ICD-10 Code F18.2 – Inhalant dependence (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F18.2 – Inhalant dependence
What it is
F18.2 identifies dependence on inhalants, meaning a persistent pattern of use with difficulty stopping despite harm. It refers to substances inhaled for psychoactive effects, not prescribed respiratory medications.
Clinical signs
Clinical features vary; refer to documentation. Common signs include compulsive inhalant use, tolerance, withdrawal, and continued use despite social, occupational, or health problems.
When to use this code
Use F18.2 when the record clearly documents inhalant dependence or dependence syndrome related to inhaled substances. Code it when the clinician describes ongoing use with loss of control, craving, or withdrawal. If the note only says inhalant use or abuse, check documentation before assigning dependence.
Do not use for
Do not use this code for acute intoxication, simple use, or abuse without dependence. Do not apply it to therapeutic inhaled medications or to substance use that is not specifically documented as inhalant dependence.
Coding tip
Confirm the substance and the dependency wording in the note before coding F18.2.