Is Z11 a billable code?
No. Z11 is a header code that groups 12 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z11: Encounter for screening for infectious and parasitic diseases
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z11 groups related diagnoses under encounter for screening for infectious and parasitic diseases. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z11
- 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]
- Z11.51Encounter for screening for human papillomavirus (HPV)
- Z11.52Encounter for screening for COVID-19
- Z11.59Encounter 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
Z11 questions
What does Z11 mean?
Z11 is the ICD-10-CM code for Encounter for screening for infectious and parasitic diseases. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.