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ICD-10-CM Codes
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A00-B99
Certain infectious and parasitic diseases
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B25-B34
Other viral diseases
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B33-
Other viral diseases, not elsewhere classified
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2021 ICD-10-CM Diagnosis Code B33.21
2021 ICD-10-CM Diagnosis Code B33.21
Viral endocarditis
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- B33.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2021 edition of ICD-10-CM B33.21 became effective on October 1, 2020.
- This is the American ICD-10-CM version of B33.21 - other international versions of ICD-10 B33.21 may differ.
The following code(s) above
B33.21 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
B33.21:
- 306 Cardiac congenital and valvular disorders with mcc
- 307 Cardiac congenital and valvular disorders without mcc
Convert B33.21 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
- 2021 (effective 10/1/2020): No change
- Coxsackie (virus) (infection) B34.1
ICD-10-CM Diagnosis Code B34.1
Enterovirus infection, unspecified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
Applicable To- Coxsackievirus infection NOS
- Echovirus infection NOS
- Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) I38
ICD-10-CM Diagnosis Code I38
Endocarditis, valve unspecified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
Includes- endocarditis (chronic) NOS
- valvular incompetence NOS
- valvular insufficiency NOS
- valvular regurgitation NOS
- valvular stenosis NOS
- valvulitis (chronic) NOS
Type 1 Excludes- congenital insufficiency of cardiac valve NOS (Q24.8)
- congenital stenosis of cardiac valve NOS (Q24.8)
- endocardial fibroelastosis (I42.4)
- endocarditis specified as rheumatic (I09.1)
ICD-10-CM Codes Adjacent To B33.21
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
B33.21
Viral endocarditis
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
B34.2 Coronavirus infection, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
