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. Author manuscript; available in PMC: 2023 Apr 1.
Published in final edited form as: J Rheumatol. 2021 Oct 15;49(4):358–364. doi: 10.3899/jrheum.210580

Table 1.

Respiratory tract exposures and their corresponding International Classification of Disease (ICD) codes

Respiratory tract diseases ICD-10 ICD-9
All respiratory tract diseases J00-J99 460–519
Acute upper respiratory tract diseases J00-J06, J36 460–465, 475
 Acute sinusitis J01 461
 Acute pharyngitis or nasopharyngitis J02, J00 462, 460
Chronic upper respiratory tract diseases J30-J35, J37-J39 470–474, 476–478
 Chronic rhinitis and pharyngitis J31 472
 Chronic sinusitis J32 473
Acute lower respiratory tract diseases J09-J18, J20-J22, J69 466, 480–488, 507
 Pneumonia J12-J18 480–486
Chronic lower respiratory tract diseases J40-J47, J60-J64, J66–67, J82, J84 490–495, 500–505, 515–516, 518.3
 Asthma J45-J46 493
 Chronic obstructive pulmonary disease J40-J44 490, 491.0, 491.1, 491.2, 491.8, 492, 496