Z20.9
BillableContact w and exposure to unsp communicable disease
Contact with and (suspected) exposure to unspecified communicable disease
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- •carrier of infectious diseaseZ22
- diagnosed current infectious or parasitic disease -see Alphabetic Index
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(9)
Z20.0Contact w and exposure to intestinal infectious diseases
Z20.1Contact with and (suspected) exposure to tuberculosis
Z20.2Contact w and exposure to infect w a sexl mode of transmiss
Z20.3Contact with and (suspected) exposure to rabies
Z20.4Contact with and (suspected) exposure to rubella
Z20.5Contact with and (suspected) exposure to viral hepatitis
Z20.6Contact w and (suspected) exposure to human immunodef virus
Z20.7Cntct w & expsr to pediculosis, acariasis & oth infestations
Z20.8Contact w and exposure to oth communicable diseases
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(16)
SNOMED CT
- Serious reportable event associated with product or device370901008
- Environment contains infected animal424681004
- Environment contains animals425338002
- Infectious disease suspected473130003
- Infective meningitis suspected773112003
- Infective encephalitis suspected773116000
- Transmission of infectious agent via medicinal product844579007
UMLS
Clinical Terms
- Infectious disease suspected
- Serious reportable event associated with product or device
- Infective encephalitis suspected
- Infective meningitis suspected
- Environment contains infected animal
- Environment contains animals
- Transmission of infectious agent via medicinal product
Frequently Asked Questions
What is the ICD-10 code for contact w and exposure to unsp communicable disease?
The ICD-10-CM code for contact w and exposure to unsp communicable disease is Z20.9. The full clinical description is "Contact with and (suspected) exposure to unspecified communicable disease". Z20.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Z20.9 mean?
ICD-10-CM code Z20.9 represents “Contact with and (suspected) exposure to unspecified communicable disease”. It is classified under Chapter 22: Factors Influencing Health Status and Contact With Health Services and is a billable/specific code that can be used on a claim.
Is Z20.9 a billable code?
Yes, Z20.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Z20.9 in?
Z20.9 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services (codes Z00-Z99).
What codes cannot be used with Z20.9?
Z20.9 has Excludes1 notes indicating codes that cannot be used together with it, including: carrier of infectious disease (Z22.-); diagnosed current infectious or parasitic disease -see Alphabetic Index.
What SNOMED CT codes does Z20.9 map to?
Z20.9 maps to 7 SNOMED CT concepts: 425338002, 424681004, 473130003, 773116000, 773112003, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Z20.9?
Z20.9 is linked to 1 UMLS Concept Unique Identifier: C2910660. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Z20.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like contact w and exposure to unsp communicable disease affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Z20.9?
Z20.9 maps to the ICD-11 code: QC90.Z (Contact with or exposure to communicable diseases, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.