Pulmonary actinomycosis

This code represents a chronic bacterial infection of the lungs caused by Actinomyces species, typically A. israelii. It manifests as a slowly progressive, suppurative disease characterized by abscess formation, tissue destruction, and often sinus tract development.

Use this code when documentation confirms a diagnosis of actinomycosis specifically affecting the pulmonary system. This diagnosis is often supported by microbiological culture identifying Actinomyces from respiratory specimens or characteristic histopathological findings from lung biopsy.

• Ensure documentation specifies "pulmonary" involvement; other sites of actinomycosis have different codes.
• Look for associated conditions like empyema or abscess, which may require additional coding.
• Confirm the causative organism if possible, though not required for this specific code.