. Author manuscript; available in PMC: 2015 Feb 1.

Published in final edited form as: J Infect. 2013 Oct 15;68(2):156–164. doi: 10.1016/j.jinf.2013.10.005

Table 1.

International Classification of Diseases, Ninth Revision Clinical Modification (ICD-9-CM) codes included in the case definitions for pneumonia ED visit and fracture ED visit.

Category	ICD-9-CM Codes
Pneumonia	480.xx–486.xx; 487.0
Respiratory failure	518.81; 518.83; 518.84
Shock	785.50; 785.51; 785.52; 785.59
Septicemia	003.1; 022.3; 036.2; 038.x; 054.5; 790.7; 995.91; 995.92
Signs and symptoms consistent with pneumonia	511.xx; 519.11; 780.3x; 780.6x; 780.97; 786.05; 786.06; 786.07; 786.2; 786.3x; 786.4; 786.5x; 786.7; 799.02; 799.1
Another acute respiratory Infection	381.0x; 382.0x; 382.9; 383.0x; 460.x–466.x; 487.x; 510.0; 510.9; 513.0
Acute exacerbation of a chronic pulmonary disease	491.21; 491.22; 493.01; 493.02; 493.11; 493.12; 493.21; 493.22; 493.91; 493.92; 494.1
Fractures	800.xx–829.xx