ICD-10-CM · Chapter 1 · A00–B99
B33.20
Viral carditis, unspecified
Certain infectious and parasitic diseases
Quick facts
- Code
- B33.20
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- B33 — Other viral diseases, not elsewhere classified
- Specificity
- 5 characters
How coders use this code
ICD-10-CM B33.20 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of viral carditis, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in B33
- B33Other viral diseases, not elsewhere classified
- B33.0Epidemic myalgia
- B33.1Ross River disease
- B33.2Viral carditis
- B33.21Viral endocarditis
- B33.22Viral myocarditis
- B33.23Viral pericarditis
- B33.24Viral cardiomyopathy
- B33.3Retrovirus infections, not elsewhere classified
- B33.4Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]
- B33.8Other specified viral diseases
Want to learn coding?
Master ICD-10-CM in 90 days.
Medita's 90-day curriculum is calibrated to the CPC (AAPC), CCA, and CCS (AHIMA) exam blueprints. Day 1 is free.