2020 ICD-10-CM Diagnosis Code B27.80

Other infectious mononucleosis without complication

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B27.80 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM B27.80 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B27.80 - other international versions of ICD-10 B27.80 may differ.
The following code(s) above B27.80 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B27.80:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • B27
    ICD-10-CM Diagnosis Code B27

    Infectious mononucleosis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • glandular fever
    • monocytic angina
    • Pfeiffer's disease
    Infectious mononucleosis
ICD-10-CM B27.80 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert B27.80 to ICD-9-CM

Code History
  • 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

Diagnosis Index entries containing back-references to B27.80:

ICD-10-CM Codes Adjacent To B27.80
B27.00 …… without complication
B27.01 …… with polyneuropathy
B27.02 …… with meningitis
B27.09 …… with other complications
B27.1 Cytomegaloviral mononucleosis
B27.10 …… without complications
B27.11 …… with polyneuropathy
B27.12 …… with meningitis
B27.19 …… with other complication
B27.8 Other infectious mononucleosis
B27.80 …… without complication
B27.81 …… with polyneuropathy
B27.82 …… with meningitis
B27.89 …… with other complication
B27.9 Infectious mononucleosis, unspecified
B27.90 …… without complication
B27.91 …… with polyneuropathy
B27.92 …… with meningitis
B27.99 …… with other complication
B30 Viral conjunctivitis
B30.0 Keratoconjunctivitis due to adenovirus

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