2027 ICD-10-CM Diagnosis Code B75Trichinellosis
ICD-10-CM Codes›A00–B99›B65-B83›B75
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
B75 is a billable ICD-10-CM diagnosis code for trichinellosis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 867 through 869. 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 156 closely related codes. 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.
- Diaphragmatic trichiniasis
- Diaphragmitis
- Disease caused by Trichinelloidea
- Infection by larvae of Trichinella
- Infection by larvae of Trichinella spiralis
- Infection caused by larvae of Trichinella britovi
- Infection caused by larvae of Trichinella nativa
- Infection caused by larvae of Trichinella nelsoni
- Infection caused by larvae of Trichinella papuae
- Infection caused by larvae of Trichinella pseudospiralis
- Infection caused by Trichinella
- Invasive trichinosis
- Migratory trichinosis
- Nematode myositis
- Parasitic myositis
- Trichinella murelli infection
- Trichinosis myositis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to B75: its own notes plus those printed at 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.
- infection due to Trichinella species
- trichiniasis
- diseases generally recognized as communicable or transmissible
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 B75, its category, or a range that includes it.
Code First 3
These codes say to code first a condition named in the note, and B75 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
trichinosis B75
Trichinellosis, trichiniasis, trichinelliasis, trichinosis B75
ankle B75
foot B75
forearm B75
hand B75
lower leg B75
multiple sites B75
pelvic region B75
shoulder region B75
thigh B75
upper arm B75
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Trichinellosis
an infection with trichinella. it is caused by eating raw or undercooked meat that is infected with larvae of nematode worms trichinella genus. all members of the trichinella genus can infect human in addition to trichinella spiralis, the traditional etiological agent. it is distributed throughout much of the world and is re-emerging in some parts as a public health hazard and a food safety problem.
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 B75 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B75Overview
What is the ICD-10 code for trichinellosis?
The ICD-10-CM code for trichinellosis is B75. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is B75 (Trichinellosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report trichinellosis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does B75 group to?
When trichinellosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 869, 868, with relative weights from 0.6784 to 2.1855 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B75 a CC or MCC?
CMS lists B75 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 156 closely related codes in its exclusion list.
What is the ICD-9 equivalent of B75?
Under the General Equivalence Mappings, trichinellosis converts to ICD-9-CM 124 (trichinosis). The mapping is a direct match.
