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← All Conditions (3,135) / Heart & Cardiovascular Disease

Heart & Cardiovascular Disease (164 Condition Guides)

Coronary artery disease, heart failure, arrhythmias, and structural heart conditions.

Interactive MyChart Lab & Cuff Translator • Lab Bell-Curve “Normal” vs. Physiological Optimal

Why Your Portal Says “Normal” When You Still Feel Awful: Enter Your Number

Quest and LabCorp “Normal” ranges are 95% population bell curves—not physiological optimums. Select a marker and type your result below:

3-Zone Clinical Cutoff Audit • Serum Ferritin (Iron Storage)

18 ng/mL = Marked "Normal" by Lab, Yet Clinically Depleted (< 30–50 ng/mL)

Default Sample: 18 ng/mL
Zone 1 • Clinical Cutoff
< 15 ng/mL • Overt Deficiency
< 15 ng/mL (Absolute Depletion)
Zone 2 • Portal “Normal” Gray Zone
15–49 ng/mL • "Normal" Yet Depleted
15–150 ng/mL (Quest/LabCorp Bell Curve)
Zone 3 • Physiological Optimal
50–100 ng/mL • Clinical Optimal
50–100 ng/mL (Physiological Optimal)
What This Number Means in Plain English

Commercial labs only flag Ferritin below 15 ng/mL, but clinical trials confirm fatigue, restless legs, diffuse telogen hair shedding, and impaired T4-to-T3 thyroid conversion begin whenever Ferritin drops below 30–50 ng/mL.

Action Plan: Take 25–28 mg elemental Iron Bisglycinate on alternate mornings (Mon/Wed/Fri) with Vitamin C to bypass the 24-hour hepcidin block, then re-test in 8–12 weeks.

⚠ Lab Assay & Cuff False-Alarm Check

Acute inflammation, viral illness, or fatty liver artificially elevates Ferritin (it is an acute-phase reactant). Always pair Ferritin with Fasting Transferrin Saturation (TSAT) and hs-CRP.

Read Low Ferritin & Iron Deficiency Clinical Guide → Find a Hematology / Iron Specialist →
Specialty Directory

Heart & Cardiovascular Disease Guides (164)

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Heart & Vascular

Bruises

Also called: Contusion • Ecchymoses • Bump

A bruise is a mark on your skin caused by blood trapped under the surface. It happens when an injury crushes small blood vessels but does not break the skin. Those vessels break open and leak blood under the skin. Bruises are often painful and swollen. You can get skin, muscle and bone bruises. Bone bruises are the most serious. It can take months for a bruise to fade, but most last about two weeks. They start off a reddish color, and then turn bluish-purple and greenish-yellow before returning to normal. To reduce bruising, ice the injured area and elevate it above your heart.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → T14.8XXA
Heart & Vascular

Cardiac Rehabilitation

Cardiac rehabilitation (rehab) is a medically supervised program to help people who have: A heart attack Angioplasty or coronary artery bypass grafting for coronary heart disease A heart valve repair or replacement A heart transplant or a lung transplant Angina Heart failure The goal is to help you return to an active life, and to reduce the risk of further heart problems. A team of specialists will create a plan for you that includes exercise training, education on heart healthy living, and counseling to reduce stress. You will learn how to reduce your risk factors, such as high blood pressure, high blood cholesterol, depression, and diabetes.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I48.6
Heart & Vascular

Cardiac arrest

Also called: Cardio • Myocardium

Cardiac arrest (ICD-10-CM I46.9) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I46.9
Heart & Vascular

Cardiac arrhythmia

Cardiac arrhythmia (ICD-10-CM I49.9) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I49.9
Heart & Vascular

Cardiac injury

Also called: Cardio • Myocardium

Cardiac injury (ICD-10-CM S26.90XA) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → S26.90XA
Heart & Vascular

Cardiac myxoma

Also called: Cardio • Myocardium

Cardiac myxoma (ICD-10-CM D15.1) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → D15.1
Heart & Vascular

Cardiac prosthesis - infected

Also called: Cardio • Myocardium

Cardiac prosthesis - infected (ICD-10-CM T85.79XA) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → T85.79XA
Heart & Vascular

Cardiac septal defect, acquired

Cardiac septal defect, acquired (ICD-10-CM I51.0) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I51.0
Heart & Vascular

Cardiomegaly

Designated in federal medical registries as I51.7, Cardiomegaly falls under Heart & Vascular management, where 12-lead resting electrocardiography [Cardiomegaly I51.7] establishes baseline severity and rules out diagnostic mimics.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I51.7
Heart & Vascular

Cardiomyopathy

Also called: Arrhythmogenic right ventricular cardiomyopathy • Dilated cardiomyopathy • Hypertrophic cardiomyopathy

Cardiomyopathy is the name for diseases of the heart muscle. These diseases enlarge your heart muscle or make it thicker and more rigid than normal. In rare cases, scar tissue replaces the muscle tissue. Some people live long, healthy lives with cardiomyopathy. Some people don't even realize they have it. In others, however, it can make the heart less able to pump blood through the body. This can cause serious complications, including: Heart failure Abnormal heart rhythms Heart valve problems Sudden cardiac arrest (SCA) Heart attacks, high blood pressure, infections, and other diseases can all cause cardiomyopathy. Some types of cardiomyopathy run in families.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.9
Heart & Vascular

