Z11
Z11: Encounter for screening for infectious and parasitic diseases
Non-billable headerICD-10-CM
Z11 is a non-billable header ICD-10-CM code for encounter for screening for infectious and parasitic diseases. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- encounter for diagnostic examination-code to sign or symptom
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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.
Other codes that can never be billed with Z11
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Z11
10 child codes. Green means billable.
- Z11.0Encounter for screening for intestinal infectious diseases
- Z11.1Encounter for screening for respiratory tuberculosis
- Z11.2Encounter for screening for other bacterial diseases
- Z11.3Encounter for screening for infections with a predominantly sexual mode of transmission
- Z11.4Encounter for screening for human immunodeficiency virus [HIV]
- Z11.5Encounter for screening for other viral diseases
- Z11.6Encounter for screening for other protozoal diseases and helminthiases
- Z11.7Encounter for testing for latent tuberculosis infection
- Z11.8Encounter for screening for other infectious and parasitic diseases
- Z11.9Encounter for screening for infectious and parasitic diseases, unspecified