2026 ICD-10-CM Diagnosis Code F11.93Opioid use, unspecified with withdrawal
ICD-10-CM Codes›F01–F99›F10-F19›F11
- Billable — Valid for Submission
- Not Chronic
F11.93 is a billable ICD-10-CM diagnosis code for opioid use, unspecified with withdrawal. 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 narcotic withdrawal epilepsy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Opioid-related disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Narcotic withdrawal epilepsy
- Seizure co-occurrent and due to substance withdrawal
- Signs of drug withdrawal
- Signs of opioid withdrawal on naloxone challenge test
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- opioid use, unspecified with intoxication F11.92
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Abstinence symptoms, syndrome
- opioid - F11.93
- Use (of)
- with
- withdrawal - F11.93
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Abstinence symptoms, syndrome
- opioid
- Use(of)
- opioid
- with
- withdrawal
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Opioids and Opioid Use Disorder (OUD)
Opioids, sometimes called narcotics, are a type of drug. They include strong prescription pain relievers such as oxycodone, hydrocodone, fentanyl, and tramadol. The illegal drug heroin is also an opioid. Some opioids are made from the opium plant, and others are synthetic (man-made).
The full article covers:
- What are opioids?
- What are the side effects and risks of opioids?
- What is opioid use disorder (OUD)?
- How are opioid use disorder (OUD) and opioid overdose treated?
- How can I prevent problems when taking prescription opioids?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F11.93 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F11.93Overview
Is F11.93 (Opioid use, unspecified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report opioid use, unspecified with withdrawal on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does F11.93 group to?
When opioid use, unspecified with withdrawal 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 F11.93?
Under the General Equivalence Mappings, opioid use, unspecified with withdrawal converts to ICD-9-CM 292.0 (drug withdrawal). 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.
