2020 ICD-10-CM Diagnosis Code B33.20

Viral carditis, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B33.20 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 B33.20 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B33.20 - other international versions of ICD-10 B33.20 may differ.
The following code(s) above B33.20 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 B33.20:
  • 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
  • B33.2
    ICD-10-CM Diagnosis Code B33.2

    Viral carditis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Coxsackie (virus) carditis
    Viral carditis
Approximate Synonyms
  • Coxsackie carditis
  • Viral carditis
ICD-10-CM B33.20 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 314 Other circulatory system diagnoses with mcc
  • 315 Other circulatory system diagnoses with cc
  • 316 Other circulatory system diagnoses without cc/mcc

Convert B33.20 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 B33.20:
  • Carditis (acute) (bacterial) (chronic) (subacute) I51.89
    ICD-10-CM Diagnosis Code I51.89

    Other ill-defined heart diseases

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Carditis (acute)(chronic)
    • Pancarditis (acute)(chronic)
    • viral B33.20
  • Coxsackie (virus) (infection) B34.1
    ICD-10-CM Diagnosis Code B34.1

    Enterovirus infection, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Coxsackievirus infection NOS
    • Echovirus infection NOS
    • carditis B33.20

ICD-10-CM Codes Adjacent To B33.20
B30.0 Keratoconjunctivitis due to adenovirus
B30.1 Conjunctivitis due to adenovirus
B30.2 Viral pharyngoconjunctivitis
B30.3 Acute epidemic hemorrhagic conjunctivitis (enteroviral)
B30.8 Other viral conjunctivitis
B30.9 Viral conjunctivitis, unspecified
B33 Other viral diseases, not elsewhere classified
B33.0 Epidemic myalgia
B33.1 Ross River disease
B33.2 Viral carditis
B33.20 …… unspecified
B33.21 Viral endocarditis
B33.22 Viral myocarditis
B33.23 Viral pericarditis
B33.24 Viral cardiomyopathy
B33.3 Retrovirus infections, not elsewhere classified
B33.4 Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]
B33.8 Other specified viral diseases
B34 Viral infection of unspecified site
B34.0 Adenovirus infection, unspecified
B34.1 Enterovirus infection, unspecified

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