O10-O16Not billable, use a more specific code below
Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
chapter 15: Pregnancy, Childbirth and the Puerperium
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
- Section I.C.15.d Pre-existing hypertension in pregnancy (page 66), covers O10-O16
When an O10 code for hypertensive heart disease or hypertensive chronic kidney disease is assigned, add a secondary code from the appropriate hypertension category to identify the type of heart failure or chronic kidney disease.
Other Chapter 15 topics:
- General Rules for Obstetric Cases (page 63)
- Selection of OB Principal or First-listed Diagnosis (page 64)
- Pre-existing conditions versus conditions due to the pregnancy (page 65)
- Fetal Conditions Affecting the Management of the Mother (page 66)
- HIV Infection in Pregnancy, Childbirth and the Puerperium (page 66)
- Diabetes mellitus in pregnancy (page 66)
- Long term use of insulin and oral hypoglycemics (page 67)
- Gestational (pregnancy induced) diabetes (page 67)
All codes under O10-O16
O10-O16 can't be used on a claim. Pick a billable code below; grey headings group them.
- O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
- O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
- O10.01Pre-existing essential hypertension complicating pregnancy
- O10.011Pre-existing essential hypertension complicating pregnancy, first trimester
- O10.012Pre-existing essential hypertension complicating pregnancy, second trimester
- O10.013Pre-existing essential hypertension complicating pregnancy, third trimester
- O10.019Pre-existing essential hypertension complicating pregnancy, unspecified trimester
- O10.02Pre-existing essential hypertension complicating childbirth
- O10.03Pre-existing essential hypertension complicating the puerperium
- O10.1Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
- O10.11Pre-existing hypertensive heart disease complicating pregnancy
- O10.111Pre-existing hypertensive heart disease complicating pregnancy, first trimester
- O10.112Pre-existing hypertensive heart disease complicating pregnancy, second trimester
- O10.113Pre-existing hypertensive heart disease complicating pregnancy, third trimester
- O10.119Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester
- O10.12Pre-existing hypertensive heart disease complicating childbirth
- O10.13Pre-existing hypertensive heart disease complicating the puerperium
- O10.2Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium
- O10.21Pre-existing hypertensive chronic kidney disease complicating pregnancy
- O10.211Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester
- O10.212Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester
- O10.213Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester
- O10.219Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester
- O10.22Pre-existing hypertensive chronic kidney disease complicating childbirth
- O10.23Pre-existing hypertensive chronic kidney disease complicating the puerperium
- O10.3Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium
- O10.31Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy
- O10.311Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester
- O10.312Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester
- O10.313Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester
- O10.319Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester
- O10.32Pre-existing hypertensive heart and chronic kidney disease complicating childbirth
- O10.33Pre-existing hypertensive heart and chronic kidney disease complicating the puerperium
- O10.4Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
- O10.41Pre-existing secondary hypertension complicating pregnancy
- O10.411Pre-existing secondary hypertension complicating pregnancy, first trimester
- O10.412Pre-existing secondary hypertension complicating pregnancy, second trimester
- O10.413Pre-existing secondary hypertension complicating pregnancy, third trimester
- O10.419Pre-existing secondary hypertension complicating pregnancy, unspecified trimester
- O10.42Pre-existing secondary hypertension complicating childbirth
- O10.43Pre-existing secondary hypertension complicating the puerperium
- O10.9Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
- O10.91Unspecified pre-existing hypertension complicating pregnancy
- O10.911Unspecified pre-existing hypertension complicating pregnancy, first trimester
- O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimester
- O10.913Unspecified pre-existing hypertension complicating pregnancy, third trimester
- O10.919Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
