Version 2024

2024 ICD-10-CM Diagnosis Code O15

Eclampsia

ICD-10-CM Code:
O15
ICD-10 Code for:
Eclampsia
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Pregnancy, childbirth and the puerperium
    (O00-O9A)
    • Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
      (O10-O16)
      • Eclampsia
        (O15)

O15 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of eclampsia. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Eclampsia

Non-specific codes like O15 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for eclampsia:

  • O15.0 for Eclampsia complicating pregnancy - NON-BILLABLE CODE

  • Use O15.00 for Eclampsia complicating pregnancy, unspecified trimester - BILLABLE CODE

  • Use O15.02 for Eclampsia complicating pregnancy, second trimester - BILLABLE CODE

  • Use O15.03 for Eclampsia complicating pregnancy, third trimester - BILLABLE CODE

  • Use O15.1 for Eclampsia complicating labor - BILLABLE CODE

  • Use O15.2 for Eclampsia complicating the puerperium - BILLABLE CODE

  • Use O15.9 for Eclampsia, unspecified as to time period - BILLABLE CODE

Clinical Information

  • Eclampsia

    onset of hyperreflexia; seizures; or coma in a previously diagnosed pre-eclamptic patient (pre-eclampsia).
  • Pre-Eclampsia

    a complication of pregnancy, characterized by a complex of symptoms including maternal hypertension and proteinuria with or without pathological edema. symptoms may range between mild and severe. pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease.
  • Chronic Maternal Hypertension with Superimposed Preeclampsia|Pre-existing hypertension with pre-eclampsia, unspecified trimester

    chronic hypertension in association with preeclampsia.
  • Eclampsia

    a potentially life-threatening pregnancy-related disorder characterized by tonic-clonic seizures in association with hypertension after the twentieth week of gestation and up to six weeks postpartum and in the absence of other potential causes of seizures.
  • GAIA Insufficient Evidence for Diagnosis of Preeclampsia with Severe Features|Global Alignment of Immunization safety Assessment in pregnancy Insufficient Evidence for Diagnosis of Preeclampsia with Severe Features|Insufficient Evidence for Preeclampsia with Severe Features

    gaia insufficient evidence for diagnosis of preeclampsia with severe features is a pregnancy with a gestational age greater than or equal to 20 weeks and the inability to measure blood pressure.
  • GAIA Insufficient Evidence for Diagnosis of Preeclampsia|Global Alignment of Immunization safety Assessment in pregnancy Insufficient Evidence for Diagnosis of Preeclampsia|Insufficient Evidence for Preeclampsia

    gaia insufficient evidence for diagnosis of preeclampsia is defined as a pregnancy with gestational age greater than or equal to 20 weeks and either a) the inability to measure blood pressure or b) the inability to evaluate for proteinuria.
  • GAIA Level 1 Preeclampsia with Severe Features|Global Alignment of Immunization safety Assessment in pregnancy Level 1 Preeclampsia with Severe Features|Level 1 Preeclampsia with Severe Features

    gaia level 1 preeclampsia with severe features is defined by three criteria: first, the gestational age of the pregnancy must be greater than or equal to 20 weeks; second, a diagnosis of new onset maternal hypertension (systolic blood pressure greater than or equal to 140mmhg and/or diastolic blood pressure greater than or equal to 90mmhg) that is sustained on two measurements over a minimum of one hour); third, the presence of one or more of the following requirements: a) systolic blood pressure greater than or equal to 160mmhg and/or diastolic blood pressure greater than or equal to 110mmhg, which is confirmed after only minutes; b) development of severe, persistent headache; c) development of visual changes; d) eclampsia; e) new onset thrombocytopenia (platelets less than 100,000/microliter); f) new onset unremitting epigastric pain; g) ast and alt elevated to twice the upper limit of normal; h) evidence of liver capsular hematoma or liver rupture (diagnosed on clinical exam or with imaging); i) worsening renal function, as evidenced by serum creatinine level greater than 1.1 mg/dl, a doubling of the serum creatinine (absent other renal disease), or oliguria (less than 500 cc/24 hours); j) pulmonary edema (confirmed on either imaging with chest x-ray or on clinical exam).
  • GAIA Level 1 Preeclampsia|Global Alignment of Immunization safety Assessment in pregnancy Level 1 Preeclampsia|Level 1 Preeclampsia

