All ICD10 Codes

F18.9

Non-Billable
ChapterF01–F99
Ranksubcategory
Official Description

Inhalant use, unspecified

Use a more specific code (5 billable, 3 non-billable)
F18.90Inhalant use, unspecified, uncomplicatedF18.91Inhalant use, unspecified, in remissionF18.92Inhalant use, unspecified with intoxicationhas subcodesF18.94Inhalant use, unspecified with inhalant-induced mood disorderF18.95Inhalant use, unspecified with inhalant-induced psychotic disorderhas subcodesF18.97Inhalant use, unspecified with inhalant-induced persisting dementiaF18.98Inhalant use, unspecified with other inhalant-induced disordershas subcodesF18.99Inhalant use, unspecified with unspecified inhalant-induced disorder
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • inhalant abuse (F18.1-)
  • inhalant dependence (F18.2-)
General instructions are available for the parent sections:
View CH5 NotesView F18 Notes

Clinical Hierarchy

BillableHas subcodes
CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F10-F19Mental and behavioral disorders due to psychoactive substance use (F10-F19)
F18Inhalant related disorders
F18.9Inhalant use, unspecifiedNot billable
F18.90Inhalant use, unspecified, uncomplicatedBillable
F18.91Inhalant use, unspecified, in remissionBillable
F18.92Inhalant use, unspecified with intoxicationSubcodes
F18.94Inhalant use, unspecified with inhalant-induced mood disorderBillable
F18.95Inhalant use, unspecified with inhalant-induced psychotic disorderSubcodes
F18.97Inhalant use, unspecified with inhalant-induced persisting dementiaBillable
F18.98Inhalant use, unspecified with other inhalant-induced disordersSubcodes
F18.99Inhalant use, unspecified with unspecified inhalant-induced disorderBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F18.9:

categoryF18
Inhalant related disorders
View context instructions
chapterCH5
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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