Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists. Page 1 of 6
Appendix 1. List of International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) Diagnosis and Procedure Codes for Failed Induction
ICD-10-CM Code
ICD-10-CM Description Failed induction
diagnosis code
O61.0 Failed medical induction of labor O61.1 Failed instrumental induction of labor O61.8 Other failed induction of labor O61.9 Failed induction of labor, unspecified Induction or
cervical ripening procedure codes
3E033VJ Introduction of Other Hormone into Peripheral Vein, Percutaneous Approach 0U7C7DZ Dilation of Cervix with Intraluminal Device, Via Natural or Artificial Opening 0U7C7ZZ Dilation of Cervix, Via Natural or Artificial Opening
3E0DXGC Introduction of Other Therapeutic Substance into Mouth and Pharynx, External Approach 3E0P7GC Introduction of Other Therapeutic Substance into Female Reproductive, Via Natural or Artificial
Opening
Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists.
Page 2 of 6
Appendix 2. List of International Classification of Diseases, Tenth Revision, Clinical Modification (ICD- 10-CM) Diagnosis Codes for Maternal Comorbidities
Maternal Comorbidities
ICD-10-CM
Diagnosis Code ICD-10-CM Description
preeclampsia O11.X Pre-existing hypertension with pre-eclampsia
O13.X
Gestational [pregnancy-induced] hypertension without significant proteinuria
O14.X Pre-eclampsia
O15.X Eclampsia
Chronic
Hypertension O10.X
Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
O11.X Pre-existing hypertension with pre-eclampsia
O16.X Unspecified maternal hypertension
I11.X Hypertensive heart disease
I12.X Hypertensive chronic kidney disease
I13.X Hypertensive heart and chronic kidney disease
I15.X Secondary hypertension
I10 Essential (primary) hypertension
I16.X Hypertensive crisis
Diabetes E10.X Type 1 diabetes mellitus
E11.X Type 2 diabetes mellitus
E13.X Other specified diabetes mellitus
O24.0X
Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
O24.1X
Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium
O24.3X
Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium
O24.8X
Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium
O24.9X Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium Gestational
Diabetes O24.4X Gestational diabetes mellitus
O99.81X Abnormal glucose complicating pregnancy, childbirth and the puerperium Other
Comorbidities O36.5190
Maternal care for known or suspected placental insufficiency, unspecified trimester, not applicable or unspecified
O36.5990
Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecified
O40.1XX0 Polyhydramnios, first trimester, not applicable or unspecified O40.2XX0 Polyhydramnios, second trimester, not applicable or unspecified O40.3XX0 Polyhydramnios, third trimester, not applicable or unspecified O41.01X0 Oligohydramnios, first trimester, not applicable or unspecified O41.02X0 Oligohydramnios, second trimester, not applicable or unspecified O41.03X0 Oligohydramnios, third trimester, not applicable or unspecified O12.14 Gestational proteinuria, complicating childbirth
Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists.
Page 3 of 6 O26.831 Pregnancy related renal disease, first trimester
O26.832 Pregnancy related renal disease, second trimester O26.833 Pregnancy related renal disease, third trimester O12.15 Gestational proteinuria, complicating the puerperium O26.831 Pregnancy related renal disease, first trimester O26.832 Pregnancy related renal disease, second trimester O26.833 Pregnancy related renal disease, third trimester
O26.611 Liver and biliary tract disorders in pregnancy, first trimester O26.612 Liver and biliary tract disorders in pregnancy, second trimester O26.613 Liver and biliary tract disorders in pregnancy, third trimester O26.62 Liver and biliary tract disorders in childbirth
O99.321 Drug use complicating pregnancy, first trimester O99.322 Drug use complicating pregnancy, second trimester O99.323 Drug use complicating pregnancy, third trimester
O99.324 Drug use complicating childbirth
O99.325 Drug use complicating the puerperium
O99.341 Other mental disorders complicating pregnancy, first trimester O99.342 Other mental disorders complicating pregnancy, second trimester O99.343 Other mental disorders complicating pregnancy, third trimester O99.344 Other mental disorders complicating childbirth
O90.6 Postpartum mood disturbance
O99.345 Other mental disorders complicating the puerperium
O99.411 Diseases of the circulatory system complicating pregnancy, first trimester O99.412 Diseases of the circulatory system complicating pregnancy, second trimester O99.413 Diseases of the circulatory system complicating pregnancy, third trimester O99.42 Diseases of the circulatory system complicating childbirth
O99.43 Diseases of the circulatory system complicating the puerperium
O99.411 Diseases of the circulatory system complicating pregnancy, first trimester O99.412 Diseases of the circulatory system complicating pregnancy, second trimester O99.413 Diseases of the circulatory system complicating pregnancy, third trimester O99.42 Diseases of the circulatory system complicating childbirth
O99.43 Diseases of the circulatory system complicating the puerperium
O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones
Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists.
Page 4 of 6
Appendix 3. Box and whisker plot for NTSV cesarean rates following labor induction (N= number of hospitals), by a) Geographic Location and b) Neonatal Intensive Care Level (using American Academy of Pediatrics criteria). Births from all 238 California hospitals during 2016-2017 are included. The box indicates the 25th to 50th and 50th to 75th percentiles while the whiskers indicate the full range of values.
The diamonds indicate the mean value.
Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists.
Page 5 of 6
Appendix 4. Box and whisker plot for NTSV cesarean delivery rates after labor induction (N= number of hospitals) by hospital average annual delivery volume. Births from all 238 California hospitals during 2016–2017 are included. The box indicates the 25th to 50th and 50th to 75th percentiles while the whiskers indicate the full range of values. The diamonds indicate the mean value.
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0
3,000 or more 1,000 - 2,999 Less than 1,000
Cesarean rate following labor induction (%)
Main EK, Chang SC, Cheng YW, Rosenstein M, Lagrew DC. Hospital-level variation in cesarean delivery rates after induction of labor in nulliparous women. Obstet Gynecol 2020;136.
The authors provided this information as a supplement to their article.
©2020 American College of Obstetricians and Gynecologists.
Page 6 of 6