C C26891 Thrombosis Thrombosis The formation of a blood clot in the lumen of a vessel or heart chamber; causes include coagulation disorders and vascular endothelial injury. C2931 Cardiovascular Disorder C99147 Neonatal Research Network Terminology C26891 Thrombosis Blood Vessel Thrombosis Formation of a blood clot in the lumen of a vessel. Causes include coagulation disorders and vascular endothelial injury. C2931 Cardiovascular Disorder C99147 Neonatal Research Network Terminology C C25215 Karyotype Karyotype The assessment of the chromosomal morphology and number in somatic cells of an individual. C15709 Genetic Test|Genetic Testing C99147 Neonatal Research Network Terminology C25215 Karyotype Karyotype The appearance of the chromosomal makeup of a somatic cell in an individual or species, including the number and arrangement and size and structure of the chromosomes. C15709 Genetic Test|Genetic Testing C99147 Neonatal Research Network Terminology C C26872 Respiratory Failure Respiratory Failure The significant impairment of gas exchange within the lungs resulting in hypoxia, hypercarbia, or both, to the extent that organ tissue perfusion is severely compromised. Causes include chronic obstructive pulmonary disease, asthma, emphysema, acute respiratory distress syndrome, pneumonia, pulmonary edema, pneumothorax, and congestive heart failure. Treatment requires intubation and mechanical ventilation until the time the lungs recover sufficient function. C26871 Respiratory System Disorder C99147 Neonatal Research Network Terminology C26872 Respiratory Failure Respiratory Failure Impaired gas exchange by the respiratory system resulting in hypoxemia and decreased oxygenation of the tissues that may be associated with increased arterial levels of carbon dioxide. Causes include chronic obstructive pulmonary disease, asthma, emphysema, acute respiratory distress syndrome, pneumonia, pulmonary edema, pneumothorax, and congestive heart failure. C26871 Respiratory System Disorder C99147 Neonatal Research Network Terminology C C4371 Pregnancy Associated Hypertension Pregnancy-Induced Hypertension A blood pressure elevation after 20 weeks of gestation in the absence of either proteinuria or systemic findings like thrombocytopenia, impaired liver function, progressive renal insufficiency, pulmonary edema or the new-onset of cerebral or visual disturbances. C3117 Hypertensive Disorder C34941 Complication Related to Pregnancy|Pregnancy Complication C99147 Neonatal Research Network Terminology C4371 Pregnancy Associated Hypertension Pregnancy-Induced Hypertension A blood pressure elevation after 20 weeks of gestation in the absence of proteinuria or systemic findings like thrombocytopenia, impaired liver function, progressive renal insufficiency, pulmonary edema or the new-onset of cerebral or visual disturbances. C3117 Hypertensive Disorder C34941 Complication Related to Pregnancy|Pregnancy Complication C99147 Neonatal Research Network Terminology C C84915 Necrotizing Enterocolitis Necrotizing Enterocolitis A fulminating disease of neonates in which there is extensive mucosal ulceration, pseudomembrane formation, submucosal hemorrhage, and necrosis usually of the right colon, cecum, terminal ileum, and appendix, possibly due to perinatal intestinal ischemia and bacterial invasion. Progression can lead to necrosis, perforation and/or scarring of the intestinal tract. C97171 Congenital Abnormality of the Digestive System C99147 Neonatal Research Network Terminology C84915 Necrotizing Enterocolitis Necrotizing Enterocolitis A fulminating disease of neonates in which there is extensive mucosal ulceration, pseudomembrane formation, submucosal hemorrhage, and necrosis usually of the right colon, cecum, terminal ileum, and appendix, possibly due to perinatal intestinal ischemia and bacterial invasion. Pneumatosis intestinalis is commonly seen on imaging. Progression can lead to necrosis, perforation and/or scarring of the intestinal tract. C97171 Congenital Abnormality of the Digestive System C99147 Neonatal Research Network Terminology C C92786 Fetal Fibronectin Test Fetal Fibronectin Measurement A test for the presence of fetal fibronectin in the cervico-vaginal area that is used to predict preterm birth. C92721 Screening or Clinical Tests during Pregnancy C99147 Neonatal Research Network Terminology C92786 Fetal Fibronectin Test Fetal Fibronectin Measurement A laboratory test to detect fetal prematurity by measuring levels of fetal fibronectin from vaginal and cervical secretions. C92721 Screening or Clinical Tests during Pregnancy C99147 Neonatal Research Network Terminology C C92863 Prolonged Fetal Heart Rate Acceleration Prolonged Fetal Heart Rate Acceleration A fetal heart rate acceleration that lasts 2 to less than 10 minutes. C92788 Fetal Heart Acceleration|Fetal Heart Rate Acceleration C99147 Neonatal Research Network Terminology C92863 Prolonged Fetal Heart Rate Acceleration Prolonged Fetal Heart Rate Acceleration A fetal heart rate acceleration that lasts 2 to 10 minutes. C92788 Fetal Heart Acceleration|Fetal Heart Rate Acceleration C99147 Neonatal Research Network Terminology C C92864 Prolonged Fetal Heart Rate Deceleration Finding of Prolonged Deceleration A decrease in the fetal heart rate below baseline lasting 2 to less than 10 minutes with a decrease from baseline that is greater than or equal to 15 beats per minute. