Researchers can apply criteria for patient demographics, encounter information, ICD-9-CM and ICD-10-CM diagnoses, ICD-9-CM/ICD-10-CM/CPT/HCPCS procedure codes, vitals, laboratory results, discharge disposition, and medications. To protect patient information, i2b2 does not report frequencies <10;...
(ICD/CPT), which does not always accurately capture the complete clinical picture for a patient’s case. There is also limited information related to patient clinical context, such as the etiology of cardiac arrest and cardiac rhythm upon the time of arrest. Therefore, a subgroup analysis based...