ICD-10-CM
ICD-10 code for Eisenmenger's complex or syndrome: I27.83
The ICD-10-CM index points "Eisenmenger's complex or syndrome" to I27.83, Eisenmenger's syndrome. I27.83 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in I27
A header groups codes and is not billed. A billable code is one you can report.
- I27Other pulmonary heart diseasesHeader
- I27.0Primary pulmonary hypertensionBillable
- I27.1Kyphoscoliotic heart diseaseBillable
- I27.2Other secondary pulmonary hypertensionHeader
- I27.20Pulmonary hypertension, unspecifiedBillable
- I27.21Secondary pulmonary arterial hypertensionBillable
- I27.22Pulmonary hypertension due to left heart diseaseBillable
- I27.23Pulmonary hypertension due to lung diseases and hypoxiaBillable
- I27.24Chronic thromboembolic pulmonary hypertensionBillable
- I27.29Other secondary pulmonary hypertensionBillable
- I27.8Other specified pulmonary heart diseasesHeader
- I27.81Cor pulmonale (chronic)Billable
- I27.82Chronic pulmonary embolismBillable
- I27.83Eisenmenger's syndromeBillable
- I27.84Fontan related circulationHeader
- I27.840Fontan-associated liver disease [FALD]Billable
- I27.841Fontan-associated lymphatic dysfunctionBillable
- I27.848Other Fontan-associated conditionBillable
- I27.849Fontan related circulation, unspecifiedBillable
- I27.89Other specified pulmonary heart diseasesBillable
- I27.9Pulmonary heart disease, unspecifiedBillable
Code also
The CDC tabular list says a second code may be needed with this one. The note does not set which is listed first.
Code also underlying heart defect, if known, such as:
Related conditions
Related pages
- I27.83 code detailsNotes, nearby codes, CMS-HCC group
- Category I27Every code under it
- Chapter 9Diseases of the circulatory system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Eisenmenger's complex or syndrome?
The ICD-10-CM index points "Eisenmenger's complex or syndrome" to I27.83, Eisenmenger's syndrome. I27.83 is a billable code.
Is I27.83 billable?
Yes. I27.83 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is I27.83 in?
Chapter 9. Diseases of the circulatory system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.