ICD-10 Diagnosis Code O10.42

Pre-existing secondary hypertension complicating childbirth

Diagnosis Code O10.42

ICD-10: O10.42
Short Description: Pre-existing secondary hypertension complicating childbirth
Long Description: Pre-existing secondary hypertension complicating childbirth
This is the 2017 version of the ICD-10-CM diagnosis code O10.42

Code Classification
  • Pregnancy, childbirth and the puerperium
    • Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
      • Pre-existing hypertension compl preg/chldbrth (O10)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Maternity diagnoses Additional informationCallout TooltipMaternity diagnoses
Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Diagnoses for females only Additional informationCallout TooltipDiagnoses for females only
Diagnoses for females only.

Diagnostic Related Groups
The diagnosis code O10.42 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 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.

  • Hypertension secondary to renal disease complicating AND/OR reason for care during childbirth
  • Hypertension secondary to renal disease in obstetric context
  • Pre-existing secondary hypertension complicating pregnancy, childbirth and puerperium

Information for Patients

Childbirth Problems

While childbirth usually goes well, complications can happen. They can cause a risk to the mother, baby, or both. Possible complications include

  • Preterm (premature) labor, when labor starts before 37 completed weeks of pregnancy
  • Problems with the umbilical cord
  • Problems with the position of the baby, such as breech, in which the baby is going to come out feet first
  • Birth injuries

For some of these problems, the baby may need to be delivered surgically by a Cesarean section.

  • Assisted delivery with forceps
  • Brachial plexus injury in newborns
  • Breech birth
  • Caput succedaneum
  • Meconium aspiration syndrome
  • Premature rupture of membranes

[Read More]

High Blood Pressure in Pregnancy

If you are pregnant, high blood pressure can cause problems for you and your unborn baby. You may have had high blood pressure before you got pregnant. Or you may get it once you are pregnant - a condition called gestational hypertension. Either one can cause low birth weight or premature delivery of the baby.

Controlling your blood pressure during pregnancy and getting regular prenatal care are important for the health of you and your baby. Treatments for high blood pressure in pregnancy may include close monitoring of the baby, lifestyle changes, and certain medicines.

Some pregnant women with high blood pressure develop preeclampsia. It's a sudden increase in blood pressure after the 20th week of pregnancy. It can be life-threatening for both you and the unborn baby. There is no proven way to prevent it. Most women who have signs of preeclampsia are closely monitored to lessen or avoid complications. The only way to "cure" preeclampsia is to deliver the baby.

NIH: National Heart, Lung, and Blood Institute

  • Eclampsia
  • HELLP syndrome
  • Preeclampsia
  • Preeclampsia - self-care

[Read More]
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