Short answer · Medically reviewed summary · Last updated: 2026-05-08
Eisenmenger Syndrome is classified under the ICD-10-CM code I27.83, while the corresponding historical ICD-9-CM code is 745.8. These codes are essential for medical billing, insurance authorization, and clinical documentation for patients managing the long-term effects of this complex cardiovascular condition. What is the clinical definition of Eisenmenger Syndrome? Eisenmenger Syndrome represents the end-stage of pulmonary arterial hypertension associated with a pre-existing congenital heart defect, such as a ventricular septal defect or patent ductus arteriosus.
ICD10 code of Eisenmenger Syndrome and ICD9 code
ICD-10 and ICD-9 codes for Eisenmenger Syndrome, with classification details for clinicians, coders and patients.
Eisenmenger Syndrome is classified under the ICD-10-CM code I27.83, while the corresponding historical ICD-9-CM code is 745.8. These codes are essential for medical billing, insurance authorization, and clinical documentation for patients managing the long-term effects of this complex cardiovascular condition.
What is the clinical definition of Eisenmenger Syndrome?
Eisenmenger Syndrome represents the end-stage of pulmonary arterial hypertension associated with a pre-existing congenital heart defect, such as a ventricular septal defect or patent ductus arteriosus. In this condition, a left-to-right shunt gradually reverses due to increased pulmonary vascular resistance, resulting in systemic cyanosis. Because Eisenmenger Syndrome involves complex systemic physiology, accurate coding is vital for coordinating multidisciplinary care.
How does Eisenmenger Syndrome affect the body?
Patients living with Eisenmenger Syndrome often face significant systemic challenges beyond the heart. The reduction in oxygen saturation leads to a variety of symptoms that require specialized management. Common clinical features include:
- Cyanosis: A bluish tint to the skin, lips, and nail beds due to low oxygen levels.
- Polycythemia: An overproduction of red blood cells as the body attempts to compensate for chronic hypoxemia.
- Clubbing: Characteristic rounding of the fingertips and toes.
- Fatigue and Dyspnea: Marked exercise intolerance and shortness of breath during routine activities.
Is there a community for those with Eisenmenger Syndrome?
Navigating the complexities of Eisenmenger Syndrome can feel isolating, but you are not alone. Currently, 18 people with Eisenmenger Syndrome have joined the DiseaseMaps.org community to share their personal experiences and coping strategies. Connecting with peers who understand the specific challenges of this diagnosis can provide both emotional support and practical insights into daily management.
Next steps
- Consult with an adult congenital heart disease (ACHD) specialist to manage your specific cardiovascular profile.
- Register on DiseaseMaps.org to connect with other patients living with Eisenmenger Syndrome.
- Ensure your medical records correctly reflect the I27.83 code to facilitate appropriate specialist referrals.
- Discuss specialized pulmonary hypertension therapies with your cardiology team to optimize your quality of life.
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the guidance of a qualified healthcare provider regarding your specific medical condition.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Eisenmenger Syndrome overview.
- Orphanet: Rare disease database entry for Eisenmenger Syndrome.
- ICD-10-CM Browser (CMS.gov): Official classification for I27.83.
- Adult Congenital Heart Association (ACHA): Patient resources and clinical guidelines.
