ICD-10 Code F18.12 – Inhalant Abuse with Intoxication (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F18.12 – Inhalant abuse with intoxication
What it is
F18.12 identifies inhalant abuse accompanied by intoxication. Use it when the record shows harmful inhalant use and current intoxication from that use.
Clinical signs
Clinical features vary; refer to documentation. Typical intoxication may include euphoria, disinhibition, impaired judgment, slurred speech, unsteady gait, or altered mental status after inhalant use.
When to use this code
Use this code when the clinician documents inhalant abuse and states the patient is intoxicated. It fits encounters for acute effects from abused inhalants, not merely past use.
If the note does not clearly identify abuse with intoxication, check documentation. Code from the documented substance use diagnosis and any associated mental or behavioral findings.
Do not use for
Do not use it for inhalant dependence, uncomplicated use, or poisoning from accidental exposure. If the chart only says “inhalant use” without abuse or intoxication, check documentation.
Coding tip
Confirm both elements—abuse and intoxication—are documented before assigning F18.12.