Any patient that have the following ICD codes for pre-eclampsia will be classified as a 1 for yes. If none of the codes below are present, the patient will be classified as a 0. If there are no ICD codes, then the data will be classified as missing and reported as -999.
Data source:
aims_billingdiagnoses
Using the DiagnosisCleaned phenotype, this collation looks as the following timeframe:
Prior time frame – 90 days (before the operation date)
Post time frame – extends 7 days after service end
ICD-9-CM:
410, 410.X, 411, 411.X, 412, 412.X 414.2, 414.8, 414.9, V45.81, V45.82
ICD-10-CM:
I21, I21.X, I25, I25.X, I25.10, I25.110, I25.111, I25.118, I25.119, I25.2, I25.5, I25.6. I25.700, I25.701, I25.708, I25.709, I25.710, I25.711, I25.718, I25.719, I25.720, I25.721, I25.728, I25.729, I25.730, I25.731, I25.738, I25.739, I25.750, I25.751, I25.758, I25.759, I25.760, I25.761, I25.768, I25.769, I25.790, I25.791, I25.798, I25.799, I25.810, I25.811, I25.812, I25.82, I25.83, I25.84, I25.89, I25.9, Z95.1, Z95.5, Z98.61
KEY:
I25 – Chronic Ischemic Heart Disease
Z95.1 - Presence of aortocoronary bypass graft
Z95.5 - Presence of coronary angioplasty implant and graft
Z98.61 – Coronary Angioplasty Status (primarily coded as presence of a stent, CAD)
412 – Old MI
414.2 – Chronic total occlusion of coronary artery
414.8 – Other specified forms of chronic ischemic heart disease
414.9 – Chronic ischemic heart disease, unspecified
V45.81, V45.82 - Coronary Angioplasty Status (primarily coded as presence of a stent, CAD)