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Z22.7 ICD-10-CA code: Latent tuberculosis

Z22.7 is the ICD-10-CA code for “Latent tuberculosis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

Z22.7

Latent tuberculosis

ICD-10-CA · Canada · Also written Z227

Index terms

Entries in CIHI’s alphabetical index that lead to Z22.7. Searching the index by the condition the note names is how coders reach this code.

  • Carrier (suspected) of, tuberculosis
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), latent

Notes for Z22.7

As CIHI prints them, with any note Z22.7 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • Abnormal result of Mantoux test (R76.1)

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 Z22.7 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
  4. 4Valid code Z22.7Latent tuberculosis

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 Z22.7 in the CIHI source

Frequently asked questions

What does ICD-10-CA code Z22.7 mean?

Z22.7 is the ICD-10-CA code for “Latent tuberculosis” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is Z22.7 in ICD-10-CA?

Z22.7 sits under Z22 Carrier of infectious disease, within 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 Z22.7?

ICD-10-CA lists Excludes, Includes, Note notes for Z22.7, 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 Z22.7

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