Congenital Atrial Septal and Atrioventricular Septal Defect and Patent Foramen Ovale

Two new subcategories with specific codes to identify different types of atrial septal and atrioventricular septal defects, as well as a unique code for patent foramen ovale have been created. The new codes are as follows: Q21.10, Atrial septal defect, unspecified Q21.11, Secundum atrial septal defect  Q21.12, Patent foramen ovale Q21.13, Coronary sinus atrial septal defect Q21.14, Superior sinus venosus atrial septal defect Q21.15, Inferior sinus venosus atrial septal defect Q21.16, Sinus venosus atrial septal defect, unspecified Q21.19, Other specified atrial septal defect Q21.20, Atrioventricular septal defect, unspecified as to...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article explains a coding update involving congenital heart anomalies and the introduction of more specific ICD-10-CM diagnosis options. It is intended for coders, clinical documentation staff, and quality or surveillance professionals who track congenital conditions and related data quality changes. The article covers the broad clinical context for atrial septal and atrioventricular septal defects, the distinction between related congenital heart findings, and the reason the update matters for surveillance and research.

Why This Topic Matters

The update affects how congenital heart anomalies are categorized in diagnosis reporting and supports clearer tracking for research, surveillance, and documentation accuracy.

Article Sections

  1. New diagnosis subcategories

    Introduces a group of newly created ICD-10-CM diagnosis options for congenital atrial septal and atrioventricular septal conditions, along with related classification changes.

  2. Clinical context for ASD and AVSD

    Summarizes the general congenital heart anatomy and the broad distinctions between the defect categories discussed in the update.

  3. Why the update matters

    Explains the broader documentation and data-quality motivation for separating related congenital heart findings in reporting and surveillance.

What You Will Learn

  • What types of congenital heart conditions are addressed by the update
  • How the article frames the broader clinical context for septal defects
  • Why more specific diagnosis categories are important for reporting and surveillance
  • What general kinds of coding changes are discussed in the article

Who Should Read This

  • Medical coders
  • Clinical documentation specialists
  • Quality reporting staff
  • Congenital disease surveillance professionals
  • Health information management professionals

Codes Discussed

  • ICD-10-CM: Q21.10
  • ICD-10-CM: Q21.11
  • ICD-10-CM: Q21.12
  • ICD-10-CM: Q21.13
  • ICD-10-CM: Q21.14
  • ICD-10-CM: Q21.15
  • ICD-10-CM: Q21.16
  • ICD-10-CM: Q21.19
  • ICD-10-CM: Q21.20
  • ICD-10-CM: Q21.21
  • ICD-10-CM: Q21.22
  • ICD-10-CM: Q21.23

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