B74.3 ICD-10-CA code: Loiasis
B74.3 is the ICD-10-CA code for “Loiasis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
B74.3Loiasis
ICD-10-CA · Canada · Also written B743
Index terms
Entries in CIHI’s alphabetical index that lead to B74.3. Searching the index by the condition the note names is how coders reach this code.
- Calabar swelling
- Infestation, Loa loa
- Swelling (of), Calabar
- Eyeworm disease of Africa
- Disease, diseased, eyeworm of Africa
- Infection, infected (opportunistic), Loa loa
Notes for B74.3
As CIHI prints them, with any note B74.3 takes from the headings above it.
Includes
- Calabar swellingEyeworm disease of AfricaLoa loa infection
- Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Excludes
Conditions classified elsewhere.
- Onchocerciasis (B73)tropical (pulmonary) eosinophilia NOS (J82)From B74 Filariasis
- Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Where B74.3 sits
- 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
- 2Block B65-B83Helminthiases
- 3Category B74Filariasis
- 4Valid code B74.3Loiasis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code B74.3 mean?
B74.3 is the ICD-10-CA code for “Loiasis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is B74.3 in ICD-10-CA?
B74.3 sits under B74 Filariasis, within B65-B83 Helminthiases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).
What coding notes apply to B74.3?
ICD-10-CA lists Includes, Excludes, Use additional code notes for B74.3, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.