ICD-10 Code F19.17 – Other psychoactive substance abuse with psychoactive substance-induced persisting dementia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F19.17 – Other psychoactive substance abuse with psychoactive substance-induced persisting dementia
What it is
This code identifies abuse of another psychoactive substance with a persisting dementia caused by that substance. Use it when documentation links ongoing cognitive decline to the substance use disorder.
Clinical signs
Typical findings include memory loss, impaired judgment, and reduced ability to perform daily activities. Clinical features vary; refer to documentation for the specific cognitive deficits and substance involved.
When to use this code
Use this code when the record states psychoactive substance abuse and a persisting dementia due to that substance. It may apply after the acute intoxication or withdrawal phase has passed, but the cognitive disorder remains documented. Check documentation for the substance category and causal link.
Do not use for
Do not use it for uncomplicated substance abuse without dementia, or for dementia from another cause. If the note does not clearly connect the dementia to the psychoactive substance, check documentation.
Coding tip
Confirm both elements are documented: substance abuse and persisting dementia caused by that substance.