    gaia level 1 preeclampsia is defined by three criteria: first, the gestational age of the pregnancy must be greater than or equal to 20 weeks; second, a diagnosis of new onset maternal hypertension (systolic blood pressure greater than or equal to 140mmhg and/or diastolic blood pressure greater than or equal to 90mmhg) that is sustained on two measurements over a minimum of one hour; third, a diagnosis of new onset proteinuria that is a level one diagnostic certainty (proteinuria diagnosed with greater than or equal to 300 mg of protein during 24 hour urine collection or greater than or equal to 0.3 for spot protein:creatinine ratio.)
  • GAIA Level 2 Preeclampsia with Severe Features|Global Alignment of Immunization safety Assessment in pregnancy Level 2 Preeclampsia with Severe Features|Level 2 Preeclampsia with Severe Features

    gaia level 2 preeclampsia with severe features is defined by three criteria: first, the gestational age of the pregnancy must be greater than or equal to 20 weeks; second, a diagnosis of new onset maternal hypertension (systolic blood pressure greater than or equal to 140mmhg and/or diastolic blood pressure greater than or equal to 90mmhg) that is sustained on two measurements for a minimum of one hour; third, the diagnosis of new onset nausea and vomiting.
  • GAIA Level 2 Preeclampsia|Global Alignment of Immunization safety Assessment in pregnancy Level 2 Preeclampsia|Level 2 Preeclampsia

    gaia level 2 preeclampsia is defined by three criteria: first, the gestational age of the pregnancy must be greater than or equal to 20 weeks; second, a diagnosis of new onset maternal hypertension (systolic blood pressure greater than or equal to 140mmhg and/or diastolic blood pressure greater than or equal to 90mmhg) that is sustained on two measurements for a minimum of one hour; third, a diagnosis of new onset proteinuria that is a level 2 diagnostic certainty (proteinuria diagnosed with greater than or equal to 1+ protein on urine dipstick).
  • GAIA Preeclampsia Level of Diagnostic Certainty Terminology|Global Alignment of Immunization safety Assessment in pregnancy Preeclampsia Level of Diagnostic Certainty Terminology

    a subset of terminology related to preeclampsia, developed by the global alignment of immunization safety assessment in pregnancy consortium to aid in monitoring and improving fetal and maternal outcomes.
  • GAIA Preeclampsia Level of Diagnostic Certainty|Global Alignment of Immunization safety Assessment in pregnancy Preeclampsia Level of Diagnostic Certainty|Preeclampsia Level of Diagnostic Certainty

    a classification of maternal and fetal outcomes relating to preeclampsia, developed by the global alignment of immunization safety assessment in pregnancy, based on the extent to which the diagnosis has been confirmed.
  • Preeclampsia

    a systolic blood pressure of 140 mmhg or higher, or a diastolic blood pressure of 90 mmhg or higher on two occasions at least 4 hours apart (or greater than or equal to 160/110 mmhg within a short interval) after 20 weeks of gestation in a woman with previously normal blood pressure. it may present with proteinuria but if not, it may be associated with thrombocytopenia, impaired liver function, progressive renal insufficiency, pulmonary edema, or new-onset cerebral or visual disturbances.
  • Pre-Existing Hypertension with Pre-Eclampsia, Complicating Childbirth|Pre-existing hypertension with pre-eclampsia, complicating childbirth

    evidence of pre-existing hypertension with pre-eclampsia, complicating childbirth.
  • Pre-Existing Hypertension with Pre-Eclampsia, Complicating the Puerperium|Pre-existing hypertension with pre-eclampsia, complicating the puerperium

    evidence of pre-existing hypertension with pre-eclampsia, complicating the puerperium.
  • Pre-Existing Hypertension with Pre-Eclampsia, First Trimester|Pre-existing hypertension with pre-eclampsia, first trimester

    evidence of pre-existing hypertension with pre-eclampsia in the first trimester.
  • Pre-Existing Hypertension with Pre-Eclampsia, Second Trimester|Pre-existing hypertension with pre-eclampsia, second trimester

    evidence of pre-existing hypertension with pre-eclampsia in the second trimester.
  • Pre-Existing Hypertension with Pre-Eclampsia, Third Trimester|Pre-existing hypertension with pre-eclampsia, third trimester

    evidence of pre-existing hypertension with pre-eclampsia in the third trimester.
  • Severe Preeclampsia|Preeclampsia with Severe Features|Preeclampsia with Severe Features

    preeclampsia with a systolic blood pressure of 160 mmhg or higher, or a diastolic blood pressure of 110 mmhg or higher on two occasions at least 4 hours apart while on bedrest. it is associated with thrombocytopenia (platelets less than 100,000 per microliter), impaired liver function (twice normal elevation of hepatic transaminases; severe, persistent right upper quadrant or epigastric pain), progressive renal insufficiency (serum creatinine greater than 1.1 mg/dl or doubling of baseline in the absence of other renal disease), pulmonary edema, or new-onset cerebral or visual disturbances.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • convulsions following conditions in O10 O14 O16

Patient Education


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.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.