. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: Am J Obstet Gynecol. 2014 Sep 28;212(3):380.e1–380.e9. doi: 10.1016/j.ajog.2014.09.026

Table 1.

ICD-9 codes for maternal complications

Outcome	ICD-9 codes
Chorioamnionitis	658.4, 658.40, 658.41, 658.43, 762.7
Endometritis	670, 670.00, 670.02, 670.04, 670.1, 670.10, 670.12, 670.14, 672, 672.00, 672.02, 672.04
Postpartum hemorrhage	285.1, 666, 666.0, 666.00, 666.02, 666.04, 666.1, 666.10, 666.12, 666.14, 666.2, 666.20, 666.22, 666.24, 666.3, 666.30, 666.32, 666.34
Transfusion of blood products	99.00, 99.01, 99.02, 99.03, 99.04, 99.05, 99.06, 99.07, 99.08, 99.09
Severe perineal lacerations (3^rd or 4^th degree)	664.2, 664.20, 664.21, 664.24, 664.3, 664.30, 664.31, 664.34, 664.60, 664.61, 664.64
Wound infection	674.3, 674.30, 674.32, 674.34