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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

Lymphedema

Also called: Lymphatic obstruction

Lymphedema is the name of a type of swelling. It happens when lymph builds up in your body's soft tissues. Lymph is a fluid that contains white blood cells that defend against germs. It can build up when the lymph system is damaged or blocked. It usually happens in the arms or legs. Causes of lymphedema include: Infection Cancer Scar tissue from radiation therapy or surgical removal of lymph nodes Inherited conditions in which lymph nodes or vessels are absent or abnormal Treatment can help control symptoms. It includes exercise, compression devices, skin care, and massage.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I89.0
Heart & Vascular

Lymphoid hypoplasia

Designated in federal medical registries as I89.8, Lymphoid hypoplasia falls under Heart & Vascular management, where coronary perfusion imaging [Lymphoid hypoplasia I89.8] 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 → I89.8
Heart & Vascular

Malaria

Malaria is a serious disease caused by a parasite. You get it when an infected mosquito bites you. Malaria is a major cause of death worldwide, but it is almost wiped out in the United States. The disease is mostly a problem in developing countries with warm climates. If you travel to these countries, you are at risk. There are four different types of malaria caused by four related parasites. The most deadly type occurs in Africa south of the Sahara Desert. Malaria symptoms include chills, flu-like symptoms, fever, vomiting, diarrhea, and jaundice. A blood test can diagnose it. It can be life-threatening. However, you can treat malaria with drugs.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → B54
Heart & Vascular

Marfan Syndrome

Marfan syndrome is a disorder that affects connective tissue. Connective tissues are proteins that support skin, bones, blood vessels, and other organs. One of these proteins is fibrillin. A problem with the fibrillin gene causes Marfan syndrome. Marfan syndrome can be mild to severe, and the symptoms can vary. People with Marfan syndrome are often very tall, thin, and loose jointed. Most people with Marfan syndrome have heart and blood vessel problems, such as a weakness in the aorta or heart valves that leak. They may also have problems with their bones, eyes, skin, nervous system, and lungs. There is no specific test for Marfan syndrome.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → Q87.40
Heart & Vascular

Mitral Valve Prolapse

Also called: Barlow's syndrome • Floppy valve syndrome • MVP

The mitral valve is one of the four valves in your heart. Heart valves have flaps that open and close. The flaps make sure that blood flows in the right direction through your heart and to the rest of your body. When your heart beats, the flaps open to let blood through. Between heartbeats, they close to stop the blood from flowing backwards. The mitral valve opens to let blood flow from your heart's upper left chamber to the lower left chamber. When the lower left chamber contracts (squeezes) to pump blood to your body, the mitral valve closes tightly to keep any blood from flowing backwards.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I48.8
Heart & Vascular

Mitral valve insufficiency

Also called: Mitral insufficiency

Mitral valve insufficiency—coded clinically as I34.0 across Heart & Vascular guidelines—combines cardiopulmonary biomarker stratification [Mitral valve insufficiency I34.0] with structured follow-up of Apolipoprotein B (ApoB) [Mitral valve insufficiency I34.0] (< 70 mg/dL (I34.0)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I34.0
Heart & Vascular

Myocardial degeneration

Myocardial degeneration (ICD-10-CM I51.5) 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 → I51.5
Heart & Vascular

Myocarditis

Myocarditis—coded clinically as I51.4 across Heart & Vascular guidelines—combines coronary perfusion imaging [Myocarditis I51.4] with structured follow-up of Apolipoprotein B (ApoB) [Myocarditis I51.4] (< 70 mg/dL (I51.4)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I51.4
Heart & Vascular

Non-ST elevation (NSTEMI) myocardial infarction

Non-ST elevation (NSTEMI) myocardial infarction—coded clinically as I21.4 across Heart & Vascular guidelines—combines transthoracic echocardiography [Non-ST elevation (NSTEMI) myocardial infarction I21.4] with structured follow-up of NT-proBNP [Non-ST elevation (NSTEMI) myocardial infarction I21.4] (< 100 pg/mL (I21.4)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I21.4
Heart & Vascular

Obstructive hypertrophic cardiomyopathy

Obstructive hypertrophic cardiomyopathy (ICD-10-CM I42.1) 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 → I42.1
Heart & Vascular

Old myocardial infarction

Designated in federal medical registries as I25.2, Old myocardial infarction falls under Heart & Vascular management, where coronary perfusion imaging [Old myocardial infarction I25.2] 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 → I25.2
Heart & Vascular

Organ Donation

Organ donation takes healthy organs and tissues from one person for transplantation into another. Experts say that the organs from one donor can save or help as many as 50 people. Organs you can donate include: Internal organs: Kidneys, heart, liver, pancreas, intestines, lungs Skin Bone and bone marrow Cornea Most organ and tissue donations occur after the donor has died. But some organs and tissues can be donated while the donor is alive. People of all ages and background can be organ donors. If you are under age 18, your parent or guardian must give you permission to become a donor. If you are 18 or older you can show you want to be a donor by signing a donor card.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I48.4
Heart & Vascular

Organ Transplantation

You may need an organ transplant if one of your organs has failed. This can happen because of illness or injury. When you have an organ transplant, doctors remove an organ from another person and place it in your body. The organ may come from a living donor or a donor who has died. The organs that can be transplanted include: Heart Intestine Kidney Liver Lung Pancreas You often have to wait a long time for an organ transplant. Doctors must match donors to recipients to reduce the risk of transplant rejection. Rejection happens when your immune system attacks the new organ.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I49.5
Heart & Vascular

Pacemakers and Implantable Defibrillators

An arrhythmia is any disorder of your heart rate or rhythm. It means that your heart beats too quickly, too slowly, or with an irregular pattern. Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). They are devices that are implanted in your chest or abdomen. A pacemaker helps control abnormal heart rhythms. It uses electrical pulses to prompt the heart to beat at a normal rate. It can speed up a slow heart rhythm, control a fast heart rhythm, and coordinate the chambers of the heart. An ICD monitors heart rhythms.

