Diagnosis Code O16.4
Information for Medical Professionals
The following edits are applicable to this code:
Maternity diagnoses Maternity diagnoses
Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
Diagnoses for females only Diagnoses for females only
Diagnoses for females only.
Convert to ICD-9 General 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.
- 642.91 - Hypertens NOS-delivered (approximate) 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.
- Chronic hypertension complicating AND/OR reason for care during childbirth
- Chronic hypertension in obstetric context
- Hypertension complicating pregnancy, childbirth and the puerperium
- Hypertension complicating pregnancy, childbirth and the puerperium, antepartum
Replacement Code Replacement Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2017. This is a new and revised code for the FY 2018 (October 1, 2017-September 30, 2018).
This code replaces the following previously assigned ICD-10 code(s) listed below:
- O16.9 - Unspecified maternal hypertension, unspecified trimester
Information for Patients
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 (Medical Encyclopedia)
- HELLP syndrome (Medical Encyclopedia)
- Preeclampsia (Medical Encyclopedia)
- Preeclampsia - self-care (Medical Encyclopedia)