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B58 ICD-10-CA category: Toxoplasmosis

B58 isn’t a code on its own. Choose one of the 6 codes beneath it, the one the documentation supports.

Official description

B58

Toxoplasmosis

ICD-10-CA · Canada

Codes in B58

B58 isn’t a code on its own. Open the code that matches what the note documents.

B58.0Toxoplasma oculopathyB58.1Toxoplasma hepatitisB58.2Toxoplasma meningoencephalitisB58.3Pulmonary toxoplasmosisB58.8Toxoplasmosis with other organ involvementB58.9Toxoplasmosis, unspecified

Notes for B58

As CIHI prints them, with any note B58 takes from the headings above it.

Includes

  • Infection due to Toxoplasma gondii
  • 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.

  • Congenital toxoplasmosis (P37.1)
  • Amoebiasis (A06.-)other protozoal intestinal diseases (A07.-)From B50-B64 Protozoal diseases
  • 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 B58 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block B50-B64Protozoal diseases
  3. 3Category B58Toxoplasmosis

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 B58 in the CIHI source

Frequently asked questions

Is B58 a valid ICD-10-CA code?

No. B58 (Toxoplasmosis) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 6 codes; record the one the documentation supports.

Where is B58 in ICD-10-CA?

B58 sits under B50-B64 Protozoal diseases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to B58?

ICD-10-CA lists Includes, Excludes, Use additional code notes for B58, 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 B58

B50Plasmodium falciparum malariaB51Plasmodium vivax malariaB52Plasmodium malariae malariaB53Other parasitologically confirmed malariaB54Unspecified malariaB55LeishmaniasisB56African trypanosomiasisB57Chagas' diseaseB60Other protozoal diseases, not elsewhere classifiedB64Unspecified protozoal disease