The elevated blood pressure is mild and typically occurs in the later stages of pregnancy. Gestational hypertension can lead to preeclampsia. Assign code 642.3x for gestational hypertension. Code 642.3x also includes documentation of transient hypertension in pregnancy and pregnancy-induced hypertension.
019: Pre-existing essential hypertension complicating pregnancy, unspecified trimester.
ICD-10 uses only a single code for individuals who meet criteria for hypertension and do not have comorbid heart or kidney disease. That code is I10, Essential (primary) hypertension.
Pregnancy-induced hypertension (PIH) complicates 6-10% of pregnancies. It is defined as systolic blood pressure (SBP) >140 mmHg and diastolic blood pressure (DBP) >90 mmHg. It is classified as mild (SBP 140-149 and DBP 90-99 mmHg), moderate (SBP 150-159 and DBP 100-109 mmHg) and severe (SBP ≥ 160 and DBP ≥ 110 mmHg).
In pregnant women, chronic hypertension (also called preexisting hypertension) can be defined as hypertension known to be present before conception or first recognized before 20 weeks of gestation.
ICD-Code I10 is a billable ICD-10 code used for healthcare diagnosis reimbursement of Essential (Primary) Hypertension.
ICD-10 code Z21 for Asymptomatic human immunodeficiency virus [HIV] infection status is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
Pregnancy-induced hypertension is a rise in blood pressure, without proteinuria, during the second half of pregnancy. Pre-eclampsia is a multisystem disorder, unique to pregnancy, that is usually associated with raised blood pressure and proteinuria. It rarely presents before 20 weeks' gestation.
Why is pregnancy-induced hypertension a concern? With high blood pressure, there is an increase in the resistance of blood vessels. This may hinder blood flow in many different organ systems in the expectant mother including the liver, kidneys, brain, uterus, and placenta.
Primary hypertension (Essential hypertension) – The most common form of hypertension with no identifiable cause. It accounts for 95% of people with hypertension.
The below Hypertension guidelines have been taken from the ICD-10-CM Official Guidelines for Coding and Reporting FY 2021 provided by the Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS).
A 45-year-old male patient by name Chris has been diagnosed with elevated blood pressure. Chris does not have a history of hypertension. Report the appropriate ICD 10 CM?
The Pregnancy ICD 10 code belong to the Chapter 15 – Pregnancy, Childbirth, and the Puerperium of the ICD-10-CM and these codes take sequencing priority over all the other chapter codes.
If the provider has documented that the pregnancy is incidental to the visit, which means that the reason for the visit was not pregnancy related and the provider did not care for the pregnancy, the code to be used is Z33.1, Pregnant state, incidental and not the chapter 15 codes.
Galactorrhea. Other obstetric conditions, not elsewhere classified (Code range O94-O9A) Sequelae (Late effects) of complication of pregnancy, childbirth, and the puerperium (O94)- Includes conditions or late effects that may occur any time after the puerperium.
Morbidly adherent placenta (Placenta accrete, Placenta increta, Placenta percreta) Placental infarction. Placenta previa (Code range O44.00- O44.53)- Condition in which the placenta is implanted in the lower parts of the uterus.
HELLP (hemolysis, elevated liver enzymes, low platelet count) syndrome – (Code range O14.20- O14.25) – A very rare condition seen in pregnant patients mostly with pre-eclampsia usually before the 37 th week of pregnancy.
Hydatidiform mole (Code range- O01.0 – O01.9) – Also known as molar pregnancy is an abnormal fertilized egg or a non-cancerous tumor of the placental tissue which mimics a normal pregnancy initially but later leads to vaginal bleeding along with severe nausea and vomiting.
Ectopic pregnancy (Code range- O00.00 – O00.91) – This is a potentially life-threatening condition in which the fertilize egg is implanted outside the uterus, usually in one of the fallopian tubes or occasionally in the abdomen or ovaries.
Just like in non-obstetric cases, coding for pre-existing hypertensive heart disease and kidney disease in pregnancy requires some extra care because you have to identify the type of heart or kidney disease. Check out these subcategories and the “use additional code” notes that accompany them:
Pre-existing hypertension complicating pregnancy, childbirth and the puerperium and O11. – Pre-existing hypertension with pre-eclampsia are both specific to pre-existing hypertension. Term tips: Pre-existing means that the mother had the condition prior to pregnancy. If you like sources for your terms, you’ll find that definition ...
Hypertension is a common diagnosis, so a lot of specialties have to understand the rules for coding this condition. Obstetrics coders have to go one step further for hypertension and learn the specific rules for coding pre-existing hypertension in pregnancy, which is our focus today.