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ICD-10-CM Codes
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Z00-Z99
Factors influencing health status and contact with health services
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Z20-Z29
Persons with potential health hazards related to communicable diseases
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Z20-
Contact with and (suspected) exposure to communicable diseases
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2021 ICD-10-CM Diagnosis Code Z20.820
2021 ICD-10-CM Diagnosis Code Z20.820
Contact with and (suspected) exposure to varicella
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- Z20.820 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2021 edition of ICD-10-CM Z20.820 became effective on October 1, 2020.
- This is the American ICD-10-CM version of Z20.820 - other international versions of ICD-10 Z20.820 may differ.
The following code(s) above
Z20.820 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
Z20.820:
Approximate Synonyms
- Exposure to varicella
- Exposure to varicella (chicken pox)
ICD-10-CM Z20.820 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- 951 Other factors influencing health status
Convert Z20.820 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- Contact (with) - see also Exposure (to)
- Exposure (to) T75.89 - see also Contact, with
ICD-10-CM Diagnosis Code T75.89
Other specified effects of external causes
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
ICD-10-CM Codes Adjacent To Z20.820
Z20.4 Contact with and (suspected) exposure to rubella
Z20.5 Contact with and (suspected) exposure to viral hepatitis
Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
Z20.7 Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
Z20.8 Contact with and (suspected) exposure to other communicable diseases
Z20.81 Contact with and (suspected) exposure to other bacterial communicable diseases
Z20.810 Contact with and (suspected) exposure to anthrax
Z20.811 Contact with and (suspected) exposure to meningococcus
Z20.818 Contact with and (suspected) exposure to other bacterial communicable diseases
Z20.82 Contact with and (suspected) exposure to other viral communicable diseases
Z20.820
Contact with and (suspected) exposure to varicella
Z20.821 Contact with and (suspected) exposure to Zika virus
Z20.822 Contact with and (suspected) exposure to COVID-19
Z20.828 Contact with and (suspected) exposure to other viral communicable diseases
Z20.89 Contact with and (suspected) exposure to other communicable diseases
Z20.9 Contact with and (suspected) exposure to unspecified communicable disease
Z21 Asymptomatic human immunodeficiency virus [HIV] infection status
Z22 Carrier of infectious disease
Z22.1 Carrier of other intestinal infectious diseases
Z22.2 Carrier of diphtheria
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.