1. ICD-10-CM Codes
›
2. A00-B99
›
3. B25-B34
›
4. B27-
›
5. 2023 ICD-10-CM Diagnosis Code B27

2023 ICD-10-CM Diagnosis Code B27

Infectious mononucleosis

2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

• B27 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• The 2023 edition of ICD-10-CM B27 became effective on October 1, 2022.
• This is the American ICD-10-CM version of B27 - other international versions of ICD-10 B27 may differ.

• A common, acute infection usually caused by the epstein-barr virus (herpesvirus 4, human). There is an increase in mononuclear white blood cells and other atypical lymphocytes, generalized lymphadenopathy, splenomegaly, and occasionally hepatomegaly with hepatitis.
• Acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing.
• Infectious mononucleosis, or "mono", is an infection 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 15 to 17-year-olds. However, you can get it at any age. Symptoms of mono include
  • fever
  • sore throat
  • swollen lymph glands
  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.

• 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
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Type 1 Excludes: G02
  , D72.821
  , J02.8
  ICD-10-CM Diagnosis Code G02

  Meningitis in other infectious and parasitic diseases classified elsewhere

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Manifestation Code

  Code First

  • underlying disease, such as:
  • African trypanosomiasis (B56.-)
  • poliovirus infection (A80.-)

  Type 1 Excludes

  • candidal meningitis (B37.5)
  • coccidioidomycosis meningitis (B38.4)
  • cryptococcal meningitis (B45.1)
  • herpesviral [herpes simplex] meningitis (B00.3)
  • infectious mononucleosis complicated by meningitis (B27.- with fifth character 2)
  • measles complicated by meningitis (B05.1)
  • meningoencephalitis and meningomyelitis in other infectious and parasitic diseases classified elsewhere (G05)
  • mumps meningitis (B26.1)
  • rubella meningitis (B06.02)
  • varicella [chickenpox] meningitis (B01.0)
  • zoster meningitis (B02.1)
  ICD-10-CM Diagnosis Code D72.821

  Monocytosis (symptomatic)

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Type 1 Excludes

  • infectious mononucleosis (B27.-)
  ICD-10-CM Diagnosis Code J02.8

  Acute pharyngitis due to other specified organisms

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Type 1 Excludes

  • acute pharyngitis due to coxsackie virus (B08.5)
  • acute pharyngitis due to gonococcus (A54.5)
  • acute pharyngitis due to herpes [simplex] virus (B00.2)
  • acute pharyngitis due to infectious mononucleosis (B27.-)
  • enteroviral vesicular pharyngitis (B08.5)

  Use Additional

  • code (B95-B97) to identify infectious agent

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.