Z11 Encounter for screening for infectious and parasitic diseases
The ICD-10-CM code for Encounter for screening for infectious and parasitic diseases is Z11 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Section
- Z00-Z13: Persons encountering health services for examinations (Z00-Z13)
- Category Z11
- 14 codes (12 billable)
- FY2026 Status
- Stable since FY2024
Inclusion Terms
- Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.
Official Coding Guidelines
Screening Z codes/categories listThe screening Z codes/categories: Z11 Encounter for screening for infectious and parasitic diseases Z12 Encounter for screening for malignant neoplasms Z13 Encounter for screening for other diseases and disorders Except: Z13.9, Encounter for screening, unspecified Z36 Encounter for antenatal screening for mother
Used with any code in range A00.0-T88.9, Z00-Z991) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026