ICD-10-CM Code O11

Pre-existing hypertension with pre-eclampsia

Version 2020 Non-Billable Code

Not Valid for Submission

O11 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of pre-existing hypertension with pre-eclampsia. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:	O11
Short Description:	Pre-existing hypertension with pre-eclampsia
Long Description:	Pre-existing hypertension with pre-eclampsia

Consider the following ICD-10 codes with a higher level of specificity:

O11.1 - ... first trimester
O11.2 - ... second trimester
O11.3 - ... third trimester
O11.4 - ... complicating childbirth
O11.5 - ... complicating the puerperium
O11.9 - ... unspecified trimester

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code O11:

Includes

conditions in Ol0 complicated by pre-eclampsia
pre-eclampsia superimposed pre-existing hypertension

Use Additional Code

code from O10

Code Classification

Pregnancy, childbirth and the puerperium (O00–O99)
- Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
  - Pre-existing hypertension with pre-eclampsia (O11)

Code History

FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
(First year ICD-10-CM implemented into the HIPAA code set)
FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

High Blood Pressure in Pregnancy

What is high blood pressure in pregnancy?

Blood pressure is the force of your blood pushing against the walls of your arteries as your heart pumps blood. High blood pressure, or hypertension, is when this force against your artery walls is too high. There are different types of high blood pressure in pregnancy:

Gestational hypertension is high blood pressure that you develop while you are pregnant. It starts after you are 20 weeks pregnant. You usually don't have any other symptoms. In many cases, it does not harm you or your baby, and it goes away within 12 weeks after childbirth. But it does raise your risk of high blood pressure in the future. It sometimes can be severe, which may lead to low birth weight or preterm birth. Some women with gestational hypertension do go on to develop preeclampsia.
Chronic hypertension is high blood pressure that started before the 20th week of pregnancy or before you became pregnant. Some women may have had it long before becoming pregnant, but didn't know it until they got their blood pressure checked at their prenatal visit. Sometimes chronic hypertension can also lead to preeclampsia.
Preeclampsia is a sudden increase in blood pressure after the 20th week of pregnancy. It usually happens in the last trimester. In rare cases, symptoms may not start until after delivery. This is called postpartum preeclampsia. Preeclampsia also includes signs of damage to some of your organs, such as your liver or kidney. The signs may include protein in the urine and very high blood pressure. Preeclampsia can be serious or even life-threatening for both you and your baby.

What causes preeclampsia?

The cause of preeclampsia is not known.

Who is at risk for preeclampsia?

You are at higher risk of preeclampsia if you

Had chronic high blood pressure or chronic kidney disease before pregnancy
Had high blood pressure or preeclampsia in a previous pregnancy
Have obesity
Are over age 40
Are pregnant with more than one baby
Are African American
Have a family history of preeclampsia
Have certain health conditions, such as diabetes, lupus, or thrombophilia (a disorder which raises your risk of blood clots)
Used in vitro fertilization, egg donation, or donor insemination

What problems can preeclampsia cause?

Preeclampsia can cause

Placental abruption, where the placenta separates from the uterus
Poor fetal growth, caused by a lack of nutrients and oxygen
Preterm birth
A low birth weight baby
Stillbirth
Damage to your kidneys, liver, brain, and other organ and blood systems
A higher risk of heart disease for you
Eclampsia, which happens when preeclampsia is severe enough to affect brain function, causing seizures or coma
HELLP syndrome, which happens when a woman with preeclampsia or eclampsia has damage to the liver and blood cells. It is rare, but very serious.

What are the symptoms of preeclampsia?

Possible symptoms of preeclampsia include

High blood pressure
Too much protein in your urine (called proteinuria)
Swelling in your face and hands. Your feet may also swell, but many women have swollen feet during pregnancy. So swollen feet by themselves may not be a sign of a problem.
Headache that does not go away
Vision problems, including blurred vision or seeing spots
Pain in your upper right abdomen
Trouble breathing

Eclampsia can also cause seizures, nausea and/or vomiting, and low urine output. If you go on to develop HELLP syndrome, you may also have bleeding or bruising easily, extreme fatigue, and liver failure.

