ICD-10 Code F12.99 – Cannabis use, unspecified with unspecified cannabis-induced disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F12.99 – Cannabis use, unspecified with unspecified cannabis-induced disorder
What it is
F12.99 identifies cannabis use when the record also documents an unspecified cannabis-induced disorder, but the exact disorder type is not named. Use it when the chart confirms both cannabis use and a related disorder, yet details are limited.
Clinical signs
Clinical features vary; refer to documentation. You may see behavioral, mood, or cognitive changes linked to cannabis use, but the specific induced disorder is not specified in the record.
When to use this code
Use this code when the clinician documents cannabis use and an unspecified cannabis-induced disorder, such as when the presentation is clearly substance-related but not further classified. It is appropriate when the note lacks enough detail to assign a more specific cannabis-induced disorder code. Check documentation if the diagnosis is ambiguous.
Do not use for
Do not use F12.99 for cannabis use without any induced disorder, or when the chart identifies a specific cannabis-induced condition. If the record names another substance or a different primary diagnosis, code that condition instead.
Coding tip
Confirm both elements in the documentation: cannabis use and an unspecified cannabis-induced disorder.