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v1.0.0
ICD-10 Guide
ICD-10 CodesB17.9

B17.9

Acute viral hepatitis, unspecified

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

Code Description

ICD-10 B17.9 is a billable code used to indicate a diagnosis of acute viral hepatitis, unspecified.

Key Diagnostic Point:

Acute viral hepatitis is an inflammation of the liver caused by viral infections. The unspecified designation indicates that the specific virus type (such as hepatitis A, B, C, D, or E) has not been identified. Acute viral hepatitis can present with a range of symptoms including fatigue, jaundice, abdominal pain, and elevated liver enzymes. Transmission routes vary depending on the virus; for instance, hepatitis A is primarily transmitted via the fecal-oral route, while hepatitis B and C are often spread through blood and bodily fluids. Management of acute viral hepatitis typically involves supportive care, including hydration and rest, as most patients recover without specific antiviral treatment. However, monitoring for complications such as acute liver failure or progression to chronic hepatitis is crucial. Chronic management may be necessary if the infection persists, particularly for hepatitis B and C, which can lead to long-term liver damage, cirrhosis, or hepatocellular carcinoma. Understanding the nuances of acute viral hepatitis is essential for accurate coding and effective patient management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of viral hepatitis
  • Identifying acute vs. chronic conditions
  • Variability in clinical presentation
  • Need for laboratory confirmation

Audit Risk Factors

  • Inadequate documentation of viral type
  • Misclassification of acute vs. chronic hepatitis
  • Failure to document laboratory results
  • Inconsistent symptom reporting

Specialty Focus

Medical Specialties

Gastroenterology

Documentation Requirements

Detailed history of symptoms, laboratory results, and imaging studies.

Common Clinical Scenarios

Patients presenting with jaundice, elevated liver enzymes, or abdominal pain.

Billing Considerations

Ensure documentation specifies the acute nature and any laboratory findings to support coding.

Infectious Disease

Documentation Requirements

Comprehensive travel history, exposure history, and serological testing results.

Common Clinical Scenarios

Patients with recent travel to endemic areas or known exposure to infected individuals.

Billing Considerations

Documenting the specific virus type when known is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use B17.9 When
  • According to ICD
  • 10 coding guidelines, acute viral hepatitis should be coded based on the specific virus type when known
  • If the type is unspecified, B17
  • 9 is appropriate
  • Coders should ensure that documentation supports the diagnosis and reflects the acute nature of the condition

Exclusion Criteria

Do NOT use B17.9 When
No specific exclusions found.

Related CPT Codes

86704CPT Code

Hepatitis A antibody test

Clinical Scenario

Used to confirm hepatitis A infection in patients with acute symptoms.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Gastroenterology may require additional tests for differential diagnosis.

86803CPT Code

Hepatitis B surface antigen test

Clinical Scenario

Used to confirm hepatitis B infection in patients presenting with acute hepatitis symptoms.

Documentation Requirements

Document the clinical indication for testing.

Specialty Considerations

Infectious disease specialists may require comprehensive serological panels.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of viral hepatitis, improving the accuracy of data collection and reimbursement. B17.9 serves as a catch-all for unspecified cases, but coders are encouraged to specify the type when possible.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of viral hepatitis, improving the accuracy of data collection and reimbursement. B17.9 serves as a catch-all for unspecified cases, but coders are encouraged to specify the type when possible.

Reimbursement & Billing Impact

reimbursement. B17.9 serves as a catch-all for unspecified cases, but coders are encouraged to specify the type when possible.

Resources

Clinical References

  • •
    CDC Viral Hepatitis
  • •
    American Association for the Study of Liver Diseases

Coding & Billing References

  • •
    CDC Viral Hepatitis
  • •
    American Association for the Study of Liver Diseases

Frequently Asked Questions

What is the difference between acute and chronic viral hepatitis?

Acute viral hepatitis is a short-term illness that typically resolves within six months, while chronic viral hepatitis persists for six months or longer and can lead to serious liver complications.

When should I use B17.9 instead of a specific hepatitis code?

Use B17.9 when the specific type of viral hepatitis is not identified or documented. If the virus type is known, use the corresponding specific code.