How is preeclampsia diagnosed?

Your health care provider will check your blood pressure and urine at each prenatal visit. If your blood pressure reading is high (140/90 or higher), especially after the 20th week of pregnancy, your provider will likely want to run some tests. They may include blood tests other lab tests to look for extra protein in the urine as well as other symptoms.

How is preeclampsia treated?

Delivering the baby can often cure preeclampsia. When making a decision about treatment, your provider take into account several factors. They include how severe it is, how many weeks pregnant you are, and what the potential risks to you and your baby are:

If you are more than 37 weeks pregnant, your provider will likely want to deliver the baby.
If you are less than 37 weeks pregnant, your health care provider will closely monitor you and your baby. This includes blood and urine tests for you. Monitoring for the baby often involves ultrasound, heart rate monitoring, and checking on the baby's growth. You may need to take medicines, to control your blood pressure and to prevent seizures. Some women also get steroid injections, to help the baby's lungs mature faster. If the preeclampsia is severe, you provider may want you to deliver the baby early.

The symptoms usually go away within 6 weeks of delivery. In rare cases, symptoms may not go away, or they may not start until after delivery (postpartum preeclampsia). This can be very serious, and it needs to be treated right away.

[Learn More]

Preeclampsia Preeclampsia is a complication of pregnancy in which affected women develop high blood pressure (hypertension); they can also have abnormally high levels of protein in their urine (proteinuria). This condition usually occurs in the last few months of pregnancy and often requires early delivery of the infant. However, this condition can also appear shortly after giving birth (postpartum preeclampsia).Many women with mild preeclampsia do not feel ill, and the condition is often first detected through blood pressure and urine testing in their doctor's office. In addition to hypertension and proteinuria, signs and symptoms of preeclampsia can include excessive swelling (edema) of the face or hands and a weight gain of more than 3 to 5 pounds in a week due to fluid retention. Affected women may also experience headaches, dizziness, irritability, shortness of breath, a decrease in urination, upper abdominal pain, and nausea or vomiting. Vision changes may develop, including flashing lights or spots, increased sensitivity to light (photophobia), blurry vision, or temporary blindness.In many cases, symptoms of preeclampsia go away within a few days after the baby is born. In severe cases, however, preeclampsia can damage the mother's organs, such as the heart, liver, and kidneys, and can lead to life-threatening complications. Extremely high blood pressure in the mother can cause bleeding in the brain (hemorrhagic stroke). The effects of high blood pressure on the brain (hypertensive encephalopathy) may also result in seizures. If seizures occur, the condition is considered to have worsened to eclampsia, which can result in coma. About 1 in 200 women with untreated preeclampsia develop eclampsia. Eclampsia can also develop without any obvious signs of preeclampsia.Between 10 and 20 percent of women with severe preeclampsia develop another potentially life-threatening complication called HELLP syndrome. HELLP stands for hemolysis (premature red blood cell breakdown), elevated liver enzyme levels, and low platelets (cell fragments involved in blood clotting), which are the key features of this condition.Severe preeclampsia can also affect the fetus, with impairment of blood and oxygen flow leading to growth problems or stillbirth. Infants delivered early due to preeclampsia may have complications associated with prematurity, such as breathing problems caused by underdeveloped lungs.Women who have had preeclampsia have approximately twice the lifetime risk of heart disease and stroke than do women in the general population. Researchers suggest that preeclampsia, heart disease, and stroke may share common risk factors. Women who have health conditions such as obesity, hypertension, heart disease, diabetes, or kidney disease before they become pregnant have an increased risk of developing preeclampsia. Preeclampsia is most likely to occur in a woman's first pregnancy, although it can occur in subsequent pregnancies, particularly in women with other health conditions.
[Learn More]

Previous Code: O10.93

Related Codes

Next Code: O11.1