MCMedicalCodingSoftware
F18.259

F18.259: Inhalant dependence with inhalant-induced psychotic disorder, unspecified

Billable / specific codeICD-10-CM

F18.259 is a billable, specific ICD-10-CM code for inhalant dependence with inhalant-induced psychotic disorder, unspecified. It is valid for submission on a claim.

Check F18.259 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above F18.259

A category’s note binds every code beneath it.

Written on F18.2: Inhalant dependence

  • inhalant abuse (F18.1-)
  • inhalant use, unspecified (F18.9-)

Risk adjustment

F18.259 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 135 Drug Use with Psychotic Complications0.424 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

F18.259 is named in 15 Medicare coverage policies: 13 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56562Billing and Coding: Health and Behavior Assessment/Interventionnot covered
  • A56614Billing and Coding: Psychiatric Inpatient Hospitalization
  • A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing

Alphabetic index entries that lead here

  • Dependence›drug NEC›inhalant›with›psychosis
  • Disorder›inhalant use›moderate or severe›with›inhalant-induced›psychotic disorder

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F18.25

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.