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C92864 Prolonged Fetal Heart Rate Deceleration Finding of Prolonged Deceleration A decrease in the fetal heart rate below baseline lasting 2 to 10 minutes with a decrease from baseline that is greater than or equal to 15 beats per minute. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C C92866 Recurrent Fetal Heart Rate Deceleration Recurrent Deceleration Fetal heart rate decelerations that occur with greater than or equal to 50 percent of uterine contractions within a 20 minute timeframe. Applies to early, late or variable decelerations. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C92866 Recurrent Fetal Heart Rate Deceleration Recurrent Deceleration Fetal heart rate decelerations that occur with greater than or equal to 50 percent of uterine contractions within a 20 minute timeframe. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C C92914 Variable Fetal Heart Rate Deceleration Finding of Variable Deceleration An abrupt decrease in the fetal heart rate below baseline that lasts 15 seconds to less than two minutes. The decrease from baseline fetal heart rate is greater than or equal to 15 beats per minutes, and the time from onset to nadir of the deceleration is less than 30 seconds. Variable fetal heart rate decelerations that are associated with successive uterine contractions commonly have varying onsets, depths, and durations. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C92914 Variable Fetal Heart Rate Deceleration Finding of Variable Deceleration An abrupt decrease in the fetal heart rate below baseline that lasts 15 seconds to two minutes. The decrease from baseline fetal heart rate is greater than or equal to 15 beats per minutes, and the time from onset to nadir of the deceleration is less than 30 seconds. Variable fetal heart rate decelerations that are associated with successive uterine contractions commonly have varying onsets, depths, and durations. C92789 Fetal Heart Deceleration|Fetal Heart Rate Deceleration C99147 Neonatal Research Network Terminology C C92929 Fetal Heart Rate Monitoring Fetal Heart Monitoring Fetal Heart Rate Monitoring The act of observing and recording the fetal heart rate for determining the baseline values or other abnormal findings. C92714 Fetal Examination C99147 Neonatal Research Network Terminology C92929 Fetal Heart Rate Monitoring Fetal Heart Monitoring Fetal Heart Rate Monitoring The act of observing and recording the fetal heart rate for determining the baseline values and any variations or other abnormal tracings. C92714 Fetal Examination C99147 Neonatal Research Network Terminology C C98903 Conjoined Twins Conjoined Twins A monoamniotic twin gestation in which the twins share one or more organs. C90491 Pregnancy Outcome C99147 Neonatal Research Network Terminology C98903 Conjoined Twins Conjoined Twins A rare phenomenon in which the bodies of two identical twins are joined in the uterus. Approximately half of the cases are stillborn. C90491 Pregnancy Outcome C99147 Neonatal Research Network Terminology C C98701 Abdominal Aortic Thrombosis Abdominal Aorta Thrombosis Formation of blood clot in the lumen of the abdominal aorta. It may lead to severe abdominal pain and ischemic necrosis of the intestine. C26891 Thrombosis C99147 Neonatal Research Network Terminology C98701 Abdominal Aortic Thrombosis Abdominal Aorta Thrombosis Formation of blood clot in the lumen of the abdominal aorta. It may lead to severe abdominal pain and ischemic necrosis of the intestine. C26891 Blood Vessel Thrombosis C99147 Neonatal Research Network Terminology C C98826 Arterial Thrombosis Arterial Thrombosis Formation of a blood clot in the lumen of an artery. C26891 Thrombosis C99147 Neonatal Research Network Terminology C98826 Arterial Thrombosis Arterial Thrombosis Formation of a blood clot in the lumen of an artery. C26891 Blood Vessel Thrombosis C99147 Neonatal Research Network Terminology C C99107 Venous Thrombosis Venous Thrombosis The formation of a blood clot (thrombus) in the lumen of a vein. C26891 Thrombosis C99147 Neonatal Research Network Terminology C99107 Venous Thrombosis Venous Thrombosis The formation of a blood clot (thrombus) in the lumen of a vein. C26891 Blood Vessel Thrombosis C99147 Neonatal Research Network Terminology