Z22 — Carrier of infectious disease
Is Z22 billable?
No — Z22 is a non-billable header code. Z22 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 20 billable codes beneath Z22.
Billable codes under this header
- Z22.0Carrier of typhoid
- Z22.1Carrier of other intestinal infectious diseases
- Z22.2Carrier of diphtheria
- Z22.4Carrier of infections with a predominantly sexual mode of transmission
- Z22.6Carrier of human T-lymphotropic virus type-1 [HTLV-1] infection
- Z22.7Latent tuberculosis
- Z22.8Carrier of other infectious diseases
- Z22.9Carrier of infectious disease, unspecified
- Z22.31Carrier of bacterial disease due to meningococci
- Z22.39Carrier of other specified bacterial diseases
- Z22.321Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus
- Z22.322Carrier or suspected carrier of Methicillin resistant Staphylococcus aureus
- Z22.330Carrier of Group B streptococcus
- Z22.338Carrier of other streptococcus
- Z22.340Carrier of carbapenem-resistant Acinetobacter baumannii
- Z22.341Carrier of carbapenem-sensitive Acinetobacter baumannii
- Z22.349Carrier of Acinetobacter baumannii, unspecified
- Z22.350Carrier of carbapenem-resistant Enterobacterales
- Z22.358Carrier of other Enterobacterales
- Z22.359Carrier of Enterobacterales, unspecified
Z22 at a glance
| Code | Z22 |
|---|---|
| Description | Carrier of infectious disease |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of Z22, but a patient may have both at the same time. When documentation supports it, Z22 and the excluded code may both be reported.
- carrier of viral hepatitis (B18.-)
Includes
Conditions classified to Z22.
- colonization status
- suspected carrier
What codes fall under Z22? (9)
- Z22.0Carrier of typhoid
- Z22.1Carrier of other intestinal infectious diseases
- Z22.2Carrier of diphtheria
- Z22.3Carrier of other specified bacterial diseasesnot billable
- Z22.4Carrier of infections with a predominantly sexual mode of transmission
- Z22.6Carrier of human T-lymphotropic virus type-1 [HTLV-1] infection
- Z22.7Latent tuberculosis
- Z22.8Carrier of other infectious diseases
- Z22.9Carrier of infectious disease, unspecified
How long has Z22 existed?
Z22 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with Z22?
ICD-10-CM declares these codes mutually exclusive with Z22 — exactly one of each pair can be correct for a given encounter.
- vs R83.5Abnormal microbiological findings in cerebrospinal fluid
- vs R84.5Abnormal microbiological findings in specimens from respiratory organs and thorax
- vs R85.5Abnormal microbiological findings in specimens from digestive organs and abdominal cavity
- vs R86.5Abnormal microbiological findings in specimens from male genital organs
- vs R87.5Abnormal microbiological findings in specimens from female genital organs
- vs R89.5Abnormal microbiological findings in specimens from other organs, systems and tissues