2024 ICD-10-CM Diagnosis Code Z20.828

Contact with and (suspected) exposure to other viral communicable diseases

ICD-10-CM Code:
Z20.828
ICD-10 Code for:
Contact w and exposure to oth viral communicable diseases
Is Billable?
Yes - Valid for Submission
Code Navigator:

Code Classification

  • Factors influencing health status and contact with health services
    (Z00–Z99)
    • Persons with potential health hazards related to communicable diseases
      (Z20-Z29)
      • Contact with and exposure to communicable diseases (Z20)
        (suspected)

Z20.828 is a billable diagnosis code used to specify a medical diagnosis of contact with and (suspected) exposure to other viral communicable diseases. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute poliomyelitis suspected
  • Exposure to anogenital Herpes simplex virus
  • Exposure to coronavirus infection
  • Exposure to cytomegalovirus
  • Exposure to Ebola virus
  • Exposure to European tick-borne encephalitis virus
  • Exposure to herpes simplex virus
  • Exposure to Human poliovirus
  • Exposure to Influenza A virus subtype H1N1
  • Exposure to Influenzavirus
  • Exposure to Measles virus
  • Exposure to meningitis
  • Exposure to monkeypox virus
  • Exposure to Mumps virus
  • Exposure to Severe acute respiratory syndrome coronavirus
  • Exposure to Variola virus
  • Exposure to viral disease
  • Exposure to viral meningitis
  • Measles suspected
  • Mumps suspected
  • Occupational exposure to monkeypox virus
  • Smallpox suspected
  • Suspected coronavirus infection
  • Suspected dengue
  • Suspected Ebola virus disease
  • Suspected infection caused by novel Influenza A virus variant
  • Suspected monkeypox
  • Suspected respiratory disease
  • Suspected respiratory disease
  • Suspected SARS
  • Suspected soft tissue infection
  • Suspected viral infection of skin
  • Viral hemorrhagic fever suspected
  • Yellow fever suspected

Clinical Classification

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert Z20.828 to ICD-9-CM

  • ICD-9-CM Code: V01.79 - Viral dis contact NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Viral Infections

What are viruses?

Viruses are very tiny germs. They are made of genetic material (either DNA or RNA) inside of a protein coating. There are a huge number of viruses on earth. Only a small number of them can infect humans. Those viruses can infect our cells, which may cause disease. Some of the diseases that viruses can cause include the common cold, the flu, COVID-19, and HIV.

How are viruses spread?

Viruses can be spread in different ways:

  • Through droplets and particles that are breathed out by someone who has the infection. You might breathe in the droplets or particles, or they could land on your mouth, nose, or eyes.
  • By touching surfaces or objects that have the virus on them and then touching your mouth, nose, or eyes.
  • From the pregnant parent to the baby during pregnancy.
  • Through contaminated food or water.
  • By being bitten by an infected insect or animal.
  • Through sexual contact (usually vaginal, anal and oral sex) with someone who has the infection.

How do viruses cause disease?

Viruses are like hijackers. They invade living, normal cells. They then use those cells to multiply (make copies of themselves). This process is also called replication. The process can kill, damage, or change the infected cells. Sometimes this can make you sick. The symptoms can range from mild to very severe. Other times, your immune system may be able to fight it off and you may not have any symptoms.

Each different virus usually only infects one type of cell in your body. For example, hepatitis viruses affect the cells in the liver. HIV infects a certain type of immune system cell.

What are the treatments for viral infections?

For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. There are antiviral medicines to treat some viral infections. Antibiotics do not work for viral infections.

Can viral infections be prevented?

Vaccines can help prevent you from getting many viral diseases. You may be able to prevent some viral infections by:

  • Proper hand washing.
  • Paying attention to food safety.
  • Cleaning surfaces that may be infected with germs.
  • Avoiding contact with wild animals.
  • Preventing insect bites by using insect repellent when you go outdoors. If you travel to an area that has a high risk of diseases from insect bites, also wear long pants, shirts, and socks.
  • Practicing safe sex (using a condom every time you have anal, vaginal, or oral sex).
  • Avoiding close contact with people who are sick.

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.