ICD-10-CM 2027
ICD-10 code for Inhalants use
From the official ICD-10-CM alphabetic index entry “Use (of) › inhalants”. Page updated September 29, 2026.
About coding Inhalants use
The ICD-10-CM code for Inhalants use is F18.90 (Inhalant use, unspecified, uncomplicated). The official index lists 12 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F18.90.
Within F18.9 (Inhalant use, unspecified), F18.90 is specifically for Inhalant use, unspecified, uncomplicated. Related codes cover in remission (F18.91), with intoxication (F18.92), with inhalant-induced mood disorder (F18.94), with inhalant-induced psychotic disorder (F18.95), with inhalant-induced persisting dementia (F18.97), with other inhalant-induced disorders (F18.98) and with unspecified inhalant-induced disorder (F18.99).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 894 (Alcohol, Drug Abuse or Dependence, Left AMA, relative weight 0.6275), DRG 895 (Alcohol, Drug Abuse or Dependence with Rehabilitation Therapy, relative weight 1.4266), DRG 896 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy with MCC, relative weight 1.6617) and DRG 897 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCC, relative weight 0.8584), in MDC 20 (Alcohol/Drug Use and Alcohol/Drug Induced Organic Mental Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Inhalants use codes (official index)
- with
- anxiety disorder F18.980 — Inhalant use, unspecified with inhalant-induced anxiety disorder
- intoxication F18.929 — Inhalant use, unspecified with intoxication, unspecified
- with delirium F18.921 — Inhalant use, unspecified with intoxication with delirium
- uncomplicated F18.920 — Inhalant use, unspecified with intoxication, uncomplicated
- mood disorder F18.94 — Inhalant use, unspecified with inhalant-induced mood disorder
- other specified disorder F18.988 — Inhalant use, unspecified with other inhalant-induced disorder
- persisting dementia F18.97 — Inhalant use, unspecified with inhalant-induced persisting dementia
- psychosis F18.959 — Inhalant use, unspecified with inhalant-induced psychotic disorder, unspecified
- delusions F18.950 — Inhalant use, unspecified with inhalant-induced psychotic disorder with delusions
- hallucinations F18.951 — Inhalant use, unspecified with inhalant-induced psychotic disorder with hallucinations
- unspecified disorder F18.99 — Inhalant use, unspecified with unspecified inhalant-induced disorder
- harmful
- in remission F18.91 — Inhalant use, unspecified, in remission
Common questions about Inhalants use ICD-10 codes
What is the ICD-10 code for Inhalants use?
- F18.90 — Inhalant use, unspecified, uncomplicated. More specific codes apply when the documentation supports them: F18.980, F18.929, F18.921, F18.920 and others below.
Is F18.90 billable?
- Yes. F18.90 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F18.90 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F18.90 as a principal diagnosis.
Is F18.90 a CC or MCC?
- No. F18.90 is neither a CC nor an MCC under MS-DRG v44.0.