I27.83 – Eisenmenger's syndrome

ICD-10-CM 2027 diagnosis code · Pulmonary heart disease and diseases of pulmonary circulation

Billable code

ICD-10-CM code I27.83

Code: I27.83 (claims format: I2783)
Description: Eisenmenger's syndrome
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I26-I28 Pulmonary heart disease and diseases of pulmonary circulation
Parent codes: I27 › I27.8

Notes for I27.83

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)

Index terms for I27.83

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in I27.8

I27.81 – Cor pulmonale (chronic)Billable
I27.82 – Chronic pulmonary embolismBillable
I27.84 – Fontan related circulationHeader
I27.89 – Other specified pulmonary heart diseasesBillable

Frequently asked questions

What is ICD-10 code I27.83?

I27.83 is the ICD-10-CM code for eisenmenger's syndrome, in the block I26-I28 (Pulmonary heart disease and diseases of pulmonary circulation).

Is I27.83 a billable code?

Yes. I27.83 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I27.83 belong to?

It belongs to category I27 – Other pulmonary heart diseases.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.