U.S. ICD-10-CM · FY 2027

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

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Z11

Encounter for screening for infectious and parasitic diseases

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Z11 sits

  1. 1

    Chapter 21

    Factors influencing health status and contact with health services (Z00-Z99)

  2. 2

    Section

    Persons encountering health services for examinations (Z00-Z13)

  3. 3

    Category Z11

    Encounter for screening for infectious and parasitic diseases

  4. 4

    Code Z11

    Encounter for screening for infectious and parasitic diseases

More specific choices

Codes under Z11

Z11 is a non-billable category. Choose the child code that best matches the documented diagnosis.

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

Z11.6

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

Documentation details

Notes for this code

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.

Code first

No “code first” instruction is listed for Z11.

Use additional code

No “use additional code” instruction is listed for Z11.

Excludes1

Conditions that should not be reported together with this code.

  • encounter for diagnostic examination-code to sign or symptom

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Z11.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Z11 mean?

Z11 is the FY 2027 U.S. ICD-10-CM code for “Encounter for screening for infectious and parasitic diseases.”

Is Z11 a billable or specific ICD-10-CM code?

No. Z11 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Z11 located in ICD-10-CM?

Z11 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Persons encountering health services for examinations (Z00-Z13) (Z00–Z13), under category Z11, Encounter for screening for infectious and parasitic diseases.

What coding notes are listed for Z11?

Its listed inclusion terms are 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.. No code-first instruction is listed. Excludes1 notes: encounter for diagnostic examination-code to sign or symptom. No Excludes2 note is listed.

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