10ICD Code Hub

I27.83

Billable code

Eisenmenger's syndrome

The ICD-10 code for eisenmenger's syndrome is I27.83.

Clinical notes

Code also

Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.

  • underlying heart defect, if known, such as:
  • atrial septal defect (Q21.1-)
  • Eisenmenger's defect (Q21.8)
  • patent ductus arteriosus (Q25.0)
  • ventricular septal defect (Q21.0)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

  • Eisenmenger's complex
  • (Irreversible) Eisenmenger's disease
  • Pulmonary hypertension with right to left shunt related to congenital heart disease

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Related codes in this category

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

I27.83 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.