2026 ICD-10-CM Diagnosis Code F18Inhalant related disorders

ICD-10-CM Codes›F01–F99›F10-F19›F18

ICD-10-CM F18
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F18 is a non-billable ICD-10-CM category code for inhalant related disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as F18.10, F18.11, F18.120, and F18.121.

Code Identity

ICD-10-CM Code
F18
Billable Status
No — Non-Billable Category
Code Describes
Inhalant related disorders
Chapter
F10-F19
Mental and behavioral disorders due to psychoactive substance use

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF10-F19Mental and behavioral disorders due to psychoactive substance use
CategoryF18Inhalant related disorders
This CodeF18Inhalant related disorders

Specific Coding for Inhalant related disordersOverview

Non-specific codes like F18 require more characters. Use one of these billable codes instead:

  • F18.1 for Inhalant abuse

  • Use F18.10 for Inhalant abuse, uncomplicated

  • Use F18.11 for Inhalant abuse, in remission

  • F18.12 for Inhalant abuse with intoxication

  • Use F18.14 for Inhalant abuse with inhalant-induced mood disorder

  • F18.15 for Inhalant abuse with inhalant-induced psychotic disorder

  • Use F18.17 for Inhalant abuse with inhalant-induced dementia

  • F18.18 for Inhalant abuse with other inhalant-induced disorders

  • Use F18.19 for Inhalant abuse with unspecified inhalant-induced disorder

  • F18.2 for Inhalant dependence

  • Use F18.20 for Inhalant dependence, uncomplicated

  • Use F18.21 for Inhalant dependence, in remission

  • F18.22 for Inhalant dependence with intoxication

  • Use F18.24 for Inhalant dependence with inhalant-induced mood disorder

  • F18.25 for Inhalant dependence with inhalant-induced psychotic disorder

  • Use F18.27 for Inhalant dependence with inhalant-induced dementia

  • F18.28 for Inhalant dependence with other inhalant-induced disorders

  • Use F18.29 for Inhalant dependence with unspecified inhalant-induced disorder

  • F18.9 for Inhalant use, unspecified

  • Use F18.90 for Inhalant use, unspecified, uncomplicated

  • Use F18.91 for Inhalant use, unspecified, in remission

  • F18.92 for Inhalant use, unspecified with intoxication

  • Use F18.94 for Inhalant use, unspecified with inhalant-induced mood disorder

  • F18.95 for Inhalant use, unspecified with inhalant-induced psychotic disorder

  • Use F18.97 for Inhalant use, unspecified with inhalant-induced persisting dementia

  • F18.98 for Inhalant use, unspecified with other inhalant-induced disorders

  • Use F18.99 for Inhalant use, unspecified with unspecified inhalant-induced disorder

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • volatile solvents

Patient EducationClinical

Inhalants

Inhalants are substances that people inhale (breathe in) to get high. There are other substances that people might inhale, such as alcohol. But those are not called inhalants, because they can also be used another way. Inhalants are the substances that you can misuse only by inhaling them.

The full article covers:

  • What are inhalants?
  • What are the types of inhalants?
  • How do people use inhalants?
  • Who uses inhalants?
  • What are the signs that someone is using inhalants?
  • What are the health effects of using inhalants?
  • Are inhalants addictive?
  • Can inhalant misuse be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F18Overview

Is F18 (Inhalant related disorders) a billable code?

No. This is a category header that groups the codes for inhalant related disorders, and headers cannot be submitted on claims. Claims for inhalant related disorders need a more specific code from this category, such as F18.10, F18.11, and F18.120.