2026 ICD-10-CM Diagnosis Code F11.90Opioid use, unspecified, uncomplicated

ICD-10-CM Codes›F01–F99›F10-F19›F11

ICD-10-CM F11.90
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F11.90 is a billable ICD-10-CM diagnosis code for opioid use, unspecified, uncomplicated. 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 opioid use disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Opioid-related disorders.

Code Identity

ICD-10-CM Code
F11.90
Billable Status
Yes — Valid for Submission
Code Describes
Opioid use, unspecified, uncomplicated
Short Description
Opioid use, unspecified, uncomplicated
Same as the full description in the CMS dataset.
Parent Code
F11.9
Opioid use, unspecified

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF10-F19Mental and behavioral disorders due to psychoactive substance use
CategoryF11Opioid related disorders
This CodeF11.90Opioid use, unspecified, uncomplicated

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Opioid use disorder

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.

    • Use(of)
      • opioid

Clinical ClassificationClinical

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

CCSR MBD018
Opioid-related disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Opioid Use Disorder

    the use of opioids that results in the development of a dependency that adversely affects an individual's life.

Patient EducationClinical

Pain Relievers

Pain relievers are medicines that reduce or relieve headaches, sore muscles, arthritis, or other aches and pains. There are many different pain medicines, and each with advantages and risks. Some types of pain respond better to certain medicines than others. Each person may also have a slightly different response to a pain reliever.

The full article covers:

  • What are pain relievers?
  • What are the types of over-the-counter pain relievers?
  • What are prescription pain relievers?
  • What are some non-drug treatments for pain?

Read the full article at MedlinePlus

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

Convert F11.90 to ICD-9-CMHistory

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

ICD-9-CM
305.50 Opioid abuse-unspec
Approximate The match is approximate rather than exact.

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 F11.90Overview

Is F11.90 (Opioid use, unspecified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report opioid use, unspecified, uncomplicated on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does F11.90 group to?

When opioid use, unspecified, uncomplicated 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 F11.90?

Under the General Equivalence Mappings, opioid use, unspecified, uncomplicated converts to ICD-9-CM 305.50 (opioid abuse-unspec). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.