In simple words: This condition refers to the symptoms of late-stage syphilis that affect the respiratory system, excluding the lungs and main airways. It is a complication of untreated syphilis, a sexually transmitted infection.

This code represents symptomatic late syphilis affecting respiratory organs other than the lung and bronchus (which are coded separately). It signifies a manifestation of untreated syphilis in the later stages of the disease, impacting parts of the respiratory system beyond the lungs and main airways.

Example 1: A patient presents with persistent cough, shortness of breath, and chest pain. Blood tests and clinical findings reveal late-stage syphilis affecting the trachea., An individual with a history of untreated syphilis experiences hoarseness and difficulty swallowing. Examination reveals syphilitic lesions in the larynx., A patient exhibits symptoms of respiratory distress and imaging reveals syphilitic involvement of the pleura.

Documentation should include evidence of syphilis infection (e.g., positive serological tests), specific respiratory symptoms, and diagnostic findings confirming the involvement of respiratory organs other than the lungs and bronchus. Imaging results, if performed, should also be included.

** This code should not be used for conditions like influenza or other acute respiratory infections. Use codes J00-J22 for such cases. For infectious or parasitic diseases complicating pregnancy, use code range O98.-.