Version 2024

2024 ICD-10-CM Diagnosis Code Z11

Encounter for screening for infectious and parasitic diseases

ICD-10-CM Code:
Z11
ICD-10 Code for:
Encounter for screening for infec/parastc diseases
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Factors influencing health status and contact with health services
    (Z00–Z99)
    • Persons encountering health services for examinations
      (Z00-Z13)
      • Encounter for screening for infectious and parasitic diseases
        (Z11)

Z11 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of encounter for screening for infectious and parasitic diseases. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Encounter for screening for infec/parastc diseases

Non-specific codes like Z11 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for encounter for screening for infec/parastc diseases:

  • Use Z11.0 for Encounter for screening for intestinal infectious diseases - BILLABLE CODE

  • Use Z11.1 for Encounter for screening for respiratory tuberculosis - BILLABLE CODE

  • Use Z11.2 for Encounter for screening for other bacterial diseases - BILLABLE CODE

  • Use Z11.3 for Encounter for screening for infections with a predominantly sexual mode of transmission - BILLABLE CODE

  • Use Z11.4 for Encounter for screening for human immunodeficiency virus [HIV] - BILLABLE CODE

  • Z11.5 for Encounter for screening for other viral diseases - NON-BILLABLE CODE

  • Use Z11.51 for Encounter for screening for human papillomavirus (HPV) - BILLABLE CODE

  • Use Z11.52 for Encounter for screening for COVID-19 - BILLABLE CODE

  • Use Z11.59 for Encounter for screening for other viral diseases - BILLABLE CODE

  • Use Z11.6 for Encounter for screening for other protozoal diseases and helminthiases - BILLABLE CODE

  • Use Z11.7 for Encounter for testing for latent tuberculosis infection - BILLABLE CODE

  • Use Z11.8 for Encounter for screening for other infectious and parasitic diseases - BILLABLE CODE

  • Use Z11.9 for Encounter for screening for infectious and parasitic diseases, unspecified - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a 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.

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • encounter for diagnostic examination-code to sign or symptom

Patient Education


Health Screening

Screenings are tests that look for diseases before you have symptoms. Screening tests can find diseases early, when they're easier to treat. You can get some screenings in your doctor's office. Others need special equipment, so you may need to go to a different office or clinic.

Some conditions that doctors commonly screen for include:

  • Breast cancer and cervical cancer in women
  • Colorectal cancer
  • Diabetes
  • High blood pressure
  • High cholesterol
  • Osteoporosis
  • Overweight and obesity
  • Prostate cancer in men

Which tests you need depends on your age, your sex, your family history, and whether you have risk factors for certain diseases. After a screening test, ask when you will get the results and whom to talk to about them.

Agency for Healthcare Research and Quality


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.