`I27.83` Eisenmenger's syndrome

Billable ICD-10-CM code, FY2026.

Applicable to

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

Code also

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)

Risk adjustment (HCC)

CMS-HCC V28: HCC 226 — Heart Failure, Except End-Stage and Acute
CMS-HCC V22: HCC 85 — Congestive Heart Failure
RxHCC V08: HCC 183 — Pulmonary Arterial Hypertension
ESRD V24: HCC 85

MS-DRG index

Defines the logic of DRG(s) 314-316 in MDC 05.

Approximate ICD-9-CM (GEMs)

745.4 Ventricular septal defect (approximate)

Code annotations containing back-references to I27.83

Back-references to I27.83

Type 1 Excludes: I27.2 Other secondary pulmonary hypertension ("Eisenmenger's syndrome (I27.83)")
Code Also: Q21.8 Other congenital malformations of cardiac septa ("Eisenmenger's complex (I27.83)")
Code Also: Q21.8 Other congenital malformations of cardiac septa ("Eisenmenger's syndrome (I27.83)")

Diagnosis Index entries for I27.83

Complex › Eisenmenger's (ventricular septal defect)
Disease, diseased › Eisenmenger's (irreversible)
Eisenmenger's › complex or syndrome
Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › pulmonary › with › right to left shunt related to congenital heart disease
Syndrome › Eisenmenger's

Nearby codes

I27.24 Chronic thromboembolic pulmonary hypertension
I27.29 Other secondary pulmonary hypertension
I27.8 Other specified pulmonary heart diseases
I27.81 Cor pulmonale (chronic)
I27.82 Chronic pulmonary embolism
I27.83 Eisenmenger's syndrome (this code)
I27.84 Fontan related circulation
I27.840 Fontan-associated liver disease [FALD]
I27.841 Fontan-associated lymphatic dysfunction
I27.848 Other Fontan-associated condition
I27.849 Fontan related circulation, unspecified