ICD-10 Code F18.120 – Inhalant Abuse with Intoxication, Uncomplicated (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F18.120 – Inhalant abuse with intoxication, uncomplicated
What it is
Use this code for inhalant abuse causing intoxication without documented complications. It indicates acute substance effects from inhaled volatile substances, but the record does not show delirium, psychosis, or other specified complications.
Clinical signs
Clinical features vary; refer to documentation. Typical intoxication may include altered behavior, impaired coordination, slurred speech, or euphoria after inhalant use, but you should code only what is documented.
When to use this code
Assign F18.120 when the clinician documents inhalant abuse with intoxication and no complication is reported. Use it for encounters focused on the acute intoxicated state, such as emergency or urgent evaluations after recent inhalant use. If the note specifies another substance-related disorder, code that instead.
Do not use for
Do not use this code for inhalant dependence, withdrawal, or intoxication with complications such as delirium or psychotic disorder. Check documentation if the record is unclear about the type of inhalant-related disorder.
Coding tip
Verify both the substance category and the presence of intoxication before assigning F18.120.