ICD-10 Code F18.1 – Inhalant Abuse (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F18.1 – Inhalant abuse
What it is
F18.1 identifies harmful use of inhalants, such as volatile solvents or aerosols, when the pattern is documented as abuse. Use this code when the record shows misuse rather than dependence or a one-time exposure.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include recurrent use, intoxication-related behavior, impaired judgment, or social and occupational problems linked to inhalant misuse.
When to use this code
Use F18.1 when the provider documents inhalant abuse, inhalant misuse, or a harmful pattern of use. Apply it for charted abuse of substances such as glue, paint thinner, gasoline, or similar inhaled agents. If the note instead describes dependence, intoxication, or poisoning, code the documented condition.
Do not use for
Do not use this code for accidental inhalation, toxic exposure, or routine use of inhaled medications. Check documentation if the record does not clearly distinguish abuse from dependence or acute poisoning.
Coding tip
Match the code to the provider’s exact wording; if “abuse” is not stated, check documentation before assigning F18.1.