Z11
⚠ Non-billable (Header)Encounter for screening for infectious and parasitic diseases
Factors influencing health status and contact with health services (Z00-Z99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Also Known As
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.
❌ Excludes1
directCannot be coded with Z11
- • encounter for diagnostic examination-code to sign or symptom
Child Codes (10)
Z11.0Encounter for screening for intestinal infectious diseasesZ11.1Encounter for screening for respiratory tuberculosisZ11.2Encounter for screening for other bacterial diseasesZ11.3Encounter for screening for infections with a predominantly sexual mode of transmissionZ11.4Encounter for screening for human immunodeficiency virus [HIV]Z11.5Encounter for screening for other viral diseasesZ11.6Encounter for screening for other protozoal diseases and helminthiasesZ11.7Encounter for testing for latent tuberculosis infectionZ11.8Encounter for screening for other infectious and parasitic diseasesZ11.9Encounter for screening for infectious and parasitic diseases, unspecified
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CodeZ11
BillableNo — Header code
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes11 rule(s)
Excludes20 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)