Cardiomyopathy - ischemic

Cardiomyopathy - ischemic (ICD-10-CM I25.5) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I25.5
Heart & Vascular

Cardiomyopathy due to drug and external agent

Cardiomyopathy due to drug and external agent (ICD-10-CM I42.7) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.7
Heart & Vascular

Carotid Artery Disease

Also called: Artery • Arterial • Arteries

Your carotid arteries are two large blood vessels in your neck. They supply your brain and head with blood. If you have carotid artery disease, the arteries become narrow or blocked, usually because of atherosclerosis. Atherosclerosis is the buildup of plaque, which is made up of fat, cholesterol, calcium, and other substances found in the blood. Carotid artery disease is serious because it can block the blood flow to your brain, causing a stroke. Too much plaque in the artery can cause a blockage. You can also have a blockage when a piece of plaque or a blood clot breaks off the wall of an artery.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I77.9
Heart & Vascular

Cervical adenitis

Cervical adenitis (ICD-10-CM I88.9) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I88.9
Heart & Vascular

Chagas Disease

Also called: American trypanosomiasis • South American trypanosomiasis

Chagas disease, or American trypanosomiasis, is an illness that can cause serious heart and stomach problems. It is caused by a parasite. Chagas disease is common in Latin America, especially in poor, rural areas. It can also be found in the United States, most often in people who were infected before they moved to the U.S. What causes Chagas disease? Chagas disease is caused by the Trypanosoma cruzi parasite. It is usually spread by infected blood-sucking bugs called triatomine bugs. They are also known as "kissing bugs" because they often bite people's faces. When one of these bugs bites you, it leaves behind infected waste.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → B57.2
Heart & Vascular

Chikungunya

Chikungunya is a virus that spread by the same kinds of mosquitoes that spread dengue and Zika virus. Rarely, the virus can spread from the pregnant parent to their newborn around the time of birth. It may also spread through contact with infected blood. There have been outbreaks of chikungunya virus in Africa, Asia, Europe, the Indian and Pacific Oceans, the Caribbean, and Central and South America. Most people who have chikungunya will have symptoms, which can be severe. They usually start 3-7 days after being bitten by an infected mosquito. The most common symptoms are fever and joint pain. Other symptoms may include headache, muscle pain, joint swelling, and rash.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I48.0
Heart & Vascular

Chronic atrial fibrillation

Chronic atrial fibrillation (ICD-10-CM I48.20) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I48.20
Heart & Vascular

Chronic combined systolic (congestive) and diastolic (congestive) heart failure

Chronic combined systolic (congestive) and diastolic (congestive) heart failure (ICD-10-CM I50.42) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I50.42
Heart & Vascular

Chronic diastolic (congestive) heart failure

Chronic diastolic (congestive) heart failure (ICD-10-CM I50.32) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I50.32
Heart & Vascular

Chronic systolic (congestive) heart failure

Chronic systolic (congestive) heart failure (ICD-10-CM I50.22) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I50.22
Heart & Vascular

Clot on heart or vessel wall (mural thrombus)

Also called: Mural thrombus • Stroke

Clot on heart or vessel wall (mural thrombus) (ICD-10-CM I51.3) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I51.3
Heart & Vascular

Congenital Heart Defects

Also called: Cardio • Myocardium • Left

What are congenital heart defects? Congenital heart defects (CHDs) are problems with the structure of the heart. "Congenital" means that that the problems are present at birth. These defects happen when a fetus's heart doesn't develop normally during pregnancy. Congenital heart defects are the most common type of birth defect. Congenital heart defects can change the way the heart pumps blood. They may make blood flow too slowly, go the wrong way, or block it completely. There are many types of congenital heart defects. They can happen in one or more parts of the heart.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → Q24.9
Heart & Vascular

Cor pulmonale

Cor pulmonale (ICD-10-CM I27.81) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I27.81
Heart & Vascular

Coronary Artery Bypass Surgery

Also called: Bypass surgery • CABG • Coronary artery bypass graft

Coronary artery bypass surgery creates a new path for blood to flow to your heart. This surgery is sometimes called a coronary artery bypass graft (CABG) or heart bypass. It's the most common heart surgery in adults. You may need this surgery if you have a blocked or partially blocked artery in your heart. This surgery is often used to treat coronary artery disease (CAD). Your coronary arteries supply blood to your heart. If you have coronary artery disease, a sticky material called plaque builds up in your coronary arteries. This can cause them to harden and narrow.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I25.2
Heart & Vascular

