ICD-10-CM Book 2026 Edition

Chapters  /  Chapter 15  /  O10-O16

Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)

O10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
Includes pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
Excludes2 pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)
O10.0 Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
Any condition in I10 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
O10.01 Pre-existing essential hypertension complicating pregnancy
O10.011 Pre-existing essential hypertension complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.012 Pre-existing essential hypertension complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.013 Pre-existing essential hypertension complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.019 Pre-existing essential hypertension complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.02 Pre-existing essential hypertension complicating childbirth
sex Female
age Maternity: [12-55]
O10.03 Pre-existing essential hypertension complicating the puerperium
sex Female
age Maternity: [12-55]
O10.1 Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
Any condition in I11 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
UseAdditionalCode code from I11 to identify the type of hypertensive heart disease
O10.11 Pre-existing hypertensive heart disease complicating pregnancy
O10.111 Pre-existing hypertensive heart disease complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.112 Pre-existing hypertensive heart disease complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.113 Pre-existing hypertensive heart disease complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.119 Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.12 Pre-existing hypertensive heart disease complicating childbirth
sex Female
age Maternity: [12-55]
O10.13 Pre-existing hypertensive heart disease complicating the puerperium
sex Female
age Maternity: [12-55]
O10.2 Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium
Any condition in I12 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
UseAdditionalCode code from I12 to identify the type of hypertensive chronic kidney disease
O10.21 Pre-existing hypertensive chronic kidney disease complicating pregnancy
O10.211 Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.212 Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.213 Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.219 Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.22 Pre-existing hypertensive chronic kidney disease complicating childbirth
sex Female
age Maternity: [12-55]
O10.23 Pre-existing hypertensive chronic kidney disease complicating the puerperium
sex Female
age Maternity: [12-55]
O10.3 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium
Any condition in I13 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
UseAdditionalCode code from I13 to identify the type of hypertensive heart and chronic kidney disease
O10.31 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy
O10.311 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.312 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.313 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.319 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.32 Pre-existing hypertensive heart and chronic kidney disease complicating childbirth
sex Female
age Maternity: [12-55]
O10.33 Pre-existing hypertensive heart and chronic kidney disease complicating the puerperium
sex Female
age Maternity: [12-55]
O10.4 Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
UseAdditionalCode code from I15 to identify the type of secondary hypertension
O10.41 Pre-existing secondary hypertension complicating pregnancy
O10.411 Pre-existing secondary hypertension complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.412 Pre-existing secondary hypertension complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.413 Pre-existing secondary hypertension complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.419 Pre-existing secondary hypertension complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.42 Pre-existing secondary hypertension complicating childbirth
sex Female
age Maternity: [12-55]
O10.43 Pre-existing secondary hypertension complicating the puerperium
sex Female
age Maternity: [12-55]
O10.9 Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
O10.91 Unspecified pre-existing hypertension complicating pregnancy
O10.911 Unspecified pre-existing hypertension complicating pregnancy, first trimester
sex Female
age Maternity: [12-55]
O10.912 Unspecified pre-existing hypertension complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O10.913 Unspecified pre-existing hypertension complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O10.919 Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O10.92 Unspecified pre-existing hypertension complicating childbirth
sex Female
age Maternity: [12-55]
O10.93 Unspecified pre-existing hypertension complicating the puerperium
sex Female
age Maternity: [12-55]
O11 Pre-existing hypertension with pre-eclampsia
Includes conditions in O10 complicated by pre-eclampsia
pre-eclampsia superimposed pre-existing hypertension
UseAdditionalCode code from O10 to identify the type of hypertension
O11.1 Pre-existing hypertension with pre-eclampsia, first trimester
sex Female
age Maternity: [12-55]
O11.2 Pre-existing hypertension with pre-eclampsia, second trimester
sex Female
age Maternity: [12-55]
O11.3 Pre-existing hypertension with pre-eclampsia, third trimester
sex Female
age Maternity: [12-55]
O11.4 Pre-existing hypertension with pre-eclampsia, complicating childbirth
sex Female
age Maternity: [12-55]
O11.5 Pre-existing hypertension with pre-eclampsia, complicating the puerperium
sex Female
age Maternity: [12-55]
