2027 ICD-10-CM Diagnosis Code F18.90Inhalant use, unspecified, uncomplicated
ICD-10-CM Codes›F01–F99›F10-F19›F18
- Billable — Valid for Submission
- Not Chronic
F18.90 is a billable ICD-10-CM diagnosis code for inhalant use, unspecified, uncomplicated. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 894 through 897. Coders also document this condition as volatile inhalant use disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Inhalant-related disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Volatile inhalant use disorder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F18.90: its own notes plus those printed at F18.9, F18, and Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- volatile solvents
- disorders of psychological development
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F18.90, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming F18.90: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
inhalants F18.90
volatile solvents See Also: Use, inhalant; F18.90
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Convert F18.90 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F18.90Overview
What is the ICD-10 code for inhalant use, unspecified, uncomplicated?
The ICD-10-CM code for inhalant use, unspecified, uncomplicated is F18.90 (sometimes written as F1890). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is F18.90 (Inhalant use, unspecified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report inhalant use, unspecified, uncomplicated on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F18.90 group to?
When inhalant use, unspecified, uncomplicated is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 897, 895, 896, with relative weights from 0.6272 to 1.6610 depending on complications. Higher weights mean higher Medicare reimbursement.
Can F18.90 be reported with a code from F18.1?
Not as a rule. The Excludes1 note at F18.9, which applies to F18.90, lists "inhalant abuse (F18.1-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of F18.90?
Under the General Equivalence Mappings, inhalant use, unspecified, uncomplicated converts to ICD-9-CM 305.90 (drug abuse NEC-unspec). The mapping is approximate, so confirm the match fits the documentation.
