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Z22 ICD-10-CA category: Carrier of infectious disease

Z22 isn’t a code on its own. Choose one of the 16 codes beneath it, the one the documentation supports.

Official description

Z22

Carrier of infectious disease

ICD-10-CA · Canada

Codes in Z22

Z22 isn’t a code on its own. Open the group that matches what the note documents.

Z22.0Carrier of typhoidZ22.1Carrier of other intestinal infectious diseasesZ22.2Carrier of diphtheriaZ22.3Carrier of other specified bacterial diseases (8 codes)Z22.4Carrier of infections with a predominantly sexual mode of transmissionZ22.6Carrier of human T-lymphotropic virus type- 1 [HTLV-1] infectionZ22.7Latent tuberculosisZ22.8Carrier of other infectious diseasesZ22.9Carrier of infectious disease, unspecified

Notes for Z22

As CIHI prints them, with any note Z22 takes from the headings above it.

Includes

  • Suspected carrier

Note

  • This chapter should not be used for international comparison or for primary mortality coding.Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as "diagnoses" or "problems". This can arise in two main ways:(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination or to discuss a problem which is in itself not a disease or injury.(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury. Such factors may be elicited during population surveys, when the person may or may not be currently sick, or be recorded as an additional factor to be borne in mind when the person is receiving care for some illness or injury.From Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)

Where Z22 sits

  1. 1ChapterChapter 21: Factors influencing health status and contact with health services (Z00-Z99)
  2. 2Block Z20-Z29Persons with potential health hazards related to communicable diseases
  3. 3Category Z22Carrier of infectious disease

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 Z22 in the CIHI source

Frequently asked questions

Is Z22 a valid ICD-10-CA code?

No. Z22 (Carrier of infectious disease) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 16 codes; record the one the documentation supports.

Where is Z22 in ICD-10-CA?

Z22 sits under Z20-Z29 Persons with potential health hazards related to communicable diseases, within Chapter 21: Factors influencing health status and contact with health services (Z00-Z99).

What coding notes apply to Z22?

ICD-10-CA lists Includes, Note notes for Z22, 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 Z22

Z20Contact with and exposure to communicable diseasesZ21Asymptomatic human immunodeficiency virus [HIV] infection statusZ23Need for immunization against single bacterial diseasesZ24Need for immunization against certain single viral diseasesZ25Need for immunization against other single viral diseasesZ26Need for immunization against other single infectious diseasesZ27Need for immunization against combinations of infectious diseasesZ28Immunization not carried outZ29Need for other prophylactic measures