Abnormal Cardiovascular System Morphology C4049796
Structural abnormalities of the heart or blood vessels, either present from birth or acquired later. Careful evaluation helps determine appropriate care.
Key facts at a glance
- ICD-10
- I78.0
- ICD-11
- BA00.0
- Body system
- cardiovascular
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Chest pain or discomfort
Pain, pressure, tightness, or squeezing sensation in the chest that may radiate to the arm, jaw, or back.
Seek immediate medical attention if chest pain is severe, crushing, or accompanied by shortness of breath, sweating, or nausea.
Syncope (fainting)
Temporary loss of consciousness due to inadequate blood flow to the brain, often preceded by warning signs.
Seek emergency care immediately after any fainting episode, especially if accompanied by seizure or chest pain.
Cyanosis
Bluish discoloration of the skin, lips, or nail beds due to insufficient oxygen in the blood.
Seek emergency medical care immediately if cyanosis develops suddenly or is accompanied by difficulty breathing.
Shortness of breath
(respiratory)Difficulty breathing or feeling winded, especially during physical activity or when lying flat.
Frequency: 65-80% of patients
Heart palpitations
(cardiovascular)Awareness of rapid, irregular, or forceful heartbeat that may feel like fluttering or pounding in the chest.
Frequency: 50-70% of patients
Unexplained fatigue
(constitutional)Persistent tiredness or lack of energy that interferes with daily activities and does not improve with rest.
Frequency: 40-60% of patients
Dizziness or lightheadedness
(neurologic)Feeling faint, unsteady, or like the room is spinning, often occurring when standing up quickly.
Frequency: 35-50% of patients
Peripheral edema
(cardiovascular)Swelling in the legs, ankles, feet, or abdomen due to fluid buildup from impaired heart function.
Frequency: 30-45% of patients
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Medication Comparisons
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy