ICD-10-CM 2027 diagnosis code
F18.97Inhalant use, unspecified with inhalant-induced persisting dementia
F18.97 is a valid, billable ICD-10-CM code for inhalant use, unspecified with inhalant-induced persisting dementia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Inhalant use, unsp with inhalant-induced persisting dementia
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About F18.97
F18.97 is the ICD-10-CM diagnosis code for Inhalant use, unspecified with inhalant-induced persisting dementia. It belongs to category F18 (Inhalant related disorders), block F10-F19 (mental and behavioral disorders due to psychoactive substance use) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within F18.9 (Inhalant use, unspecified), F18.97 is specifically for Inhalant use, unspecified with inhalant-induced persisting dementia. Related codes cover uncomplicated (F18.90), in remission (F18.91), with intoxication (F18.92), with inhalant-induced mood disorder (F18.94), with inhalant-induced psychotic disorder (F18.95), with other inhalant-induced disorders (F18.98) and with unspecified inhalant-induced disorder (F18.99).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
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.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 292.82 (drug-induced persisting dementia).
Coding notes
- Inhalant-induced major neurocognitive disorder
Notes that apply from higher levels
Instructions written at a parent level also apply to F18.97.
› From F18 Inhalant related disorders
- volatile solvents
Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Alphabetic index entries
5 entriesTerms in the official ICD-10-CM index that lead to F18.97.
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › inhalants
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › psychoactive drug › inhalants
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › volatile solvents
- Inhalant-induced › major neurocognitive disorder
- Use (of) › inhalants › with › persisting dementia
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 20 · Alcohol/Drug Use and Alcohol/Drug Induced Organic Mental Disorders
- 894Alcohol, Drug Abuse or Dependence, Left AMARW 0.6275
- 895Alcohol, Drug Abuse or Dependence with Rehabilitation TherapyRW 1.4266
- 896Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy with MCCRW 1.6617
- 897Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCCRW 0.8584
ICD-9-CM equivalent
Converter →- 292.82Drug-induced persisting dementiaapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about F18.97
Is F18.97 billable?
- Yes. F18.97 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F18.97 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F18.97 as a principal diagnosis.
Is F18.97 a CC or MCC?
- F18.97 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does F18.97 group to?
- F18.97 is used in the MS-DRG v44.0 logic for MS-DRG 894 (Alcohol, Drug Abuse or Dependence, Left AMA), MS-DRG 895 (Alcohol, Drug Abuse or Dependence with Rehabilitation Therapy), MS-DRG 896 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy with MCC) and MS-DRG 897 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for F18.97?
- The CMS General Equivalence Mappings map F18.97 to ICD-9-CM 292.82.