Z20.828 is a valid billable ICD-10 diagnosis code for Contact with and (suspected) exposure to other viral communicable diseases . It is found in the 2021 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2020 - Sep 30, 2021 .
DO NOT include the decimal point when electronically filing claims as it may be rejected. Some clearinghouses may remove it for you but to avoid having a rejected claim due to an invalid ICD-10 code, do not include the decimal point when submitting claims electronically. See also:
This code was replaced in the 2022 ICD-10 code set with the code (s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2021. This code was replaced for the FY 2022 (October 1, 2021 - September 30, 2022).
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code (s). The following references for the code Z20.828 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code Z20.828 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Viruses are very tiny germs. They are made of genetic material inside of a protein coating. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19.
It also says that Z20.828 is used for a known or suspected COVID-19 exposure, if they have signs and symptoms consistent with COVID-19, and the test is negative, inconclusive, or unknown (e.g., pending). They base this on the guideline that “Z20 codes may be used for patients who are in an area where a disease is epidemic.”.
Z03.818 means the likelihood of exposure to COVID-19 is felt to be low or nil, but the provider still believes that a work-up is indicated. Both codes should be able to be used with codes signifying symptoms that elicited the investigation, if any.
Their code: Z20.810, Contact with and (suspected) exposure to anthrax. A nervous office worker who opened up a letter with white powder enclosed, but, after work-up, the Centers for Disease Control and Prevention (CDC) and the FBI determined that it was only powdered sugar.
Z03.818 must be principal, and that would make no sense in this hypothetical scenario. The principal diagnosis and principal procedure should be related to the operative intervention. You shouldn’t be using the screening code because this is a diagnostic study, not a screening one.