All ICD10 Codes

F16.9

Non-Billable
ChapterF01–F99
Ranksubcategory
Official Description

Hallucinogen use, unspecified

Use a more specific code (4 billable, 3 non-billable)
F16.90Hallucinogen use, unspecified, uncomplicatedF16.91Hallucinogen use, unspecified, in remissionF16.92Hallucinogen use, unspecified with intoxicationhas subcodesF16.94Hallucinogen use, unspecified with hallucinogen-induced mood disorderF16.95Hallucinogen use, unspecified with hallucinogen-induced psychotic disorderhas subcodesF16.98Hallucinogen use, unspecified with other specified hallucinogen-induced disorderhas subcodesF16.99Hallucinogen use, unspecified with unspecified hallucinogen-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.)
  • hallucinogen abuse (F16.1-)
  • hallucinogen dependence (F16.2-)
General instructions are available for the parent sections:
View CH5 NotesView F16 Notes

Clinical Hierarchy

BillableHas subcodes
CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F10-F19Mental and behavioral disorders due to psychoactive substance use (F10-F19)
F16Hallucinogen related disorders
F16.9Hallucinogen use, unspecifiedNot billable
F16.90Hallucinogen use, unspecified, uncomplicatedBillable
F16.91Hallucinogen use, unspecified, in remissionBillable
F16.92Hallucinogen use, unspecified with intoxicationSubcodes
F16.94Hallucinogen use, unspecified with hallucinogen-induced mood disorderBillable
F16.95Hallucinogen use, unspecified with hallucinogen-induced psychotic disorderSubcodes
F16.98Hallucinogen use, unspecified with other specified hallucinogen-induced disorderSubcodes
F16.99Hallucinogen use, unspecified with unspecified hallucinogen-induced disorderBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F16.9:

categoryF16
Hallucinogen 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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