05.01.02 – Atrial septal defect within oval fossa

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IPCCC Term ATRIAL SEPTAL DEFECT WITHIN OVAL FOSSA

IPCCC Code 05.01.02

ICD-11 Code PENDING

Synonyms PENDING

Abbreviations PENDING

IPCCC Definition A congenital cardiac malformation in which there is an interatrial communication confined to the region of the oval fossa (fossa ovalis), most commonly due to a deficiency of the primary atrial septum (septum primum) but deficiency of the septum secundum (superior interatrial fold) may also contribute.

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05-04-02 The anterior wall of the right atrial appendage has been incised and folded away revealing an interatrial communication (atrial septal defect) secondary to a deficiency in the floor of the oval fossa or primary atrial septum (septum primum).

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