B26.0 Mumps orchitis

Name of the Condition

• Mumps orchitis

Summary

Mumps orchitis is a complication of mumps infection that involves inflammation of the testicles. It typically occurs in post-pubertal males and may present with testicular pain, swelling, and systemic symptoms. While often self-limiting, it can lead to long-term effects in some cases.

Causes

Mumps orchitis is caused by the mumps virus, an RNA virus from the Paramyxoviridae family. The virus spreads through respiratory droplets or direct contact with infected saliva, and inflammation of the testicles occurs when the virus infects the testicular tissue.

Risk Factors

• Lack of vaccination against mumps.
• Age, with post-pubertal males at higher risk.
• Close contact with an infected individual.
• Immunocompromised states, such as HIV/AIDS or chemotherapy.

Symptoms

• Sudden onset of testicular pain and swelling.
• Fever.
• Headache.
• Muscle aches.
• Nausea or vomiting.
• Scrotal redness or warmth.

Diagnosis

Diagnosis is based on clinical presentation, including testicular swelling and associated symptoms. Laboratory tests, such as serology for mumps antibodies, may confirm the infection. Ultrasound may be used to assess testicular inflammation or rule out other conditions.

Treatment Options

• Supportive care, including rest, scrotal elevation, and pain relief (e.g., acetaminophen or ibuprofen).
• Cold compresses to reduce swelling.
• Monitoring for complications, such as testicular atrophy.

Prognosis and Follow-Up

Most cases resolve without long-term issues, but some may experience testicular atrophy or reduced fertility. Follow-up may include monitoring for persistent symptoms or fertility concerns.

Complications

• Testicular atrophy.
• Reduced sperm count or fertility issues.
• Rarely, infertility.

Lifestyle & Prevention

• Vaccination against mumps is the most effective prevention.
• Avoid close contact with infected individuals.
• Practice good hygiene, such as handwashing.

When to Seek Professional Help

• Severe testicular pain or swelling.
• High fever or signs of systemic infection.
• Symptoms worsening or not improving after a few days.

Tips for Medical Coders

• Code B26.0 is specific to mumps orchitis and should be used when the condition is documented.
• Ensure documentation supports the diagnosis, including clinical findings and any associated symptoms.
• Do not use this code for orchitis from other causes; verify the link to mumps infection.