ICD-10 Code F19.98 – Other psychoactive substance use, unspecified with other psychoactive substance-induced disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F19.98 – Other psychoactive substance use, unspecified with other psychoactive substance-induced disorders
What it is
This code identifies a mental or behavioral disorder caused by use of an unspecified psychoactive substance. Use it when the record links substance use to another substance-induced disorder, but the specific drug is not named.
Clinical signs
Clinical features vary; refer to documentation. Typical records may describe mood, anxiety, psychotic, or other behavioral changes temporally related to psychoactive substance use, with clinician attribution to the substance.
When to use this code
Use this code when the provider documents an unspecified psychoactive substance and a separate substance-induced disorder, but does not identify the exact substance. It is appropriate for discharge summaries, assessments, or problem lists that clearly connect the disorder to substance use. Check documentation if the induced condition is named elsewhere.
Do not use for
Do not use it when the substance is identified and a more specific F19 code applies. Do not assign it for uncomplicated substance use without a documented substance-induced disorder.
Coding tip
Look for both elements: unspecified psychoactive substance use and a documented induced disorder before assigning F19.98.