| F-43-1 | Sharply Defined Cavitary Lesion(s) of the Lung - Thin-walled |
| F-43-2 | Sharply Defined Cavitary Lesion(s) of the Lung - Thick-walled |
| F-44 | Cyst-Like or Cavitary Pulmonary Lesion(s) in an Infant or Child |
| F-45 | Solitary Cavitary Pulmonary Lesion (Cyst, Nodule, or Mass) with a Sharp Outline (See also F-43-1, F-43-2) |
| F-46 | Solitary Cavitary Lesion of the Lung with a Shaggy (Irregular or Spiculated) Outline |
| F-47-S | Predisposing Factors for a Lung Abscess |
| F-48 | Pneumatocele |
| F-49 | Multiple Lucent or Cavitary Lesions of the Lung |
| F-50 | Extensive Pulmonary Opacity with Cavitation (Destructive Pattern) (See also F-46) |
| F-51 | Mass in a Pulmonary Cavity (Meniscus or Bull's-Eye Sign), Mobile or Fixed |