O11.9 Pre-existing hypertension with pre-eclampsia, unspecified trimester
sex Female
age Maternity: [12-55]
O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension
O12.0 Gestational edema
O12.00 Gestational edema, unspecified trimester
sex Female
age Maternity: [12-55]
O12.01 Gestational edema, first trimester
sex Female
age Maternity: [12-55]
O12.02 Gestational edema, second trimester
sex Female
age Maternity: [12-55]
O12.03 Gestational edema, third trimester
sex Female
age Maternity: [12-55]
O12.04 Gestational edema, complicating childbirth
sex Female
age Maternity: [12-55]
O12.05 Gestational edema, complicating the puerperium
sex Female
age Maternity: [12-55]
O12.1 Gestational proteinuria
O12.10 Gestational proteinuria, unspecified trimester
sex Female
age Maternity: [12-55]
O12.11 Gestational proteinuria, first trimester
sex Female
age Maternity: [12-55]
O12.12 Gestational proteinuria, second trimester
sex Female
age Maternity: [12-55]
O12.13 Gestational proteinuria, third trimester
sex Female
age Maternity: [12-55]
O12.14 Gestational proteinuria, complicating childbirth
sex Female
age Maternity: [12-55]
O12.15 Gestational proteinuria, complicating the puerperium
sex Female
age Maternity: [12-55]
O12.2 Gestational edema with proteinuria
O12.20 Gestational edema with proteinuria, unspecified trimester
sex Female
age Maternity: [12-55]
O12.21 Gestational edema with proteinuria, first trimester
sex Female
age Maternity: [12-55]
O12.22 Gestational edema with proteinuria, second trimester
sex Female
age Maternity: [12-55]
O12.23 Gestational edema with proteinuria, third trimester
sex Female
age Maternity: [12-55]
O12.24 Gestational edema with proteinuria, complicating childbirth
sex Female
age Maternity: [12-55]
O12.25 Gestational edema with proteinuria, complicating the puerperium
sex Female
age Maternity: [12-55]
O13 Gestational [pregnancy-induced] hypertension without significant proteinuria
Includes gestational hypertension NOS
transient hypertension of pregnancy
O13.1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
sex Female
age Maternity: [12-55]
O13.2 Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
sex Female
age Maternity: [12-55]
O13.3 Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
sex Female
age Maternity: [12-55]
O13.4 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
sex Female
age Maternity: [12-55]
O13.5 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
sex Female
age Maternity: [12-55]
O13.9 Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
sex Female
age Maternity: [12-55]
O14 Pre-eclampsia
Excludes1 pre-existing hypertension with pre-eclampsia (O11)
O14.0 Mild to moderate pre-eclampsia
O14.00 Mild to moderate pre-eclampsia, unspecified trimester
sex Female
age Maternity: [12-55]
O14.02 Mild to moderate pre-eclampsia, second trimester
sex Female
age Maternity: [12-55]
O14.03 Mild to moderate pre-eclampsia, third trimester
sex Female
age Maternity: [12-55]
O14.04 Mild to moderate pre-eclampsia, complicating childbirth
sex Female
age Maternity: [12-55]
O14.05 Mild to moderate pre-eclampsia, complicating the puerperium
sex Female
age Maternity: [12-55]
O14.1 Severe pre-eclampsia
Excludes1 HELLP syndrome (O14.2-)
O14.10 Severe pre-eclampsia, unspecified trimester
sex Female
age Maternity: [12-55]
O14.12 Severe pre-eclampsia, second trimester
sex Female
age Maternity: [12-55]
O14.13 Severe pre-eclampsia, third trimester
sex Female
age Maternity: [12-55]
O14.14 Severe pre-eclampsia complicating childbirth
sex Female
age Maternity: [12-55]
O14.15 Severe pre-eclampsia, complicating the puerperium
sex Female
age Maternity: [12-55]
O14.2 HELLP syndrome
Severe pre-eclampsia with hemolysis, elevated liver enzymes and low platelet count (HELLP)
O14.20 HELLP syndrome (HELLP), unspecified trimester
sex Female
age Maternity: [12-55]
O14.22 HELLP syndrome (HELLP), second trimester
sex Female
age Maternity: [12-55]
O14.23 HELLP syndrome (HELLP), third trimester
sex Female
age Maternity: [12-55]
O14.24 HELLP syndrome, complicating childbirth
sex Female
age Maternity: [12-55]
O14.25 HELLP syndrome, complicating the puerperium
sex Female
age Maternity: [12-55]
O14.9 Unspecified pre-eclampsia
O14.90 Unspecified pre-eclampsia, unspecified trimester
sex Female
age Maternity: [12-55]
O14.92 Unspecified pre-eclampsia, second trimester
sex Female
age Maternity: [12-55]
O14.93 Unspecified pre-eclampsia, third trimester
sex Female
age Maternity: [12-55]
O14.94 Unspecified pre-eclampsia, complicating childbirth
sex Female
age Maternity: [12-55]
O14.95 Unspecified pre-eclampsia, complicating the puerperium
sex Female
age Maternity: [12-55]
O15 Eclampsia
Includes convulsions following conditions in O10-O14 and O16
O15.0 Eclampsia complicating pregnancy
O15.00 Eclampsia complicating pregnancy, unspecified trimester
sex Female
age Maternity: [12-55]
O15.02 Eclampsia complicating pregnancy, second trimester
sex Female
age Maternity: [12-55]
O15.03 Eclampsia complicating pregnancy, third trimester
sex Female
age Maternity: [12-55]
O15.1 Eclampsia complicating labor
sex Female
age Maternity: [12-55]
O15.2 Eclampsia complicating the puerperium
sex Female
age Maternity: [12-55]
O15.9 Eclampsia, unspecified as to time period
Eclampsia NOS
sex Female
age Maternity: [12-55]
O16 Unspecified maternal hypertension
O16.1 Unspecified maternal hypertension, first trimester
sex Female
age Maternity: [12-55]
O16.2 Unspecified maternal hypertension, second trimester
sex Female
age Maternity: [12-55]
O16.3 Unspecified maternal hypertension, third trimester
sex Female
age Maternity: [12-55]
O16.4 Unspecified maternal hypertension, complicating childbirth
sex Female
age Maternity: [12-55]
O16.5 Unspecified maternal hypertension, complicating the puerperium
sex Female
age Maternity: [12-55]
O16.9 Unspecified maternal hypertension, unspecified trimester
sex Female
age Maternity: [12-55]