2027 ICD-10-CM Diagnosis Code B76.0Ancylostomiasis

ICD-10-CM Codes›A00–B99›B65-B83›B76

ICD-10-CM B76.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B76.0 is a billable ICD-10-CM diagnosis code for ancylostomiasis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 371 through 373. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 4 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.

Code Identity

ICD-10-CM Code
B76.0
Billable Status
Yes — Valid for Submission
Code Describes
Ancylostomiasis
Short Description
Ancylostomiasis
Same as the full description in the CMS dataset.
Parent Code
Hookworm diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB65-B83Helminthiases
CategoryB76Hookworm diseases
This CodeB76.0Ancylostomiasis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Ancylostoma caninum eosinophilic enteritis of intestine
  • Ancylostoma caninum eosinophilic enteritis of small intestine
  • Ancylostomal cutaneous larva migrans
  • Ancylostomiasis
  • Ancylostomiasis caused by Ancylostoma braziliense
  • Ancylostomiasis caused by Ancylostoma ceylonicum
  • Ancylostomiasis caused by Ancylostoma duodenale
  • Cutaneous larva migrans
  • Cutaneous larva migrans by Ancylostoma braziliense
  • Cutaneous larva migrans by Ancylostoma caninum
  • Duodenitis caused by Ancylostoma
  • Eosinophilic enteritis of small intestine
  • Infection caused by Ancylostoma caninum
  • Parasitic infection causing inflammation of small intestine

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B76.0: its own notes plus those printed at B76 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From B76 Hookworm diseases applies to 4 codes
  • uncinariasis
From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Infection due to Ancylostoma species

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B76.0, its category, or a range that includes it.

Applicable To 1

These notes mention B76.0.

  • B81.4 Mixed intestinal helminthiases
    Infection due to intestinal helminths classified to more than one of the categories B65.0-B81.3 and B81.8 names B65.0-B81.3, which includes this code

Code First 2

These codes say to code first a condition named in the note, and B76.0 is one of the conditions named.

  • D63.8 Anemia in other chronic diseases classified elsewhere
    hookworm disease (B76.0-B76.9)
  • K67 Disorders of peritoneum in infectious diseases classified elsewhere
    helminthiasis (B65.0 -B83.9) names B65.0 -B83.9, which includes this code

Index to Diseases and InjuriesGuidance

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

  • Ancylostomiasis

    infection of humans or animals with hookworms of the genus ancylostoma. characteristics include anemia, dyspepsia, eosinophilia, and abdominal swelling.

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.

Convert B76.0 to ICD-9-CMHistory

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

ICD-9-CM
126.0 Ancylostoma duodenale
Approximate The match is approximate rather than exact.
ICD-9-CM
126.2 Ancylostoma braziliense
Approximate The match is approximate rather than exact.
ICD-9-CM
126.3 Ancylostoma ceylanicum
Approximate The match is approximate rather than exact.
ICD-9-CM
126.8 Ancylostoma NEC
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B76.0Overview

What is the ICD-10 code for ancylostomiasis?

The ICD-10-CM code for ancylostomiasis is B76.0 (sometimes written as B760). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B76.0 (Hookworm diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report ancylostomiasis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B76.0 group to?

When ancylostomiasis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 372, 371, 373, with relative weights from 0.6945 to 1.7087 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B76.0 a CC or MCC?

CMS lists B76.0 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 4 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B76.0?

Under the General Equivalence Mappings, ancylostomiasis converts to ICD-9-CM 126.0 (ancylostoma duodenale), 126.2 (ancylostoma braziliense), and 126.3 (ancylostoma ceylanicum). The mapping is approximate, so confirm the match fits the documentation.