Appendix 2.

Maternal Conditions with the Potential to Cause Cardiac Arrest

	ICD-9 CM Definition
Postpartum hemorrhage	665.2x, 665.3x, 666.x
Antepartum hemorrhage	641.1x–641.9x, 665.0x, 665.1x
Heart failure	415.0x, 425.x, 428.x, 429.83, 674.5x
Amniotic fluid embolism	673.1x
Sepsis	038.x, 670.x, 995.91, 995.92
Severe anesthesia complications	668.0–668.2x, 995.86
Aspiration pneumonitis	507.0, 668.0x, 997.3
Venous thromboembolism	415.1x, 673.2x
Eclampsia	642.6x
Puerperal cerebrovascular disorders	325, 346.6x, 430.x–432.x, 433.01, 433.11, 433.21, 433.31, 433.81, 433.91, 434.01, 434.11, 434.91, 436.x, 437.1, 437.2, 437.6, 671.5x, 674.0x, 997.02
Trauma	800.x–904.x
Pulmonary edema	428.1x, 518.4x
Acute myocardial infarction	410.x, 429.5x–429.7x
Magnesium toxicity	275.2
Status asthmaticus	493.01, 493.11, 493.21, 493.91
Anaphylaxis	995.0x, 999.4x
Aortic dissection or rupture	441.0x–441.6x
Local anesthetic toxicity	968.5x

ICD-9 CM = International Classification of Diseases, Ninth Revision, Clinical Modification.