F18.9

Non-billable

Inhalant use, unspecified

F18.9 is the ICD-10-CM code for Inhalant use, unspecified. It is a non-billable category code — use a more specific child code such as F18.90 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Parent
F18
Subcodes
8
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

Excludes1 — not coded here

  • inhalant abuse (F18.1-)
  • inhalant dependence (F18.2-)

Frequently asked questions

What is ICD-10 code F18.9?
F18.9 is the ICD-10-CM code for "Inhalant use, unspecified". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F18.9 a billable code?
No — F18.9 is a non-billable header code. Use a more specific child code (such as F18.90) for billing.
What are the subcodes of F18.9?
F18.9 has 8 more specific child codes, including F18.90, F18.91, F18.92.
What is excluded from F18.9?
Excludes1 (not coded here): inhalant abuse (F18.1-); inhalant dependence (F18.2-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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