DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Z11 Encounter for screening for infectious and parasitic diseases

  • Header · not billable

Z11 is not billable. The category heads 12 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • COVID-19screening → Z11.52
  • Screening (for)yaws → Z11.8
  • Screening (for)plague → Z11.2

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z00-Z13 Persons encountering health services for examinations (Z00-Z13)
  3. Z11 Encounter for screening for infectious and parasitic diseases
Billable codes
12
Subdivisions
10
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
87

Codes in Z11

  1. Z11.0
    Encounter for screening for intestinal infectious diseases
    BillableExempt
  2. Z11.1
    Encounter for screening for respiratory tuberculosis
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Encounter for screening for active tuberculosis disease
  3. Z11.2
    Encounter for screening for other bacterial diseases
    BillableExempt
  4. Z11.3
    Encounter for screening for infections with a predominantly sexual mode of transmission
    BillableExempt
    Excludes2 2

    Excludes2

    • encounter for screening for human immunodeficiency virus [HIV] (Z11.4) Z11.4
    • encounter for screening for human papillomavirus (Z11.51) Z11.51
  5. Z11.4
    Encounter for screening for human immunodeficiency virus [HIV]
    BillableExempt
  6. Z11.5
    Encounter for screening for other viral diseases
    Header
    Excludes2 1

    Excludes2

    • encounter for screening for viral intestinal disease (Z11.0) Z11.0
  7. Z11.51
    Encounter for screening for human papillomavirus (HPV)
    BillableExempt
  8. Z11.52
    Encounter for screening for COVID-19
    BillableExempt
  9. Z11.59
    Encounter for screening for other viral diseases
    BillableExempt
  10. Z11.6
    Encounter for screening for other protozoal diseases and helminthiases
    BillableExempt
    Excludes2 1

    Excludes2

    • encounter for screening for protozoal intestinal disease (Z11.0) Z11.0
  11. Z11.7
    Encounter for testing for latent tuberculosis infection
    BillableExempt
  12. Z11.8
    Encounter for screening for other infectious and parasitic diseases
    BillableExempt
    Inclusion terms 4

    Inclusion terms

    • Encounter for screening for chlamydia
    • Encounter for screening for rickettsial
    • Encounter for screening for spirochetal
    • Encounter for screening for mycoses
  13. Z11.9
    Encounter for screening for infectious and parasitic diseases, unspecified
    BillableExempt

Sources of each column.

Instructions

At Z11

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.

Excludes1

  • encounter for diagnostic examination-code to sign or symptom

Notes that also apply

Block Z00-Z13 instructions (Notes 1, Excludes2 1): printed on the block page.

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • Screening (for)cholera → Z11.0
  • Screening (for)pulmonary tuberculosis → Z11.1
  • Screening (for)respiratory tuberculosis → Z11.1
  • Screening (for)tuberculosis, respiratory → Z11.1
  • Test, tests, testing (for)Mantoux (for tuberculosis) → Z11.1
  • Test, tests, testing (for)tuberculin → Z11.1
  • Screening (for)brucellosis → Z11.2
  • Screening (for)diphtheria → Z11.2
  • Screening (for)leprosy → Z11.2
  • Screening (for)plague → Z11.2
  • Screening (for)tetanus → Z11.2
  • Screening (for)whooping cough → Z11.2
  • Screening (for)gonorrhea → Z11.3
  • Screening (for)sexually-transmitted disease NEC → Z11.3
  • Screening (for)syphilis → Z11.3
  • Screening (for)venereal disease → Z11.3
  • Test, tests, testing (for)Wassermann → Z11.3
  • Screening (for)human immunodeficiency virus (HIV) → Z11.4
  • Screening (for)human papillomavirus → Z11.51
  • COVID-19screening → Z11.52
  • Screening (for)coronavirus (disease) (novel) 2019 → Z11.52
  • Screening (for)COVID-19 → Z11.52
  • Screening (for)SARS-CoV-2 → Z11.52
  • Screening (for)arthropod-borne viral disease NEC → Z11.59
  • Screening (for)dengue fever → Z11.59
  • Screening (for)encephalitis, viral (mosquito- or tick-borne) → Z11.59
  • Screening (for)hemorrhagic fever → Z11.59
  • Screening (for)measles → Z11.59
  • Screening (for)poliomyelitis → Z11.59
  • Screening (for)rubella → Z11.59
  • Screening (for)viral encephalitis (mosquito- or tick-borne) → Z11.59
  • Screening (for)yellow fever → Z11.59
  • Screening (for)filariasis → Z11.6
  • Screening (for)helminthiasis (intestinal) → Z11.6
  • Screening (for)leishmaniasis → Z11.6
  • Screening (for)malaria → Z11.6
  • Screening (for)protozoal disease → Z11.6
  • Screening (for)schistosomiasis → Z11.6
  • Screening (for)sleeping sickness → Z11.6
  • Screening (for)trypanosomiasis → Z11.6

47 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy