J17 Pneumonia in diseases classified elsewhere

Excludes1: candidial pneumonia (B37.1)
chlamydial pneumonia (J16.0)
gonorrheal pneumonia (A54.84)
histoplasmosis pneumonia (B39.0-B39.2)
measles pneumonia (B05.2)
nocardiosis pneumonia (A43.0)
pneumocystosis (B59)
pneumonia due to Pneumocystis carinii (B59)
pneumonia due to Pneumocystis jirovecii (B59)
pneumonia in actinomycosis (A42.0)
pneumonia in anthrax (A22.1)
pneumonia in ascariasis (B77.81)
pneumonia in aspergillosis (B44.0-B44.1)
pneumonia in coccidioidomycosis (B38.0-B38.2)
pneumonia in cytomegalovirus disease (B25.0)
pneumonia in toxoplasmosis (B58.3)
rubella pneumonia (B06.81)
salmonella pneumonia (A02.22)
spirochetal infection NEC with pneumonia (A69.8)
tularemia pneumonia (A21.2)
typhoid fever with pneumonia (A01.03)
varicella pneumonia (B01.2)
whooping cough with pneumonia (A37 with fifth-character 1)

Code first: underlying disease, such as:
Q fever (A78)
rheumatic fever (I00)
schistosomiasis (B65.0-B65.9)
Code also: , if applicable, any associated condition such as:
abscess (J85.1)
aspiration pneumonia (J69.-)