Table 4. Primary diagnoses among hospitalizations with bronchiectasis as any diagnosis, classified by putative infectious and non-infectious complications as well as diagnoses commonly associated with bronchiectasis.

ICD-10	Primary diagnosis	Frequency	Percentage
J47	Bronchiectasis	12,251	19.8
Putative infectious and non-infectious bronchiectasis-associated complications
J09–J18	Influenza and pneumonia	7,174	11.6
J20–J22, J40–J42	Bronchitis and bronchiolitis	2,410	3.9
J96	Respiratory failure	1,491	2.4
R04	Hemoptysis	547	0.9
I27	Pulmonary heart disease	281	0.5
Diagnoses commonly associated with bronchiectasis
J43, J44	COPD and emphysema	12,240	19.8
E84	Cystic fibrosis	4,456	7.2
J84	Interstitial lung disease	1,852	3.0
C34	Lung cancer	1,304	2.1
J45–J46	Asthma	823	1.3
D38	Airway or chest neoplasm of uncertain or unknown behavior	516	0.8
D80–D84	Primary immunodeficiencies	478	0.8
B44	Aspergillosis	472	0.8
M30–M36	Systemic connective tissue diseases	335	0.5
A31	Nontuberculous mycobacteria	252	0.4
A15–A19	Tuberculosis	230	0.4
D86	Sarcoidosis	235	0.4
M05–M06	Rheumatoid arthritis	223	0.4
Q30–Q34	Congenital malformations of the respiratory systema	130	0.2
J32	Chronic sinusitis	112	0.2
J67	Hypersensitivity pneumonitis	125	0.2
J69	Aspiration pneumonia	112	0.2
K50–K52	Inflammatory bowel diseases	110	0.2
	Other primary diagnosis	13,646	22.1
Total		61,805	100

^aIncluding primary ciliary dyskinesia. COPD: chronic obstructive pulmonary disease; ICD-10: International Classification of Diseases,10th revision.