Z22CurrentCategory · further specificity required

Carrier of infectious disease

Excludes 2 · 1

Z22

Excludes 2

carrier of viral hepatitis (B18.-)

More specific codes

Z22.0Carrier of typhoid Z22.1Carrier of other intestinal infectious diseases Z22.2Carrier of diphtheria Z22.3Carrier of other specified bacterial diseases 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

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

First observed · 2015-10-01

Code history

Latest recorded change · FY2017

ChangedUnchanged

FY2017

Effective from 2016-10-01

Code-level rules changed

Carrier of infectious disease

Category — select a more specific code

CDC/NCHS · FY2017

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	Code-level rules changed
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	No tabular change
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

Includes

colonization status
suspected carrier

Excludes 2

carrier of viral hepatitis (B18.-)

Inherited instructions

Chapters 21 · Factors influencing health status and contact with health services (Z00-Z99)

Note

Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

More specific codes

Z22.0Carrier of typhoidBillable / specific Z22.1Carrier of other intestinal infectious diseasesBillable / specific Z22.2Carrier of diphtheriaBillable / specific Z22.3Carrier of other specified bacterial diseasesCategory · further specificity required Z22.4Carrier of infections with a predominantly sexual mode of transmissionBillable / specific Z22.6Carrier of human T-lymphotropic virus type-1 [HTLV-1] infectionBillable / specific Z22.7Latent tuberculosisBillable / specific Z22.8Carrier of other infectious diseasesBillable / specific Z22.9Carrier of infectious disease, unspecifiedBillable / specific

Related codes

Official titles and instructions are preserved in their source language. Official sources ↗