Actinomycotic infection of unspecified site

This code represents an infection caused by bacteria of the genus Actinomyces that has not been specified to a particular anatomical location. Actinomycosis is a chronic, suppurative infection characterized by abscess formation, tissue fibrosis, and the presence of "sulfur granules."

This code is appropriate when the medical record clearly documents an actinomycotic infection, but the specific site of involvement (e.g., cervicofacial, thoracic, abdominal) is not identified or is unknown. It should be used when the provider's documentation confirms the diagnosis of actinomycosis without further anatomical detail.

• Avoid using this code if a more specific site of actinomycosis is documented; always code to the highest level of specificity.
• Ensure the documentation explicitly states "actinomycosis" or "actinomycotic infection" to support this diagnosis.
• Consider querying the provider if the site is unclear, as more specific codes (e.g., 039.0-039.8) offer better data for epidemiological and treatment purposes.