ICDcodes.org
FY2027

F18.21 — Inhalant dependence, in remission

Billable

Is F18.21 billable?

Yes — F18.21 is billable for FY2027. F18.21 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. F18.21 may be submitted for encounters from October 1, 2026 through September 30, 2027.

F18.21 at a glance

CodeF18.21
DescriptionInhalant dependence, in remission
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does F18.21 group to?

F18.21 sits in MDC 20 and helps define the logic of 4 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 894Alcohol, Drug Abuse or Dependence, Left AMAmedical
  • 895Alcohol, Drug Abuse or Dependence with Rehabilitation Therapymedical
  • 896Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy with MCCmedical
  • 897Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCCmedical

How is F18.21 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to F18.21. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Dependence › drug NEC › inhalant › in remission (on) (syndrome)
  • Disorder › inhalant use › moderate or severe › in remission (of)

Inclusion terms

Alternative wording in documentation that is classified to F18.21.

  • Inhalant use disorder, moderate, in early remission
  • Inhalant use disorder, moderate, in sustained remission
  • Inhalant use disorder, severe, in early remission
  • Inhalant use disorder, severe, in sustained remission

Excludes1 — never code together — inherited from F18.2

The conditions below can never be reported together with F18.21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Excludes2 — not included here — inherited from Chapter 5

The conditions below are not part of F18.21, but a patient may have both at the same time. When documentation supports it, F18.21 and the excluded code may both be reported.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

How long has F18.21 existed?

F18.21 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to F18.21?

What other codes are in the F18.2 family? (7)