2026 ICD-10-CM Diagnosis Code F13.231Sedative, hypnotic or anxiolytic dependence with withdrawal delirium

ICD-10-CM Codes›F01–F99›F10-F19›F13

ICD-10-CM F13.231
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F13.231 is a billable ICD-10-CM diagnosis code for sedative, hypnotic or anxiolytic dependence with withdrawal delirium. 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. Coders also document this condition as delirium due to benzodiazepine withdrawal. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sedative-related disorders.

Code Identity

ICD-10-CM Code
F13.231
Billable Status
Yes — Valid for Submission
Code Describes
Sedative, hypnotic or anxiolytic dependence with withdrawal delirium
Short Description
Sedatv/hyp/anxiolytc dependence w withdrawal delirium
Parent Code
F13.23
Sedative, hypnotic or anxiolytic dependence with withdrawal

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF10-F19Mental and behavioral disorders due to psychoactive substance use
CategoryF13Sedative, hypnotic, or anxiolytic related disorders
This CodeF13.231Sedative, hypnotic or anxiolytic dependence with withdrawal delirium

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Delirium due to benzodiazepine withdrawal
  • Delirium due to sedative withdrawal
  • Delirium due to substance withdrawal

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.

    • Abstinence symptoms, syndrome
      • sedative
        • with
          • dependence
            • with
              • delirium
    • Delirium, delirious(acute or subacute) (not alcohol- or drug-induced)
      • due to (secondary to)
        • anxiolytic
          • withdrawal
    • Delirium, delirious(acute or subacute) (not alcohol- or drug-induced)
      • due to (secondary to)
        • hypnotic
          • withdrawal
    • Delirium, delirious(acute or subacute) (not alcohol- or drug-induced)
      • due to (secondary to)
        • sedative
          • withdrawal
    • Delirium, delirious(acute or subacute) (not alcohol- or drug-induced)
      • tremens (alcohol-induced)
        • sedative-induced
    • Dependence(on) (syndrome)
      • drug NEC
        • sedative, hypnotic or anxiolytic
          • with
            • withdrawal
              • with
                • delirium

Clinical ClassificationClinical

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

CCSR MBD020
Sedative-related disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Delirium

Delirium is a mental state in which you are confused, disoriented, and not able to think or remember clearly. It usually starts suddenly. It is often temporary and treatable.

The full article covers:

  • What is delirium?
  • What causes delirium?
  • Who is more likely to get delirium?
  • What are the symptoms of delirium?
  • How is delirium diagnosed?
  • What are the treatments for delirium?
  • Can delirium be prevented?

Read the full article at MedlinePlus

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

Convert F13.231 to ICD-9-CMHistory

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

ICD-9-CM
292.0 Drug withdrawal
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
304.10 Sed,hyp,anxiolyt dep-NOS
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.

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 F13.231Overview

Is F13.231 (Sedative, hypnotic or anxiolytic dependence with withdrawal) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sedative, hypnotic or anxiolytic dependence with withdrawal delirium on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does F13.231 group to?

When sedative, hypnotic or anxiolytic dependence with withdrawal delirium 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 F13.231?

Under the General Equivalence Mappings, sedative, hypnotic or anxiolytic dependence with withdrawal delirium converts to ICD-9-CM 292.0 (drug withdrawal) and 304.10 (sed,hyp,anxiolyt dep-NOS). The mapping is approximate, so confirm the match fits the documentation.

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.