Z22
ICD-10Non-billable categoryCarrier of infectious disease
Official ICD-10-CM descriptor (FY2026)
Carrier of infectious disease
Z22 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- colonization status
- suspected carrier
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- carrier of viral hepatitis (B18.-)
More specific codes under Z22
- Z22.0Carrier of typhoid
- Z22.1Carrier of other intestinal infectious diseases
- Z22.2Carrier of diphtheria
- Z22.3Carrier of other specified bacterial diseasescategory
- Z22.4Carrier of infections w sexl mode of transmiss
- Z22.6Carrier of human T-lymphotropic virus type-1 infection
- Z22.7Latent tuberculosis
- Z22.8Carrier of other infectious diseases
- Z22.9Carrier of infectious disease, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.