ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesB26.81

B26.81

Mumps hepatitis

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

Code Description

ICD-10 B26.81 is a billable code used to indicate a diagnosis of mumps hepatitis.

Key Diagnostic Point:

Mumps hepatitis is a viral infection caused by the mumps virus, which primarily affects the salivary glands but can also lead to inflammation of the liver. This condition is characterized by the presence of jaundice, elevated liver enzymes, and abdominal pain. The mumps virus is an RNA virus belonging to the Paramyxoviridae family. Hepatitis due to mumps is relatively rare and typically occurs in individuals who have not been vaccinated against the mumps virus. Diagnosis is often made through serological testing for mumps-specific IgM antibodies, which indicate a recent infection. In some cases, liver function tests may reveal elevated transaminases, suggesting hepatic involvement. While most patients recover without complications, severe cases can lead to acute liver failure. Treatment is primarily supportive, focusing on symptom management, as there are no specific antiviral therapies for mumps hepatitis. Vaccination with the MMR (measles, mumps, rubella) vaccine is the most effective preventive measure against mumps and its complications, including hepatitis.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Limited awareness of mumps hepatitis among healthcare providers.
  • Variability in clinical presentation and severity of symptoms.
  • Need for serological confirmation of mumps infection.
  • Differentiation from other viral hepatitis causes.

Audit Risk Factors

  • Inadequate documentation of serological test results.
  • Failure to document vaccination status.
  • Misinterpretation of liver function test results.
  • Inconsistent clinical notes regarding symptoms.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical history, serological test results, and vaccination status.

Common Clinical Scenarios

Patients presenting with fever, parotitis, and jaundice.

Billing Considerations

Ensure comprehensive documentation of all symptoms and laboratory findings.

Gastroenterology

Documentation Requirements

Liver function tests, imaging studies if performed, and clinical assessment of liver disease.

Common Clinical Scenarios

Patients with elevated liver enzymes and a history of mumps infection.

Billing Considerations

Document any differential diagnoses considered and rationale for mumps hepatitis diagnosis.

Coding Guidelines

Inclusion Criteria

Use B26.81 When
  • According to ICD
  • 10 coding guidelines, B26
  • 81 should be used when there is confirmed mumps infection with hepatic involvement
  • Proper documentation of serological tests and clinical findings is essential for accurate coding

Exclusion Criteria

Do NOT use B26.81 When
  • Exclusion criteria include other viral hepatitis diagnoses unless mumps is also confirmed

Related CPT Codes

86765CPT Code

Mumps antibody test

Clinical Scenario

Used to confirm mumps infection in patients presenting with hepatitis symptoms.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Infectious disease specialists should ensure comprehensive testing protocols are followed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mumps-related conditions, including mumps hepatitis. This specificity aids in better tracking of disease prevalence and outcomes, ultimately improving patient care and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mumps-related conditions, including mumps hepatitis. This specificity aids in better tracking of disease prevalence and outcomes, ultimately improving patient care and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mumps-related conditions, including mumps hepatitis. This specificity aids in better tracking of disease prevalence and outcomes, ultimately improving patient care and resource allocation.

Resources

Clinical References

  • •
    CDC Mumps Information

Coding & Billing References

  • •
    CDC Mumps Information

Frequently Asked Questions

What are the symptoms of mumps hepatitis?

Symptoms may include jaundice, abdominal pain, fever, and elevated liver enzymes. Some patients may also experience parotitis.

How is mumps hepatitis diagnosed?

Diagnosis is made through serological testing for mumps-specific IgM antibodies and evaluation of liver function tests.

Is there a vaccine for mumps hepatitis?

Yes, the MMR vaccine protects against mumps and its complications, including hepatitis.