2020 ICD-10-CM Diagnosis Code B26.1

Mumps meningitis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B26.1 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 B26.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B26.1 - other international versions of ICD-10 B26.1 may differ.
The following code(s) above B26.1 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 B26.1:
  • 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
  • B26
    ICD-10-CM Diagnosis Code B26

    Mumps

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • epidemic parotitis
    • infectious parotitis
    Mumps
ICD-10-CM B26.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 023 Craniotomy with major device implant or acute complex cns pdx with mcc or chemotherapy implant or epilepsy with neurostimulator
  • 024 Craniotomy with major device implant or acute complex cns pdx without mcc
  • 075 Viral meningitis with cc/mcc
  • 076 Viral meningitis without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert B26.1 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
Code annotations containing back-references to B26.1:
  • Type 1 Excludes: A87
    , G02
    ICD-10-CM Diagnosis Code A87

    Viral meningitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • meningitis due to herpesvirus [herpes simplex] (B00.3)
    • meningitis due to herpesvirus [herpes simplex] (B00.3)
    • meningitis due to measles virus (B05.1)
    • meningitis due to mumps virus (B26.1)
    • meningitis due to poliomyelitis virus (A80.-)
    • meningitis due to zoster (B02.1)
    ICD-10-CM Diagnosis Code G02

    Meningitis in other infectious and parasitic diseases classified elsewhere

      2016 2017 2018 2019 2020 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 fourth 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)

Diagnosis Index entries containing back-references to B26.1:
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
    ICD-10-CM Diagnosis Code G03.9

    Meningitis, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Arachnoiditis (spinal) NOS
    • in (due to)
      • mumps B26.1 (virus)
  • Mumps B26.9
    ICD-10-CM Diagnosis Code B26.9

    Mumps without complication

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Mumps NOS
    • Mumps parotitis NOS
    • meningitis B26.1 (aseptic)

ICD-10-CM Codes Adjacent To B26.1
B19.9 Unspecified viral hepatitis without hepatic coma
B20 Human immunodeficiency virus [HIV] disease
B25 Cytomegaloviral disease
B25.0 Cytomegaloviral pneumonitis
B25.1 Cytomegaloviral hepatitis
B25.2 Cytomegaloviral pancreatitis
B25.8 Other cytomegaloviral diseases
B25.9 Cytomegaloviral disease, unspecified
B26 Mumps
B26.0 Mumps orchitis
B26.1 Mumps meningitis
B26.2 Mumps encephalitis
B26.3 Mumps pancreatitis
B26.8 Mumps with other complications
B26.81 Mumps hepatitis
B26.82 Mumps myocarditis
B26.83 Mumps nephritis
B26.84 Mumps polyneuropathy
B26.85 Mumps arthritis
B26.89 Other mumps complications
B26.9 Mumps without complication

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