| MDC 4 Diseases & Disorders of the Respiratory System |
| Chronic Obstructive Pulmonary Disease |
| J411 | Mucopurulent chronic bronchitis |
| J418 | Mixed simple and mucopurulent chronic bronchitis |
| J42 | Unspecified chronic bronchitis |
| J430 | Unilateral pulmonary emphysema [MacLeod's syndrome] |
| J431 | Panlobular emphysema |
| J432 | Centrilobular emphysema |
| J438 | Other emphysema |
| J439 | Emphysema, unspecified |
| J440 | Chronic obstructive pulmonary disease with acute lower respiratory infection |
| J441 | Chronic obstructive pulmonary disease with (acute) exacerbation |
| J449 | Chronic obstructive pulmonary disease, unspecified |
| J470 | Bronchiectasis with acute lower respiratory infection |
| J471 | Bronchiectasis with (acute) exacerbation |
| J479 | Bronchiectasis, uncomplicated |
| J684 | Chronic respiratory conditions due to chemicals, gases, fumes and vapors |
| J688 | Other respiratory conditions due to chemicals, gases, fumes and vapors |
| J689 | Unspecified respiratory condition due to chemicals, gases, fumes and vapors |
| Q334 | Congenital bronchiectasis |