ICD-10-CM Q26.8: Other congenital malformations of great veins

ICD-10-CM Diagnosis Code (2025)

Official Description for Q26.8

Other congenital malformations of great veins

Coding Notes & Guidelines for Q26.8

Inclusion Terms
  • Absence of vena cava (inferior) (superior)
  • Azygos continuation of inferior vena cava
  • Persistent left posterior cardinal vein
  • Scimitar syndrome

Parent Code (Less Specific):

About ICD-10-CM Code Q26.8 (Other congenital malformations of great veins)

ICD-10-CM code Q26.8 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Q26.8 became effective on October 1, 2024.

This page provides detailed information about Q26.8 - Other congenital malformations of great veins. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other congenital malformations of great veins.