Epidemic myalgia

This code represents Bornholm disease, also known as epidemic pleurodynia, which is an acute viral infection characterized by sudden onset of severe, spasmodic chest and abdominal pain. It is typically caused by coxsackievirus B and can also present with fever, headache, and malaise. The pain is often exacerbated by movement or deep breathing.

Use this code for documented cases of epidemic myalgia or Bornholm disease, where the patient presents with the characteristic acute, severe pleuritic or abdominal pain. Documentation should clearly indicate a diagnosis of epidemic myalgia or pleurodynia, often supported by clinical presentation and sometimes viral studies.

• Differentiate from other causes of chest or abdominal pain, such as myocardial infarction or acute abdomen, which require different coding.
• Do not confuse with other forms of myalgia (e.g., M79.1x for myalgia not elsewhere classified) unless the epidemic nature is specified.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.