Congenital malformations of great arteries
In Congenital malformations of the circulatory system (Q20-Q28), chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities
22 billable codes under Q25: 5 are an MCC, 17 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Assign Q00-QA1 codes for documented congenital anomalies or genetic disorders at any age, coding non-inherent manifestations separately and sequencing Z38 first on the birth admission.
All codes under Q25
Q25 can't be used on a claim. Pick a billable code below; grey headings group them.
- Q25.0Patent ductus arteriosus
- Q25.1Coarctation of aorta
- Q25.2Atresia of aorta
- Q25.21Interruption of aortic arch
- Q25.29Other atresia of aorta
- Q25.3Supravalvular aortic stenosis
- Q25.4Other congenital malformations of aorta
- Q25.40Congenital malformation of aorta unspecified
- Q25.41Absence and aplasia of aorta
- Q25.42Hypoplasia of aorta
- Q25.43Congenital aneurysm of aorta
- Q25.44Congenital dilation of aorta
- Q25.45Double aortic arch
- Q25.46Tortuous aortic arch
- Q25.47Right aortic arch
- Q25.48Anomalous origin of subclavian artery
- Q25.49Other congenital malformations of aorta
- Q25.5Atresia of pulmonary artery
- Q25.6Stenosis of pulmonary artery
- Q25.7Other congenital malformations of pulmonary artery
- Q25.71Coarctation of pulmonary artery
- Q25.72Congenital pulmonary arteriovenous malformation
- Q25.79Other congenital malformations of pulmonary artery
- Q25.8Other congenital malformations of other great arteries
- Q25.9Congenital malformation of great arteries, unspecified
Q25 MS-DRGs
As the principal diagnosis, all 22 billable codes under Q25 group to MS-DRG 306 or 307 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Congenital Heart Defects
Congenital heart defects (CHDs) are problems with the structure of the heart. "Congenital" means that that the problems are present at birth. These defects happen when a fetus's heart doesn't develop normally during pregnancy. Congenital heart defects are the most common type of birth defect.
Read more about congenital heart defects on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.