AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2025 Issue 4; New/Revised ICD-10-CM Codes
Genetic Disorders, Not Elsewhere Classified (QA0)
A new section has been created to identify genetic disorders that are not elsewhere classified with codes created at new category QA0, Neurodevelopmental disorders related to specific genetic pathogenic variants, as follows:QA0.01 Neurodevelopmental disorders related to pathogenic variants in certain specific genes QA0.010 Neurodevelopmental disorders, related to pathogenic variants in ion channel genes QA0.0101 SCN2A-related neurodevelopmental disorder QA0.0102 CACNA1A-related neurodevelopmental disorder QA0.0109 Neurodevelopmental disorder related to pathogenic variant in other ion channel gene QA0.011 Neurodevelopmental disorders, related to pathogenic variants in glutamate receptor genes QA0.012 Neurodevelopmental...
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Article Overview
This article explains a newly created classification area for genetic and neurodevelopmental disorders associated with specific pathogenic variants. It is intended for coding professionals, clinical documentation teams, and others who need to understand the scope of the new category, its substructure, and the kinds of conditions it is meant to capture. The article provides a broad overview of the disorder group and the organization of the related code family.
Why This Topic Matters
Accurate recognition and classification of genetically associated neurodevelopmental disorders supports consistent documentation, reporting, and analysis. The topic is relevant to coders and clinical staff working with inherited or variant-associated developmental conditions.
Article Sections
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QA0 new category and subcategory structure
Introduces the new classification area and presents the hierarchical organization of the related subcategories and code groups.
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Overview of neurodevelopmental disorders and genetic basis
Summarizes the broader clinical context for these disorders and notes the general types of associated findings and conditions described in the article.
What You Will Learn
- How the new classification area is organized
- What broad disorder group the article addresses
- Which general categories of genetic associations are included
- Why the new classification area may be useful for documentation and analysis
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Health information management professionals
- Clinicians documenting genetic and developmental disorders
Codes Discussed
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