F18.9
F18.9 — Inhalant use, unspecified
Non-billable headerICD-10-CM
F18.9 is a non-billable header ICD-10-CM code for inhalant use, unspecified. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with F18.9
These codes carry an Excludes1 note pointing at F18.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F18.9 alone.
Risk adjustment
F18.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead F18.9
8 child codes. Green means billable.
- F18.90Inhalant use, unspecified, uncomplicated
- F18.91Inhalant use, unspecified, in remission
- F18.92Inhalant use, unspecified with intoxication
- F18.94Inhalant use, unspecified with inhalant-induced mood disorder
- F18.95Inhalant use, unspecified with inhalant-induced psychotic disorder
- F18.97Inhalant use, unspecified with inhalant-induced persisting dementia
- F18.98Inhalant use, unspecified with other inhalant-induced disorders
- F18.99Inhalant use, unspecified with unspecified inhalant-induced disorder
Related codes at this level
Codes that share F18. If F18.9 is not quite right, the correct code is usually one of these.
Questions about F18.9
- Is F18.9 a billable ICD-10-CM code?
- No. F18.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does F18.9 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mental and behavioral disorders due to psychoactive substance use (F10-F19).
- What cannot be coded together with F18.9?
- F18.9 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.