ICD-9 Code 642.72

Pre-eclampsia or eclampsia superimposed on pre-existing hypertension, delivered, with mention of postpartum complication

Not Valid for Submission

642.72 is a legacy non-billable code used to specify a medical diagnosis of pre-eclampsia or eclampsia superimposed on pre-existing hypertension, delivered, with mention of postpartum complication. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 642.72
Short Description:Tox w old hyp-del w p/p
Long Description:Pre-eclampsia or eclampsia superimposed on pre-existing hypertension, delivered, with mention of postpartum complication

Convert 642.72 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • O15.2 - Eclampsia complicating the puerperium

Code Classification

  • Complications of pregnancy, childbirth, and the puerperium (630–679)
    • Complications mainly related to pregnancy (640-649)
      • 642 Hypertension complicating pregnancy, childbirth, and the puerperium

Information for Medical Professionals

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-9 Code Edits are applicable to this code:

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 unknown.

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.

What are the treatments for preeclampsia?

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.


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Postpartum Care

Taking home a new baby is one of the happiest times in a woman's life. But it also presents both physical and emotional challenges. :

  • Get as much rest as possible. You may find that all you can do is eat, sleep, and care for your baby. And that is perfectly okay. You will have spotting or bleeding, like a menstrual period, off and on for up to six weeks.
  • You might also have swelling in your legs and feet, feel constipated, have menstrual-like cramping. Even if you are not breastfeeding, you can have milk leaking from your nipples, and your breasts might feel full, tender, or uncomfortable.
  • Follow your doctor's instructions on how much activity, like climbing stairs or walking, you can do for the next few weeks.
  • Doctors usually recommend that you abstain from sexual intercourse for four to six weeks after birth.

In addition to physical changes, you may feel sad or have the "baby blues." If you are extremely sad or are unable to care for yourself or your baby, you might have a serious condition called postpartum depression.

Dept. of Health and Human Services Office on Women's Health


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ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.