Z11.9Billable
Encounter for screening for infectious and parasitic diseases, unspecified
Short description: Encounter for screening for infec/parastc diseases, unsp
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z11
- Effective date
- October 1, 2026
Related codes in category Z11
Z11Encounter for screening for infec/parastc diseasesZ11.0Encounter for screening for intestinal infectious diseasesYesZ11.1Encounter for screening for respiratory tuberculosisYesZ11.2Encounter for screening for other bacterial diseasesYesZ11.3Encntr screen for infections w sexl mode of transmissYesZ11.4Encounter for screening for human immunodeficiency virusYesZ11.5Encounter for screening for other viral diseasesZ11.51Encounter for screening for human papillomavirus (HPV)YesZ11.52Encounter for screening for COVID-19YesZ11.59Encounter for screening for other viral diseasesYesZ11.6Encntr screen for oth protozoal diseases and helminthiasesYesZ11.7Encounter for testing for latent tuberculosis infectionYes
Frequently asked questions
What is ICD-10 code Z11.9?
Z11.9 is an ICD-10-CM diagnosis code for Encounter for screening for infectious and parasitic diseases, unspecified.
Is Z11.9 a billable code?
Yes. Z11.9 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Z11.9 in?
Z11.9 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z11.9 become effective?
Z11.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z11.9?
Z11.9 belongs to category Z11, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.