Oth congenital malform of cardiac chambers and connections

This code represents various congenital structural abnormalities of the heart's chambers or the great vessels connecting to them, which are not classified elsewhere. These malformations involve atypical development of the atria, ventricles, or their connections, leading to impaired cardiac function.

Use this code for documented congenital heart defects such as double outlet right ventricle (DORV) without specific ventricular septal defect (VSD) morphology, corrected transposition of the great arteries (cTGA) without other specified anomalies, or other complex chamber/connection anomalies not having a more specific ICD-10-CM code. Documentation should clearly state the specific congenital malformation of the cardiac chambers or connections.

• Do not use this code if a more specific code exists for the documented congenital heart defect (e.g., specific types of VSD, ASD, or Tetralogy of Fallot).
• Always review the full clinical documentation, including echocardiogram reports and cardiologist notes, to ensure the most precise code is selected.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when it is a co-morbidity impacting care.