ICD-10-CM Code Z20.4

Contact with and (suspected) exposure to rubella

Version 2020 Billable Code Unacceptable Principal Diagnosis

Valid for Submission

Z20.4 is a billable code used to specify a medical diagnosis of contact with and (suspected) exposure to rubella. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Z20.4 might also be used to specify conditions or terms like exposure to rubella in pregnancy or exposure to rubella virus.

The code Z20.4 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

ICD-10:Z20.4
Short Description:Contact with and (suspected) exposure to rubella
Long Description:Contact with and (suspected) exposure to rubella

Index to Diseases and Injuries

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 Z20.4 are found in the index:


Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Synonyms

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

  • Exposure to rubella in pregnancy
  • Exposure to Rubella virus

Convert Z20.4 to ICD-9

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 w and exposure to communicable diseases (Z20) (suspected)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Rubella

Rubella is an infection caused by a virus. It is usually mild with fever and a rash. About half of the people who get rubella do not have symptoms. If you do get them, symptoms may include

  • A rash that starts on the face and spreads to the body
  • Mild fever
  • Aching joints, especially in young women
  • Swollen glands

Rubella is most dangerous for a pregnant woman's baby. It can cause miscarriage or birth defects.

Rubella spreads when an infected person coughs or sneezes. People without symptoms can still spread it. There is no treatment, but the measles-mumps-rubella (MMR) vaccine can prevent it.

Centers for Disease Control and Prevention


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