2026 ICD-10-CM Diagnosis Code Q25.8Other congenital malformations of other great arteries

ICD-10-CM Codes›Q00-Q99›Q20-Q28›Q25

ICD-10-CM Q25.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q25.8 is a billable ICD-10-CM diagnosis code for other congenital malformations of other great arteries. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 306 through 307. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cardiac and circulatory congenital anomalies.

Code Identity

ICD-10-CM Code
Q25.8
Billable Status
Yes — Valid for Submission
Code Describes
Other congenital malformations of other great arteries
Short Description
Other congenital malformations of other great arteries
Same as the full description in the CMS dataset.
Parent Code
Q25
Congenital malformations of great arteries

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ20-Q28Congenital malformations of the circulatory system
CategoryQ25Congenital malformations of great arteries
This CodeQ25.8Other congenital malformations of other great arteries

Present on Admission (POA)Billing

Q25.8 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal intrapericardial course of great arteries
  • Abnormal origin of arterial duct
  • Anatomically corrected malposition with concordant ventriculoarterial connections and parallel great arteries
  • Anomalous insertion of arterial duct
  • Anomalous insertion of arterial duct into distal left pulmonary artery
  • Anomalous insertion of arterial duct into pulmonary trunk
  • Anomalous insertion of arterial duct into right pulmonary artery
  • Anomalous insertion of arterial duct into unknown site
  • Anomalous origin of arterial duct from aortic arch
  • Anomalous origin of arterial duct from aortic diverticulum
  • Anomalous origin of arterial duct from ascending aorta
  • Anomalous origin of arterial duct from distal descending aorta
  • Anomalous origin of arterial duct from left brachiocephalic artery
  • Anomalous origin of arterial duct from left carotid artery
  • Anomalous origin of arterial duct from right carotid artery
  • Anomalous origin of arterial duct from right subclavian artery
  • Anomalous origin of left arterial duct from right aortic arch
  • Anomalous origin of right arterial duct from right aortic arch
  • Anomalous separate origins of internal carotid arteries and external carotid arteries from single aortic arch
  • Arterial duct from innominate artery
  • Arterial duct from left subclavian artery
  • Bilateral arterial duct
  • Bilateral arterial duct with patent left arterial duct and closed right arterial duct
  • Bilateral closed arterial ducts
  • Bilateral ductus arteriosus with closed left ductus arteriosus and patent right ductus arteriosus
  • Compression of trachea
  • Concordant ventriculoarterial connections
  • Congenital abnormality of arterial duct
  • Congenital hypoplasia of right side of chest
  • Congenital malposition of innominate artery
  • Congenital short growth of innominate artery
  • Distal origin of brachiocephalic trunk
  • Ductus arteriosus from retro-esophageal aortic diverticulum
  • Ductus arteriosus from subclavian artery
  • Innominate artery compression syndrome
  • Origin of innominate artery from left side of aortic arch
  • Parallel course of aorta and pulmonary artery
  • Right arterial duct
  • Subaortic course of innominate vein
  • Vascular ring due to aberrant subclavian artery and bilateral arterial ducts
  • Vascular ring with left aortic arch and right arterial duct arising from aberrant retroesophageal innominate artery
  • Vascular ring with malrotation and dextroversion of heart and hypoplasia of right lung and left arterial duct
  • Vascular ring with retrotracheal right pulmonary artery from ascending aorta
  • Vascular ring with right aortic arch and left arterial duct from retroesophageal diverticulum of aorta

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Anomaly, anomalous(congenital) (unspecified type)
      • artery (peripheral)
        • great
          • specified NEC
    • Anomaly, anomalous(congenital) (unspecified type)
      • origin
        • artery
          • innominate
    • Malformation(congenital)
      • great
        • artery
          • specified type NEC
    • Ring(s)
      • vascular (congenital)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL001
Cardiac and circulatory congenital anomalies
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

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.

The full article covers:

  • What are congenital heart defects?
  • What causes congenital heart defects?
  • Who is more likely to have a baby with a congenital heart defect?
  • What are the symptoms of congenital heart defects?
  • What other problems do congenital heart defects cause?
  • How are congenital heart defects diagnosed?
  • What are the treatments for congenital heart defects?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q25.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
747.29 Cong anom of aorta NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q25.8Overview

Is Q25.8 (Congenital malformations of great arteries) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other congenital malformations of other great arteries on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q25.8 group to?

When other congenital malformations of other great arteries is the principal diagnosis on an inpatient stay, it groups to MS-DRG 306, 307, with relative weights from 0.9132 to 1.5758 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q25.8 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other congenital malformations of other great arteries on inpatient claims.

What is the ICD-9 equivalent of Q25.8?

Under the General Equivalence Mappings, other congenital malformations of other great arteries converts to ICD-9-CM 747.29 (cong anom of aorta NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.