Alphabetic Index FY2027

Z22

Carrier of infectious disease

FY2027Chapter 21: Factors influencing health status and contact with health services/Z20–Z29 Persons with potential health hazards related to communicable diseases

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

Z22 is a non-billable ICD-10-CM code category for carrier of infectious disease. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Z22.0 Carrier of typhoid, Z22.1 Carrier of other intestinal infectious diseases, Z22.2 Carrier of diphtheria, Z22.3 Carrier of other specified bacterial diseases and 5 more. Its coding notes include 1 Excludes2 entry.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

This code
  • carrier of viral hepatitis (B18.-)

Includes

Further defines or gives examples of the content of the category.

This code
  • colonization status
  • suspected carrier

Notes

Also from chapter/block level (3 notes)
Inherited from Chapter 21 Factors influencing health status and contact with health services
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. 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 (immunization), 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.

More specific codes under Z22 9