18.17 – Inhalant abuse with inhalant-induced dementia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F18.17 – Inhalant abuse with inhalant-induced dementia
What it is
Use this code for dementia caused by inhalant abuse, where cognitive decline is attributed to inhalant use. It reflects both the substance-related disorder and the resulting persistent impairment.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include memory loss, impaired judgment, and reduced ability to manage daily activities, with a history of inhalant misuse supporting the diagnosis.
When to use this code
Use F18.17 when the record clearly links inhalant abuse to dementia or an inhalant-induced neurocognitive disorder. You should code it when the clinician documents that the cognitive decline is due to inhalant exposure, not another cause. Check documentation if the cause is uncertain.
Do not use for
Do not use this code for inhalant abuse without dementia, or for dementia from another documented cause. If the chart only says intoxication, dependence, or unspecified substance use, choose the more accurate code set.
Coding tip
Confirm that the provider explicitly connects inhalant use to dementia before assigning F18.17.