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v1.0.0
ICD-10 Guide
ICD-10 CodesB18

B18

Chronic viral hepatitis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 B18 is a billable code used to indicate a diagnosis of chronic viral hepatitis.

Key Diagnostic Point:

Chronic viral hepatitis refers to a long-term infection of the liver caused by hepatitis viruses, primarily hepatitis B (HBV) and hepatitis C (HCV). This condition is characterized by the persistence of viral replication and inflammation in the liver for six months or longer. Chronic hepatitis can lead to significant liver damage, including fibrosis, cirrhosis, and hepatocellular carcinoma. Transmission of these viruses occurs through blood, sexual contact, and from mother to child during childbirth. Management of chronic viral hepatitis involves regular monitoring of liver function, antiviral therapy, and lifestyle modifications to reduce liver strain. Patients may require vaccinations against hepatitis A and B, and those with advanced liver disease may need liver transplantation. The clinical presentation can vary widely, from asymptomatic cases to severe liver dysfunction, necessitating careful evaluation and management by healthcare providers.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of hepatitis viruses (A, B, C, D, E) complicating diagnosis.
  • Need for accurate documentation of chronicity and viral type.
  • Potential for co-infections (e.g., HIV) affecting coding.
  • Variability in treatment protocols and monitoring requirements.

Audit Risk Factors

  • Inadequate documentation of chronicity.
  • Failure to specify the type of hepatitis virus.
  • Misclassification of acute vs. chronic hepatitis.
  • Lack of supporting lab results for diagnosis.

Specialty Focus

Medical Specialties

Gastroenterology

Documentation Requirements

Detailed history of liver disease, lab results, imaging studies, and treatment plans.

Common Clinical Scenarios

Management of patients with chronic hepatitis B or C, monitoring for liver cancer.

Billing Considerations

Ensure documentation reflects the severity of liver disease and any complications.

Infectious Disease

Documentation Requirements

History of exposure, serological testing results, and treatment response.

Common Clinical Scenarios

Patients with co-infections or those requiring antiviral therapy.

Billing Considerations

Document any complications arising from chronic infection.

Coding Guidelines

Inclusion Criteria

Use B18 When
  • Follow official coding guidelines for chronic conditions, ensuring documentation supports the diagnosis of chronic viral hepatitis
  • Include details on the type of virus and any associated complications

Exclusion Criteria

Do NOT use B18 When
  • Exclude acute hepatitis codes unless specified

Related Codes

Child Codes

5 codes
B18.0
Chronic viral hepatitis B with delta-agent
B18.1
Chronic viral hepatitis B with delta-agent
B18.2
Chronic viral hepatitis C
B18.8
Other chronic viral hepatitis
B18.9
Chronic viral hepatitis, unspecified

Related CPT Codes

86803CPT Code

HCV antibody test

Clinical Scenario

Used for screening and diagnosis of hepatitis C.

Documentation Requirements

Document the reason for testing and patient history.

Specialty Considerations

Gastroenterology may require additional liver function tests.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chronic viral hepatitis, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of disease prevalence and management outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chronic viral hepatitis, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of disease prevalence and management outcomes.

Reimbursement & Billing Impact

reimbursement processes. It has also facilitated better tracking of disease prevalence and management outcomes.

Resources

Clinical References

  • •
    CDC Hepatitis B Information
  • •
    CDC Hepatitis C Information

Coding & Billing References

  • •
    CDC Hepatitis B Information
  • •
    CDC Hepatitis C Information

Frequently Asked Questions

What is the difference between acute and chronic viral hepatitis?

Acute viral hepatitis is a short-term infection that typically resolves within six months, while chronic viral hepatitis persists for six months or longer, often leading to long-term liver damage.

How is chronic viral hepatitis transmitted?

Chronic viral hepatitis is primarily transmitted through blood, sexual contact, and from mother to child during childbirth. It is important to practice safe behaviors to reduce the risk of transmission.