Coronary Artery Disease

Also called: CAD • Coronary arteriosclerosis • Coronary atherosclerosis

Coronary artery disease (CAD) is the most common type of heart disease in the United States and a leading cause of death for both men and women. CAD affects the coronary arteries, which are the blood vessels that carry blood and oxygen to your heart muscle. When these arteries are damaged or diseased, your heart does not get the blood it needs. What causes coronary artery disease? CAD develops slowly over time when plaque builds up inside your coronary arteries. Plaque is a waxy, sticky substance made of fat, cholesterol, calcium, and other materials found in your blood. This buildup is called atherosclerosis.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I25.10
Heart & Vascular

Coronary artery aneurysm

Coronary artery aneurysm—coded clinically as I25.41 across Heart & Vascular guidelines—combines ambulatory rhythm monitoring [Coronary artery aneurysm I25.41] with structured follow-up of NT-proBNP [Coronary artery aneurysm I25.41] (< 100 pg/mL (I25.41)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I25.41
Heart & Vascular

Coronary artery dissection

Coronary artery dissection (ICD-10-CM I25.42) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I25.42
Heart & Vascular

Diabetic Heart Disease

Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose comes from foods you eat. The cells of your body need glucose for energy. A hormone called insulin helps the glucose get into your cells. With type 1 diabetes, your body doesn't make insulin. With type 2 diabetes, your body doesn't make or use insulin well. Without enough insulin, glucose builds up in your blood and causes high blood sugar levels. What is diabetic heart disease? Diabetic heart disease is a term for heart disease in people who have diabetes.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.3
Heart & Vascular

Dilated cardiomyopathy

Dilated cardiomyopathy (ICD-10-CM I42.00) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.00
Heart & Vascular

Dressler's syndrome

Dressler's syndrome (ICD-10-CM I24.1) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I24.1
Heart & Vascular

Electrical Injuries

Also called: Electric shock • Electrical burn

When you come in direct contact with electricity, it can pass through your body and cause injuries. These electrical injuries can be external or internal. You may have one or both types. External injuries are skin burns. Internal injuries include damage to your organs, bones, muscles, and nerves. You could also have abnormal heart rhythms and sudden cardiac arrest (SCA). How bad your injuries are depends on how strong the electric current was, what type of current it was, how it moved through your body, and how long you were exposed. Other factors include how healthy you are, and how quickly you get treatment.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I50.6
Heart & Vascular

Emergency Medical Services

If you get very sick or badly hurt and need help right away, you should use emergency medical services. These services use specially trained people and specially equipped facilities. You may need care in the hospital emergency room (ER). Doctors and nurses there treat emergencies, such as heart attacks and injuries. For some emergencies, you need help where you are. Emergency medical technicians, or EMTs, do specific rescue jobs. They answer emergency calls and give basic medical care. Some EMTs are paramedics - they have training to do medical procedures on site. They usually take you to the ER for more care.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I20.8
Heart & Vascular

Encephalopathy - hypertensive

Encephalopathy - hypertensive (ICD-10-CM I67.4) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I67.4
Heart & Vascular

End stage heart failure

End stage heart failure—coded clinically as I50.84 across Heart & Vascular guidelines—combines ambulatory rhythm monitoring [End stage heart failure I50.84] with structured follow-up of Apolipoprotein B (ApoB) [End stage heart failure I50.84] (< 70 mg/dL (I50.84)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I50.84
Heart & Vascular

Endocardial fibroelastosis

Endocardial fibroelastosis (ICD-10-CM I42.4) is evaluated within Heart & Cardiovascular Disease using targeted symptom history, diagnostic lab or imaging thresholds, and evidence-graded first-line therapy.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.4
Heart & Vascular

Endomyocardial (eosinophilic) disease

Endomyocardial (eosinophilic) disease—coded clinically as I42.3 across Heart & Vascular guidelines—combines transthoracic echocardiography [Endomyocardial (eosinophilic) disease I42.3] with structured follow-up of NT-proBNP [Endomyocardial (eosinophilic) disease I42.3] (< 100 pg/mL (I42.3)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I42.3
Connected Clinical Ecosystem • Medications, Supplements & Specialists

Go From Diagnosis to Treatment: Connected Flagship Guides

Prescription Medications (/meds)

FDA DailyMed & NADAC Cash Price Guides

Decode tablet imprints, IR vs. ER stomach side effects, Rule-of-6 dose response curves, and $3–$9 generic cash prices.

→ Atorvastatin (Lipitor) 10–80 mg Guide → Metformin (Glucophage) IR vs. ER Guide Browse All Prescription Medications →
Dietary Supplements (/supplements)

NIH ODS & Elemental Label Math Guides

Separate human RCT outcomes from social media hype—with elemental vs. compound weight decoders and serum 25(OH)D targets.

→ Vitamin D3 (Cholecalciferol) & K2 Guide → Magnesium Glycinate vs. Citrate/Oxide Guide Browse All Supplements & Lab Decoders →
Verified Specialists (/doctors)

GreatDoc™ Score & Zero-Wall Insurance Check

Compare U.S. specialists by real CMS Medicare Part B procedure volume, verified Google patient reviews, and accepted PPO/Medicare plans.

→ Dr. Reza Nazemi, MD (Beverly Hills Endocrinology) → NEJM 3-Year Tirzepatide Study Breakdown Search Verified Doctors by Specialty & City →