Z22: Carrier of infectious disease
Codes under Z22 (Carrier of infectious disease). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Z22.0 | Carrier of typhoid | ✓ |
| Z22.0 | Carrier of typhoid | ✓ |
| Z22.1 | Carrier of other intestinal infectious diseases | ✓ |
| Z22.1 | Carrier of other intestinal infectious diseases | ✓ |
| Z22.2 | Carrier of diphtheria | ✓ |
| Z22.2 | Carrier of diphtheria | ✓ |
| Z22.3 | Carrier of other specified bacterial diseases | — |
| Z22.3 | Carrier of other specified bacterial diseases | — |
| Z22.4 | Carrier of infections with a predominantly sexual mode of transmission | ✓ |
| 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 | ✓ |
| Z22.6 | Carrier of human T-lymphotropic virus type-1 [HTLV-1] infection | ✓ |
| Z22.7 | Latent tuberculosis | ✓ |
| Z22.7 | Latent tuberculosis | ✓ |
| Z22.8 | Carrier of other infectious diseases | ✓ |
| Z22.8 | Carrier of other infectious diseases | ✓ |
| Z22.9 | Carrier of infectious disease, unspecified | ✓ |
| Z22.9 | Carrier of infectious disease, unspecified | ✓ |
| Z22.31 | Carrier of bacterial disease due to meningococci | ✓ |
| Z22.31 | Carrier of bacterial disease due to meningococci | ✓ |
| Z22.32 | Carrier of bacterial disease due to staphylococci | — |
| Z22.32 | Carrier of bacterial disease due to staphylococci | — |
| Z22.33 | Carrier of bacterial disease due to streptococci | — |
| Z22.33 | Carrier of bacterial disease due to streptococci | — |
| Z22.34 | Carrier of Acinetobacter baumannii | — |
| Z22.34 | Carrier of Acinetobacter baumannii | — |
| Z22.35 | Carrier of Enterobacterales | — |
| Z22.35 | Carrier of Enterobacterales | — |
| Z22.39 | Carrier of other specified bacterial diseases | ✓ |
| Z22.39 | Carrier of other specified bacterial diseases | ✓ |
| Z22.321 | Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus | ✓ |
| Z22.321 | Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus | ✓ |
| Z22.322 | Carrier or suspected carrier of Methicillin resistant Staphylococcus aureus | ✓ |
| Z22.322 | Carrier or suspected carrier of Methicillin resistant Staphylococcus aureus | ✓ |
| Z22.330 | Carrier of Group B streptococcus | ✓ |
| Z22.330 | Carrier of Group B streptococcus | ✓ |
| Z22.338 | Carrier of other streptococcus | ✓ |
| Z22.338 | Carrier of other streptococcus | ✓ |
| Z22.340 | Carrier of carbapenem-resistant Acinetobacter baumannii | ✓ |
| Z22.340 | Carrier of carbapenem-resistant Acinetobacter baumannii | ✓ |
| Z22.341 | Carrier of carbapenem-sensitive Acinetobacter baumannii | ✓ |
| Z22.341 | Carrier of carbapenem-sensitive Acinetobacter baumannii | ✓ |
| Z22.349 | Carrier of Acinetobacter baumannii, unspecified | ✓ |
| Z22.349 | Carrier of Acinetobacter baumannii, unspecified | ✓ |
| Z22.350 | Carrier of carbapenem-resistant Enterobacterales | ✓ |
| Z22.350 | Carrier of carbapenem-resistant Enterobacterales | ✓ |
| Z22.358 | Carrier of other Enterobacterales | ✓ |
| Z22.358 | Carrier of other Enterobacterales | ✓ |
| Z22.359 | Carrier of Enterobacterales, unspecified | ✓ |
| Z22.359 | Carrier of Enterobacterales, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code Z22?
Z22 is an ICD-10-CM category covering Carrier of infectious disease. It contains 50 more specific diagnosis codes, 40 of which are billable.
Is Z22 a billable code?
No — Z22 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Z22.0 — Carrier of typhoid). 40 of the 50 codes under Z22 are billable.
What codes fall under Z22?
Z22 includes Z22.0, Z22.0, Z22.1, Z22.1, Z22.2, plus 45 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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