2026 ICD-10-CM Diagnosis Code B78Strongyloidiasis

ICD-10-CM Codes›A00–B99›B65-B83›B78

ICD-10-CM B78
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B78 is a non-billable ICD-10-CM category code for strongyloidiasis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as B78.0, B78.1, B78.7, and B78.9.

Code Identity

ICD-10-CM Code
B78
Billable Status
No — Non-Billable Category
Code Describes
Strongyloidiasis
Chapter
B65-B83
Helminthiases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB65-B83Helminthiases
CategoryB78Strongyloidiasis
This CodeB78Strongyloidiasis

Specific Coding for StrongyloidiasisOverview

Non-specific codes like B78 require more characters. Use one of these billable codes instead:

  • Use B78.0 for Intestinal strongyloidiasis

  • Use B78.1 for Cutaneous strongyloidiasis

  • Use B78.7 for Disseminated strongyloidiasis

  • Use B78.9 for Strongyloidiasis, unspecified

Tabular List NotesGuidance

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

Type 1 Excludes

  • trichostrongyliasis B81.2

Clinical InformationClinical

  • Strongyloidiasis

    infection with nematodes of the genus strongyloides. the presence of larvae may produce pneumonitis and the presence of adult worms in the intestine could lead to moderate to severe diarrhea.

  • Strongyloides

    a genus of parasitic nematodes widely distributed as intestinal parasites of mammals.

  • Strongyloidiasis

    an infection that is caused by nematodes of the genus strongyloides, most commonly strongyloides stercoralis, which is a soil-transmitted helminth, and which is characterized by a variety of gastrointestinal, dermatologic, and, occasionally, pulmonary manifestations. the worm's autoinfective life cycle can lead to hyper-infection and life-threatening dissemination in immunocompromised hosts decades after initial infection.

Patient EducationClinical

Parasitic Diseases

Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.

Read the full article at MedlinePlus

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

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 B78Overview

Is B78 (Strongyloidiasis) a billable code?

No. This is a category header that groups the codes for strongyloidiasis, and headers cannot be submitted on claims. Claims for strongyloidiasis need a more specific code from this category, such as B78.0, B78.1, and B78.7.