ICD-10 Code F19.18 – Other psychoactive substance abuse with other psychoactive substance-induced disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F19.18 – Other psychoactive substance abuse with other psychoactive substance-induced disorders
What it is
This code identifies abuse of a psychoactive substance, along with a documented disorder caused by that substance. Use it when the record links the substance use to another psychoactive substance-induced condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the chart shows harmful use or abuse plus a substance-induced mental or behavioral disorder attributable to the same psychoactive substance.
When to use this code
Use F19.18 when the provider documents abuse of an unspecified or other psychoactive substance and also identifies a related substance-induced disorder. This may apply when the exact substance is not named or does not fit another specific code. Confirm the causal relationship is stated or clearly supported in the note.
Do not use for
Do not use this code for dependence, uncomplicated use, or intoxication without a documented induced disorder. If the substance or the induced condition is specified elsewhere, check documentation for a more accurate code.
Coding tip
Code both the abuse and the induced disorder only when the provider clearly documents that the disorder is substance-induced.