Carrier of infectious disease (Z22) ICD-10-CM
The Z22 code range covers carrier of infectious disease with 26 ICD-10-CM diagnosis codes. 20 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- colonization status
- suspected carrier
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- carrier of viral hepatitis B18
Codes in the Z22 Range 26 codes · 20 billable
- Z22 Carrier of infectious diseaseNon-billable
- 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 diseasesNon-billable
- Z22.31 Carrier of bacterial disease due to meningococci
- Z22.32 Carrier of bacterial disease due to staphylococciNon-billable
- Z22.321 Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus
- Z22.322 Carrier or suspected carrier of Methicillin resistant Staphylococcus aureus
- Z22.33 Carrier of bacterial disease due to streptococciNon-billable
- Z22.330 Carrier of Group B streptococcus
- Z22.338 Carrier of other streptococcus
- Z22.34 Carrier of Acinetobacter baumanniiNon-billable
- Z22.340 Carrier of carbapenem-resistant Acinetobacter baumannii
- Z22.341 Carrier of carbapenem-sensitive Acinetobacter baumannii
- Z22.349 Carrier of Acinetobacter baumannii, unspecified
- Z22.35 Carrier of EnterobacteralesNon-billable
- Z22.350 Carrier of carbapenem-resistant Enterobacterales
- Z22.358 Carrier of other Enterobacterales
- Z22.359 Carrier of Enterobacterales, unspecified
- Z22.39 Carrier of other specified bacterial diseases
- Z22.4 Carrier of infections with a predominantly sexual mode of transmission
- Z22.6 Carrier of human T-lymphotropic virus type-1 [HTLV-1] infection
- Z22.7 Latent tuberculosis
- Z22.8 Carrier of other infectious diseases
- Z22.9 Carrier of infectious disease, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Z22 range.
Latent Tuberculosis
The dormant form of TUBERCULOSIS where the person shows no obvious symptoms and no sign of the causative agent (Mycobacterium tuberculosis) in the SPUTUM despite being positive for tuberculosis infection skin test.
About the Z22 Code Range
Carrier status for infectious diseases and latent tuberculosis fall under Z22. The category sits among potential health hazards related to communicable diseases.
The subdivisions separate typhoid, other intestinal infections, diphtheria, specified bacterial diseases, infections transmitted predominantly through sexual contact, and HTLV-1 infection. They also distinguish latent tuberculosis, other infectious diseases, and an unspecified infectious disease.
The bacterial branches identify the organism. Staphylococcus aureus codes distinguish methicillin-susceptible from methicillin-resistant carrier or suspected carrier status. Acinetobacter baumannii and Enterobacterales branches distinguish carbapenem resistance or sensitivity where specified.
Questions About This Page
How many billable codes are in the Z22 range?
Of the 26 codes in this range, 20 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Z22 range classify?
The range classifies carrier of infectious disease. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
