ICD-10-CM Codes
A00-B99
B25-B34
B33-
2023 ICD-10-CM Diagnosis Code B33.20

2023 ICD-10-CM Diagnosis Code B33.20

Viral carditis, unspecified

2016

2017

2018

2019

2020

2021

2022

2023

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 2023 edition of ICD-10-CM B33.20 became effective on October 1, 2022.
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
2023 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
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 v40.0):

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
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): 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
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
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.

2023 ICD-10-CM Diagnosis Code B33.20

Viral carditis, unspecified

Certain infectious and parasitic diseases

Viral carditis

Other ill-defined heart diseases

Enterovirus infection, unspecified