2026 ICD-10-CM Diagnosis Code F10.21Alcohol dependence, in remission

ICD-10-CM Codes›F01–F99›F10-F19›F10

ICD-10-CM F10.21
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F10.21 is a billable ICD-10-CM diagnosis code for alcohol dependence, in remission. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 894 through 897. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Mental and substance use disorders in remission.

Code Identity

ICD-10-CM Code
F10.21
Billable Status
Yes — Valid for Submission
Code Describes
Alcohol dependence, in remission
Short Description
Alcohol dependence, in remission
Same as the full description in the CMS dataset.
Parent Code
F10.2
Alcohol dependence

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF10-F19Mental and behavioral disorders due to psychoactive substance use
CategoryF10Alcohol related disorders
This CodeF10.21Alcohol dependence, in remission

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abstinent alcoholic
  • Alcohol dependence
  • Alcoholism
  • Chronic alcoholism in remission
  • Ex-drinker
  • Ex-heavy drinker -
  • Ex-light drinker -
  • Ex-moderate drinker -
  • Ex-problem drinker
  • Ex-trivial drinker - less than 1 unit/day
  • Ex-very heavy drinker - greater than 9 units/day
  • H/O: alcoholism
  • History of alcohol use disorder
  • History of substance dependency
  • Stopped drinking alcohol

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

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

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Addiction
      • alcohol, alcoholic (ethyl) (methyl) (wood) (without remission)
        • with remission
    • Addiction
      • ethyl alcohol (without remission)
        • with remission
    • Addiction
      • methyl alcohol (without remission)
        • with remission
    • Addiction
      • methylated spirit (without remission)
        • with remission
    • Alcohol, alcoholic, alcohol-induced
      • addiction (without remission)
        • with remission
    • Alcoholism(chronic) (without remission)
      • with
        • remission
    • Dependence(on) (syndrome)
      • alcohol (ethyl) (methyl) (without remission)
        • with
          • remission
    • Dependence(on) (syndrome)
      • alcohol (ethyl) (methyl) (without remission)
        • in remission
    • Dependence(on) (syndrome)
      • ethyl
        • alcohol (without remission)
          • with remission
    • Dependence(on) (syndrome)
      • methyl
        • alcohol (without remission)
          • with remission
    • Dipsomania
      • with
        • remission
    • Disorder(of)
      • alcohol use
        • moderate or severe
          • in remission (early) (sustained)
    • Drinking(alcohol)
      • excessive, to excess NEC (without dependence)
        • habitual (continual) (without remission)
          • with remission
    • Drunkenness(without dependence)
      • chronic (without remission)
        • with remission
    • History
      • personal (of)
        • alcohol dependence

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD026
Mental and substance use disorders in remission
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Alcoholism

    a primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. the disease is often progressive and fatal. it is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. each of these symptoms may be continuous or periodic. (morse & flavin for the joint commission of the national council on alcoholism and drug dependence and the american society of addiction medicine to study the definition and criteria for the diagnosis of alcoholism: in jama 1992;268:1012-4)

Patient EducationClinical

Alcohol Use Disorder (AUD)

For most adults, moderate alcohol use is probably not harmful. Your risk of developing an alcohol use disorder (AUD) depends on how much, how often, and how quickly you drink alcohol. Alcohol misuse means that drinking causes distress and harm. Over time alcohol misuse can increase your risk of AUD.

The full article covers:

  • What is alcohol use disorder (AUD)?
  • What is binge drinking?
  • What are the dangers of too much alcohol?
  • How do I know if I have an alcohol use disorder (AUD)?
  • What should I do if I think that I might have an alcohol use disorder (AUD)?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F10.21 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
303.93 Alcoh dep NEC/NOS-remiss
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F10.21Overview

Is F10.21 (Alcohol dependence) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report alcohol dependence, in remission on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does F10.21 group to?

When alcohol dependence, in remission is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 895, 896, 897, with relative weights from 0.6169 to 1.7451 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F10.21?

Under the General Equivalence Mappings, alcohol dependence, in remission converts to ICD-9-CM 303.93 (alcoh dep NEC/NOS-remiss). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.