Z22 – Carrier of infectious disease
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to communicable diseases
ICD-10-CM code
Z22
- Code
Z22(claims format:Z22)- Description
- Carrier of infectious disease
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z20-Z29 Persons with potential health hazards related to communicable diseases
Billable codes under Z22
Z22 is a header code and cannot be used on claims. Choose the most specific code:
- Z22.0 – Carrier of typhoidBillable
- Z22.1 – Carrier of other intestinal infectious diseasesBillable
- Z22.2 – Carrier of diphtheriaBillable
- Z22.3 – Carrier of other specified bacterial diseasesHeader (more codes below)
- Z22.4 – Carrier of infections with a predominantly sexual mode of transmissionBillable
- Z22.6 – Carrier of human T-lymphotropic virus type-1 [HTLV-1] infectionBillable
- Z22.7 – Latent tuberculosisBillable
- Z22.8 – Carrier of other infectious diseasesBillable
- Z22.9 – Carrier of infectious disease, unspecifiedBillable
Notes for Z22
Includes:
- colonization status
- suspected carrier
Excludes2 (not included here):
- carrier of viral hepatitis (B18.-)
Frequently asked questions
What is ICD-10 code Z22?
Z22 is the ICD-10-CM code for carrier of infectious disease, in the block Z20-Z29 (Persons with potential health hazards related to communicable diseases).
Is Z22 a billable code?
No. Z22 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.