- O10.92Unspecified pre-existing hypertension complicating childbirth
- O10.93Unspecified pre-existing hypertension complicating the puerperium
- O11Pre-existing hypertension with pre-eclampsia
- O11.1Pre-existing hypertension with pre-eclampsia, first trimester
- O11.2Pre-existing hypertension with pre-eclampsia, second trimester
- O11.3Pre-existing hypertension with pre-eclampsia, third trimester
- O11.4Pre-existing hypertension with pre-eclampsia, complicating childbirth
- O11.5Pre-existing hypertension with pre-eclampsia, complicating the puerperium
- O11.9Pre-existing hypertension with pre-eclampsia, unspecified trimester
- O12Gestational [pregnancy-induced] edema and proteinuria without hypertension
- O12.0Gestational edema
- O12.00Gestational edema, unspecified trimester
- O12.01Gestational edema, first trimester
- O12.02Gestational edema, second trimester
- O12.03Gestational edema, third trimester
- O12.04Gestational edema, complicating childbirth
- O12.05Gestational edema, complicating the puerperium
- O12.1Gestational proteinuria
- O12.10Gestational proteinuria, unspecified trimester
- O12.11Gestational proteinuria, first trimester
- O12.12Gestational proteinuria, second trimester
- O12.13Gestational proteinuria, third trimester
- O12.14Gestational proteinuria, complicating childbirth
- O12.15Gestational proteinuria, complicating the puerperium
- O12.2Gestational edema with proteinuria
- O12.20Gestational edema with proteinuria, unspecified trimester
- O12.21Gestational edema with proteinuria, first trimester
- O12.22Gestational edema with proteinuria, second trimester
- O12.23Gestational edema with proteinuria, third trimester
- O12.24Gestational edema with proteinuria, complicating childbirth
- O12.25Gestational edema with proteinuria, complicating the puerperium
- O13Gestational [pregnancy-induced] hypertension without significant proteinuria
- O13.1Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
- O13.2Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
- O13.3Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
- O13.4Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
- O13.5Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
- O13.9Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
- O14Pre-eclampsia
- O14.0Mild to moderate pre-eclampsia
- O14.00Mild to moderate pre-eclampsia, unspecified trimester
- O14.02Mild to moderate pre-eclampsia, second trimester
- O14.03Mild to moderate pre-eclampsia, third trimester
- O14.04Mild to moderate pre-eclampsia, complicating childbirth
- O14.05Mild to moderate pre-eclampsia, complicating the puerperium
- O14.1Severe pre-eclampsia
- O14.10Severe pre-eclampsia, unspecified trimester
- O14.12Severe pre-eclampsia, second trimester
- O14.13Severe pre-eclampsia, third trimester
- O14.14Severe pre-eclampsia complicating childbirth
- O14.15Severe pre-eclampsia, complicating the puerperium
- O14.2HELLP syndrome
- O14.20HELLP syndrome (HELLP), unspecified trimester
- O14.22HELLP syndrome (HELLP), second trimester
- O14.23HELLP syndrome (HELLP), third trimester
- O14.24HELLP syndrome, complicating childbirth
- O14.25HELLP syndrome, complicating the puerperium
- O14.9Unspecified pre-eclampsia
- O14.90Unspecified pre-eclampsia, unspecified trimester
- O14.92Unspecified pre-eclampsia, second trimester
- O14.93Unspecified pre-eclampsia, third trimester
- O14.94Unspecified pre-eclampsia, complicating childbirth
- O14.95Unspecified pre-eclampsia, complicating the puerperium
- O15Eclampsia
- O15.0Eclampsia complicating pregnancy
- O15.00Eclampsia complicating pregnancy, unspecified trimester
- O15.02Eclampsia complicating pregnancy, second trimester
- O15.03Eclampsia complicating pregnancy, third trimester
- O15.1Eclampsia complicating labor
- O15.2Eclampsia complicating the puerperium
- O15.9Eclampsia, unspecified as to time period
- O16Unspecified maternal hypertension
- O16.1Unspecified maternal hypertension, first trimester
- O16.2Unspecified maternal hypertension, second trimester
- O16.3Unspecified maternal hypertension, third trimester
- O16.4Unspecified maternal hypertension, complicating childbirth
- O16.5Unspecified maternal hypertension, complicating the puerperium
- O16.9Unspecified maternal hypertension, unspecified trimester
O10-O16 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
Other codes that refer to O10-O16
Notes on these codes point to O10-O16.
- O99.4 Excludes2: hypertensive disorders (O10-O16)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Health Problems in Pregnancy
A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.
Read more about health problems in pregnancy on MedlinePlus