We identified physicians who provided direct acute care in the ED or inpatient setting for patients with suspected or confirmed COVID-19 using physician billing location and diagnostic codes (DX COVID). Residents and fellows do not submit billing claims and were excluded from this analysis. We ...
A single surgery could have multiple procedure codes and add-on codes billed. If multiple procedures were claimed for the same patient on the same date, the claim resulting in the highest reimbursement was considered the primary procedure; other procedures were considered secondary. We calculated ...
The total number of vaccine doses for all included cases and controls from April 1, 1992 to March 31, 2015 was 33,716 using immunization billing codes (Supplementary Table S1). The majority, 96%, of immunization codes were G538 (“immunization with visit”) or G359 (“immunization only”...
The specific details of how cases of SCI were identified including the exclusion criteria have been described previously as well as in Figure 1.8,9,16 ICD-10 Codes from Rick Hansen Foundation between FY 2003-FY 2006 (n=1,017) Invalid value for gender (n=3) <18 years of age at time ...
Billing codes also did not capture other aspects of care, such as email communication with patients or care provided by nonphysician clinicians. We examined a 9-month period of the pandemic, but study findings may not reflect evolving practice patterns. Additionally, the administrative data we ...