2025 ICD-10-CM code O10.913
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Hypertensive disorders - Unspecified pre-existing hypertension complicating pregnancy Chapter 10: Pregnancy, childbirth and the puerperium Feed
This code signifies unspecified pre-existing hypertension that complicates pregnancy during the third trimester.
Medical necessity is established by the presence of pre-existing hypertension and its potential to cause complications during pregnancy, including adverse outcomes for both mother and fetus, necessitating regular monitoring and intervention.The severity of the pre-existing hypertension and its potential for complications need to be documented.
Obstetricians and other healthcare professionals managing the pregnancy are responsible for documenting and coding this condition.The clinical responsibility encompasses the diagnosis, management, and monitoring of pre-existing hypertension throughout the pregnancy and particularly during the third trimester to mitigate potential risks for both mother and fetus. Regular blood pressure monitoring, close monitoring for complications (such as pre-eclampsia or eclampsia), and appropriate medical management including medication and lifestyle adjustments (if needed) are essential.
- Chapter 10: Pregnancy, childbirth and the puerperium
- O10-O16: Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
In simple words: This code is used when a pregnant woman already has high blood pressure before becoming pregnant, and this high blood pressure causes problems during the last three months of her pregnancy (third trimester).
O10.913, from the ICD-10-CM classification system, denotes unspecified pre-existing hypertension complicating pregnancy specifically during the third trimester (28 weeks 0 days until delivery).It is crucial to note that this code is exclusively for maternal records; it should never be used for newborn records.The code includes cases of pre-existing hypertension with or without pre-existing proteinuria.It excludes instances where pre-existing hypertension is accompanied by superimposed pre-eclampsia (coded under O11.-).
Example 1: A 35-year-old woman with a history of hypertension presents for her third-trimester prenatal visit. Her blood pressure remains elevated despite medication. O10.913 is used to code the pre-existing hypertension complicating her pregnancy in the third trimester., A 28-year-old pregnant woman, diagnosed with hypertension prior to pregnancy, experiences a sudden increase in blood pressure during her third trimester, but shows no other symptoms of pre-eclampsia. O10.913 is used to reflect this situation., A 40-year-old patient with chronic hypertension is admitted to the hospital at 36 weeks gestation due to worsening hypertension.She develops no other signs of preeclampsia. O10.913 is appropriate.
Complete medical history detailing pre-existing hypertension, including diagnosis date and prior treatment; documentation of blood pressure measurements throughout pregnancy; documentation of any medications used to manage hypertension; notes on any complications arising from hypertension; and evidence of appropriate management of the hypertension and monitoring of fetal well-being.
** This code should only be used when the pre-existing hypertension is not accompanied by superimposed pre-eclampsia or other specific hypertensive complications of pregnancy.
- Payment Status: Active
- Specialties:Obstetrics and Gynecology, Internal Medicine, Family Medicine
- Place of Service:Office, Hospital (Inpatient and Outpatient), Birthing Center