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B73 ICD-10-CA code: Onchocerciasis

B73 is the ICD-10-CA code for “Onchocerciasis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

B73

Onchocerciasis

ICD-10-CA · Canada

Index terms

Entries in CIHI’s alphabetical index that lead to B73. Searching the index by the condition the note names is how coders reach this code.

  • Craw craw
  • Robles' disease
  • Onchocerciasis, onchocercosis
  • Infestation, Onchocerca (volvulus)
  • Infection, infected (opportunistic), Onchocerca (volvulus)

Notes for B73

As CIHI prints them, with any note B73 takes from the headings above it.

Includes

  • Onchocerca volvulus infectionOnchocercosisRiver blindness
  • 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.

  • 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 B73 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block B65-B83Helminthiases
  3. 3Valid code B73Onchocerciasis

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.

See B73 in the CIHI source

Frequently asked questions

What does ICD-10-CA code B73 mean?

B73 is the ICD-10-CA code for “Onchocerciasis” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is B73 in ICD-10-CA?

B73 sits under B65-B83 Helminthiases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to B73?

ICD-10-CA lists Includes, Use additional code, Excludes notes for B73, 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.

Codes beside B73

B65Schistosomiasis [bilharziasis]B66Other fluke infectionsB67EchinococcosisB68TaeniasisB69CysticercosisB70Diphyllobothriasis and sparganosisB71Other cestode infectionsB72DracunculiasisB74FilariasisB75TrichinellosisB76Hookworm diseasesB77AscariasisB78StrongyloidiasisB79TrichuriasisB80EnterobiasisB81Other intestinal helminthiases, not elsewhere classifiedB82Unspecified intestinal parasitismB83Other helminthiases