Table 1 Definitions of hypertensive disorders of pregnancy
Diagnosis | Definition |
|---|---|
Chronic hypertension (A) | Having insurance claims for diagnosis of (1) hypertension (ICD-10: I10-I15) before delivery, or (2) chronic maternal hypertension (ICD-10: O10) or preeclampsia superimposed on chronic hypertension (ICD-10: O11) before or within 12 weeks after delivery |
Pregnancy-induced hypertension (B) | Not meeting criteria for chronic hypertension; AND Having insurance claims for diagnosis of gestational hypertension (ICD-10: O13) or preeclampsia/eclampsia (ICD-10: O14, O15) within 40 weeks before or 12 weeks after delivery |
Unspecified hypertension (C) | Not meeting criteria for chronic or pregnancy-induced hypertension; AND Having insurance claims for diagnosis of unspecified maternal hypertension (ICD-10: O16) within 40 weeks before or 12 weeks after delivery |
Preeclampsia/Eclampsia | Having insurance claims for diagnosis of preeclampsia/eclampsia (ICD-10: O14, O15) or preeclampsia superimposed on chronic hypertension (ICD-10: O11) within 40 weeks before or 12 weeks after delivery |
Hypertensive disorders of pregnancy | A or B or C |