Z22
Header — not billableCarrier of infectious disease
The ICD-10 code for carrier of infectious disease is Z22.
Z22 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- carrier of viral hepatitis (B18.-)
Includes
Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.
- colonization status
- suspected carrier
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under Z22
- Z22.0Carrier of typhoid
- Z22.1Carrier of other intestinal infectious diseases
- Z22.2Carrier of diphtheria
- Z22.3Carrier of other specified bacterial diseasesnon-billable header
- 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
Related codes in this category
- Z20Contact with and (suspected) exposure to communicable diseasesnon-billable header
- Z21Asymptomatic human immunodeficiency virus [HIV] infection status
- Z23Encounter for immunization
- Z28Immunization not carried out and underimmunization statusnon-billable header
- Z29Encounter for other prophylactic measuresnon-billable header
- Z22Carrier of infectious diseasenon-billable header