Encounter for screening for infectious and parasitic diseases (Z11)
The Z11 codes cover medical encounters specifically for screening infectious and parasitic diseases, ranging from intestinal infections to sexually transmitted and viral illnesses. These codes are essential for documenting preventive screening visits when no active infection has been diagnosed.
The ICD-10 code for screening infectious diseases includes categories like Z11.0 for intestinal infectious diseases and Z11.1 for respiratory tuberculosis, which is associated with tests such as chest X-rays and Mantoux tests. For bacterial infections such as Lyme disease, Z11.2 is used, while sexually transmitted infections like syphilis are captured under Z11.3. Human immunodeficiency virus (HIV) screening corresponds to Z11.4, and there are distinct codes for viral disease screenings including human papillomavirus (HPV) with Z11.51 and COVID-19 under Z11.52. Other protozoal and parasitic diseases, such as toxoplasmosis, fall under Z11.6, and latent tuberculosis testing uses Z11.7. When the specific disease screening is unspecified, Z11.9 applies. These codes help healthcare providers accurately record encounters related to preventive infectious disease testing without confirmed illness.
Factors influencing health status and contact with health services (Z00–Z99)
Persons encountering health services for examinations (Z00-Z13)
Z11 Encounter for screening for infectious and parasitic diseases
- 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
Encounter for screening for infectious and parasitic diseases (Z11)
Instructional Notations
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
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
