2027 ICD-10-CM Diagnosis Code B76.9Hookworm disease, unspecified
ICD-10-CM Codes›A00–B99›B65-B83›B76
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
B76.9 is a billable ICD-10-CM diagnosis code for hookworm disease, unspecified. 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. Coders also document this condition as cutaneous larva migrans. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cutaneous larva migrans
- Disease caused by Ancylostomatoidea
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to B76.9: 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.
- uncinariasis
- 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.
- Cutaneous larva migrans NOS
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.
- 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.
- 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 B76.9, its category, or a range that includes it.
Code First 2
These codes say to code first a condition named in the note, and B76.9 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Brickmakers' anemia B76.9
Chorioretinitis See Also: Inflammation, chorioretinal;
Coolie itch B76.9
Cutaneous See Also: condition;
larva migrans B76.9
Disease, diseased See Also: Syndrome;
creeping B76.9
Ground itch B76.9
hookworm B76.9
Itch, itching See Also: Pruritus;
cutaneous B76.9
Uncinariasis B76.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Larva Migrans
infections caused by nematode larvae which never develop into the adult stage and migrate through various body tissues. they commonly infect the skin, eyes, and viscera in man. ancylostoma brasiliensis causes cutaneous larva migrans. toxocara causes visceral larva migrans.
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 B76.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B76.9Overview
What is the ICD-10 code for hookworm disease, unspecified?
The ICD-10-CM code for hookworm disease, unspecified is B76.9 (sometimes written as B769). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is B76.9 (Hookworm diseases) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report hookworm disease, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does B76.9 group to?
When hookworm disease, unspecified 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 B76.9 a CC or MCC?
CMS lists B76.9 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 B76.9?
Under the General Equivalence Mappings, hookworm disease, unspecified converts to ICD-9-CM 126.9 (ancylostomiasis NOS). The mapping is approximate, so confirm the match fits the documentation.
