ICD-10-CM Z11: Encounter for screening for infectious and parasitic diseases

ICD-10-CM Diagnosis Code (2025)

Official Description for Z11

Encounter for screening for infectious and parasitic diseases

Coding Notes & Guidelines for Z11

Excludes1: Not Coded Here

encounter for diagnostic examination-code to sign or symptom

Excludes2: Not Included Here
  • encounter for screening for human immunodeficiency virus [HIV] (Z11.4)
  • encounter for screening for human papillomavirus (Z11.51)
Excludes2: Not Included Here

encounter for screening for viral intestinal disease (Z11.0)

Excludes2: Not Included Here

encounter for screening for protozoal intestinal disease (Z11.0)

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.

Inclusion Terms

Encounter for screening for active tuberculosis disease

Inclusion Terms
  • Encounter for screening for chlamydia
  • Encounter for screening for rickettsial
  • Encounter for screening for spirochetal
  • Encounter for screening for mycoses

Child Codes (More Specific Codes for Z11):

Z11.0 - Encounter for screening for intestinal infectious diseases Z11.1 - Encounter for screening for respiratory tuberculosis Z11.2 - Encounter for screening for other bacterial diseases Z11.3 - Encounter for screening for infections with a predominantly sexual mode of transmission Z11.4 - Encounter for screening for human immunodeficiency virus [HIV] Z11.5 - Encounter for screening for other viral diseases Z11.51 - Encounter for screening for human papillomavirus (HPV) Z11.52 - Encounter for screening for COVID-19 Z11.59 - Encounter for screening for other viral diseases Z11.6 - Encounter for screening for other protozoal diseases and helminthiases Z11.7 - Encounter for testing for latent tuberculosis infection Z11.8 - Encounter for screening for other infectious and parasitic diseases Z11.9 - Encounter for screening for infectious and parasitic diseases, unspecified

About ICD-10-CM Code Z11 (Encounter for screening for infectious and parasitic diseases)

ICD-10-CM code Z11 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z11 became effective on October 1, 2024.

This page provides detailed information about Z11 - Encounter for screening for infectious and parasitic diseases. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Encounter for screening for infectious and parasitic diseases.