B46.3 ICD-10-CA code: Cutaneous mucormycosis
B46.3 is the ICD-10-CA code for “Cutaneous mucormycosis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
B46.3Cutaneous mucormycosis
ICD-10-CA · Canada · Also written B463
Notes for B46.3
As CIHI prints them, with any note B46.3 takes from the headings above it.
Includes
- Subcutaneous mucormycosis
- 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.
- Hypersensitivity pneumonitis due to organic dust (J67.-)mycosis fungoides (C84.0)From B35-B49 Mycoses
- 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 B46.3 sits
- 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
- 2Block B35-B49Mycoses
- 3Category B46Zygomycosis
- 4Valid code B46.3Cutaneous mucormycosis
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 B46.3 mean?
B46.3 is the ICD-10-CA code for “Cutaneous mucormycosis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is B46.3 in ICD-10-CA?
B46.3 sits under B46 Zygomycosis, within B35-B49 Mycoses, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).
What coding notes apply to B46.3?
ICD-10-CA lists Includes, Excludes, Use additional code notes for B46.3, 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.