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

Paroxysmal atrial fibrillation

Paroxysmal atrial fibrillation—coded clinically as I48.0 across Heart & Vascular guidelines—combines cardiopulmonary biomarker stratification [Paroxysmal atrial fibrillation I48.0] with structured follow-up of Apolipoprotein B (ApoB) [Paroxysmal atrial fibrillation I48.0] (< 70 mg/dL (I48.0)).

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

Pericardial Disorders

Also called: Constrict • Constrictive

The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly. Problems with the pericardium include: Pericarditis - an inflammation of the sac. It can be from a virus or other infection, a heart attack, heart surgery, other medical conditions, injuries, and certain medicines. Pericardial effusion - the buildup of fluid in the sac Cardiac tamponade - a serious problem in which buildup of fluid in the sac causes problems with the function of the heart Symptoms of pericardial problems include chest pain, rapid heartbeat, and difficulty breathing. Fever is a common symptom of acute pericarditis.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I31.39
Heart & Vascular

Pericardial tamponade

Pericardial tamponade (ICD-10-CM I31.4) 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 → I31.4
Heart & Vascular

Permanent atrial fibrillation

Permanent atrial fibrillation (ICD-10-CM I48.21) 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 → I48.21
Heart & Vascular

Phlebosclerosis

Phlebosclerosis (ICD-10-CM I87.8) 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 → I87.8
Heart & Vascular

Polyarteritis

Polyarteritis—coded clinically as I77.6 across Heart & Vascular guidelines—combines 12-lead resting electrocardiography [Polyarteritis I77.6] with structured follow-up of NT-proBNP [Polyarteritis I77.6] (< 100 pg/mL (I77.6)).

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I77.6
Heart & Vascular

Premature ventricular contractions (PVC's)

Also called: Premature ventricular contractions • Precocious • Precocity

Premature ventricular contractions (PVC's) (ICD-10-CM I49.3) 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 → I49.3
Heart & Vascular

Prinzmetal's angina

Prinzmetal's angina (ICD-10-CM I20.1) 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 → I20.1
Heart & Vascular

Pulmonary valve disorder

Also called: Respiratory • Respiration • Breath

Pulmonary valve disorder (ICD-10-CM I37.9) 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 → I37.9
Heart & Vascular

Refractory angina pectoris

Refractory angina pectoris (ICD-10-CM I20.2) 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 → I20.2
Heart & Vascular

Rheumatic fever

Rheumatic fever (ICD-10-CM I00) 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 → I00
Heart & Vascular

ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery

ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery (ICD-10-CM I21.02) 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 → I21.02
Heart & Vascular

ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery

Designated in federal medical registries as I21.21, ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery falls under Heart & Vascular management, where ambulatory rhythm monitoring [ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery I21.21] 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 → I21.21
Heart & Vascular

ST elevation (STEMI) myocardial infarction involving left main coronary artery

ST elevation (STEMI) myocardial infarction involving left main coronary artery (ICD-10-CM I21.01) 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 → I21.01
Heart & Vascular

ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall

ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall (ICD-10-CM I21.09) 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 → I21.09
Heart & Vascular

ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall

ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall (ICD-10-CM I21.19) 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 → I21.19
Heart & Vascular

Shock

Shock happens when not enough blood and oxygen can get to your organs and tissues. It causes very low blood pressure and may be life-threatening. It often happens along with a serious injury. There are several kinds of shock. Hypovolemic shock happens when you lose a lot of blood or fluids. Causes include internal or external bleeding, dehydration, burns, and severe vomiting and/or diarrhea. Septic shock is caused by infections in the bloodstream. A severe allergic reaction can cause anaphylactic shock. An insect bite or sting might cause it. Cardiogenic shock happens when the heart cannot pump blood effectively. This may happen after a heart attack.

First-Line Fix: Evidence-based first-line medical therapy paired with targeted nutrition, sleep, and lifestyle habits
Read Guide → R57.9
Heart & Vascular

Sick sinus syndrome

Sick sinus syndrome (ICD-10-CM I49.5) 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 → I49.5
Heart & Vascular

Silent myocardial ischemia

Silent myocardial ischemia (ICD-10-CM I25.6) 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 → I25.6
Heart & Vascular

Sinoatrial block

Sinoatrial block (ICD-10-CM I45.5) 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 → I45.5
Heart & Vascular

Spider angioma

Spider angioma (ICD-10-CM I78.1) 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 → I78.1
Heart & Vascular

Stem Cells

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells. Stem cells are different from other cells in the body in three ways: They can divide and renew themselves over a long time They are unspecialized, so they cannot do specific functions in the body They have the potential to become specialized cells, such as muscle cells, blood cells, and brain cells Doctors and scientists are excited about stem cells because they could help in many different areas of health and medical research.

First-Line Fix: First-line cardiovascular risk reduction (sodium/potassium balance, Zone 2 exercise & guideline pharmacotherapy)
Read Guide → I49.7
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 →