2022 ICD-10-CM Code B27

Infectious mononucleosis

Version 2021

Not Valid for Submission

ICD-10:B27
Short Description:Infectious mononucleosis
Long Description:Infectious mononucleosis

Code Classification

  • Certain infectious and parasitic diseases (A00–B99)
    • Other viral diseases (B25-B34)
      • Infectious mononucleosis (B27)

B27 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of infectious mononucleosis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Infectious mononucleosis

Non-specific codes like B27 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for infectious mononucleosis:

  • NON-BILLABLE CODE - B27.0 for Gammaherpesviral mononucleosis
  • BILLABLE CODE - Use B27.00 for Gammaherpesviral mononucleosis without complication
  • BILLABLE CODE - Use B27.01 for Gammaherpesviral mononucleosis with polyneuropathy
  • BILLABLE CODE - Use B27.02 for Gammaherpesviral mononucleosis with meningitis
  • BILLABLE CODE - Use B27.09 for Gammaherpesviral mononucleosis with other complications
  • NON-BILLABLE CODE - B27.1 for Cytomegaloviral mononucleosis
  • BILLABLE CODE - Use B27.10 for Cytomegaloviral mononucleosis without complications
  • BILLABLE CODE - Use B27.11 for Cytomegaloviral mononucleosis with polyneuropathy
  • BILLABLE CODE - Use B27.12 for Cytomegaloviral mononucleosis with meningitis
  • BILLABLE CODE - Use B27.19 for Cytomegaloviral mononucleosis with other complication
  • NON-BILLABLE CODE - B27.8 for Other infectious mononucleosis
  • BILLABLE CODE - Use B27.80 for Other infectious mononucleosis without complication
  • BILLABLE CODE - Use B27.81 for Other infectious mononucleosis with polyneuropathy
  • BILLABLE CODE - Use B27.82 for Other infectious mononucleosis with meningitis
  • BILLABLE CODE - Use B27.89 for Other infectious mononucleosis with other complication
  • NON-BILLABLE CODE - B27.9 for Infectious mononucleosis, unspecified
  • BILLABLE CODE - Use B27.90 for Infectious mononucleosis, unspecified without complication
  • BILLABLE CODE - Use B27.91 for Infectious mononucleosis, unspecified with polyneuropathy
  • BILLABLE CODE - Use B27.92 for Infectious mononucleosis, unspecified with meningitis
  • BILLABLE CODE - Use B27.99 for Infectious mononucleosis, unspecified with other complication

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code B27:


Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Clinical Information

Information for Patients


Infectious Mononucleosis

Infectious mononucleosis, or "mono", is an infection usually caused by the Epstein-Barr virus. The virus spreads through saliva, which is why it's sometimes called "kissing disease." Mono occurs most often in teens and young adults. However, you can get it at any age. Symptoms of mono include

Sometimes you may also have a swollen spleen. Serious problems are rare.

A blood test can show if you have mono. Most people get better in two to four weeks. However, you may feel tired for a few months afterward. Treatment focuses on helping symptoms and includes medicines for pain and fever, warm salt water gargles and plenty of rest and fluids.


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)