2026 ICD-10-CM Diagnosis Code B86Scabies

ICD-10-CM Codes›A00–B99›B85-B89›B86

ICD-10-CM B86
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B86 is a billable ICD-10-CM diagnosis code for scabies. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. Coders also document this condition as crusted scabies. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.

Code Identity

ICD-10-CM Code
B86
Billable Status
Yes — Valid for Submission
Code Describes
Scabies
Chapter
B85-B89
Pediculosis, acariasis and other infestations

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB85-B89Pediculosis, acariasis and other infestations
CategoryB86Scabies
This CodeB86Scabies

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Crusted scabies
  • Infestation by Sarcoptes
  • Infestation by Sarcoptes scabiei var bovis
  • Infestation by Sarcoptes scabiei var canis
  • Infestation by Sarcoptes scabiei var equi
  • Infestation by Sarcoptes scabiei var hominis
  • Infestation by Sarcoptes scabiei var ovis
  • Infestation by Sarcoptes scabiei var suis
  • Scabetic nodule

Tabular List NotesGuidance

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

Inclusion Terms

  • Sarcoptic itch

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.

    • Acariasis
      • scabies
    • Infection, infected, infective(opportunistic)
      • scabies
    • Infestation
      • Acariasis
        • sarcoptes scabiei
    • Infestation
      • mites
        • scabic
    • Infestation
      • Sarcoptes scabiei
    • Infestation
      • scabies
    • Itch, itching
      • meaning scabies
    • Itch, itching
      • Norwegian
    • Itch, itching
      • sarcoptic
    • Itch, itching
      • scabies
    • Norwegian itch
    • Scabies(any site)

Clinical ClassificationClinical

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

CCSR INF009
Parasitic, other specified and unspecified infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Scabies

    a contagious cutaneous inflammation caused by the bite of the mite sarcoptes scabiei. it is characterized by pruritic papular eruptions and burrows and affects primarily the axillae, elbows, wrists, and genitalia, although it can spread to cover the entire body.

  • Sarcoptes scabiei

    a species of mite that causes scabies in humans and sarcoptic mange in other animals. specific variants of s. scabiei exist for humans and animals, but many have the ability to cross species and cause disease.

  • Norwegian Scabies

    a rare, severe form of scabies that is associated with immunosuppression. it is characterized by an immense number of mites and hyperkeratotic crusted lesions, and is usually accompanied by lymphadenopathy and eosinophilia.

  • Scabies

    a contagious skin infection that is caused by the burrowing parasitic mite, sarcoptes scabiei, and is characterized by intense itching and small, raised red spots in the area of the mite burrows.

Patient EducationClinical

Scabies

Scabies is an itchy skin condition caused by the microscopic mite Sarcoptes scabei. It is common all over the world, and can affect anyone. Scabies spreads quickly in crowded conditions where there is frequent skin-to-skin contact between people. Hospitals, child-care centers, and nursing homes are examples.

Read the full article at MedlinePlus

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

Convert B86 to ICD-9-CMHistory

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

ICD-9-CM
133.0 Scabies
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 B86Overview

Is B86 (Scabies) a billable code?

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

What MS-DRG does B86 group to?

When scabies is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of B86?

Under the General Equivalence Mappings, scabies converts to ICD-9-CM 133.0 (scabies). The mapping is a direct match.

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.