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 CodesB08.4

B08.4

Mumps orchitis

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

Code Description

ICD-10 B08.4 is a billable code used to indicate a diagnosis of mumps orchitis.

Key Diagnostic Point:

Mumps orchitis is a viral infection characterized by inflammation of one or both testicles, typically occurring as a complication of mumps, a contagious viral disease caused by the mumps virus. The condition is most commonly seen in post-pubertal males, where it can lead to significant discomfort, swelling, and potential complications such as infertility. Orchitis usually presents with acute onset of testicular pain, swelling, and tenderness, often accompanied by systemic symptoms such as fever, malaise, and headache. Diagnosis is primarily clinical, supported by the patient's history of mumps infection or vaccination status. Laboratory tests may include serological assays to detect mumps virus-specific IgM antibodies. Vaccination against mumps, typically administered as part of the MMR (measles, mumps, rubella) vaccine, has significantly reduced the incidence of mumps orchitis in vaccinated populations. However, outbreaks can still occur, particularly in unvaccinated individuals or in communities with low vaccination rates. Complications of mumps orchitis can include atrophy of the testis, chronic pain, and, in rare cases, infertility, particularly if both testicles are affected.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires knowledge of viral infections and their complications.
  • Differentiation from other causes of orchitis (e.g., bacterial infections).
  • Documentation of vaccination history is crucial.
  • Potential for complications that may require additional coding.

Audit Risk Factors

  • Inadequate documentation of vaccination status.
  • Failure to document the acute nature of symptoms.
  • Misdiagnosis or coding of orchitis due to other causes.
  • Lack of supporting laboratory results.

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed clinical notes on symptoms, physical examination findings, and any imaging or laboratory results.

Common Clinical Scenarios

Patients presenting with testicular pain and swelling, particularly following a recent mumps infection.

Billing Considerations

Ensure to document any potential complications such as infertility or chronic pain.

Infectious Disease

Documentation Requirements

Comprehensive history of exposure, vaccination status, and laboratory confirmation of mumps infection.

Common Clinical Scenarios

Outbreaks of mumps in unvaccinated populations leading to orchitis cases.

Billing Considerations

Focus on the epidemiology of mumps and its complications.

Coding Guidelines

Inclusion Criteria

Use B08.4 When
  • According to ICD
  • 10 guidelines, B08
  • 4 should be used when the diagnosis of mumps orchitis is confirmed, with documentation supporting the viral etiology and any relevant complications
  • viral causes

Exclusion Criteria

Do NOT use B08.4 When
  • Exclusion criteria include orchitis due to non

Related CPT Codes

88160CPT Code

Testicular ultrasound

Clinical Scenario

Used to evaluate testicular swelling in suspected orchitis.

Documentation Requirements

Indication for ultrasound must be clearly documented.

Specialty Considerations

Urologists may frequently order this test for diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mumps orchitis, improving the accuracy of data collection and reimbursement processes. It emphasizes the importance of documenting viral etiology and vaccination status.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mumps orchitis, improving the accuracy of data collection and reimbursement processes. It emphasizes the importance of documenting viral etiology and vaccination status.

Reimbursement & Billing Impact

reimbursement processes. It emphasizes the importance of documenting viral etiology and vaccination status.

Resources

Clinical References

  • •
    CDC Mumps Information

Coding & Billing References

  • •
    CDC Mumps Information

Frequently Asked Questions

What are the common symptoms of mumps orchitis?

Common symptoms include sudden onset of testicular pain, swelling, tenderness, fever, and malaise. Patients may also experience systemic symptoms associated with mumps.