Neurodevelopmental disorders related to specific genetic pathogenic variants (QA0) ICD-10-CM
The QA0 code range covers neurodevelopmental disorders related to specific genetic pathogenic variants with 20 ICD-10-CM diagnosis codes. 13 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
Codes in the QA0 Range 20 codes · 13 billable
- QA0 Neurodevelopmental disorders related to specific genetic pathogenic variantsNon-billable
- QA0.0 Neurodevelopmental disorders related to pathogenic variants in specific genesNon-billable
- QA0.01 Neurodevelopmental disorders related to pathogenic variants in certain specific genesNon-billable
- QA0.010 Neurodevelopmental disorders, related to pathogenic variants in ion channel genesNon-billable
- 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 disorders, related to pathogenic variants in other receptor genes
- QA0.013 Neurodevelopmental disorders, related to pathogenic variants in other transporter and solute carrier genesNon-billable
- QA0.0131 SLC6A1-related disorder
- QA0.0139 Neurodevelopmental disorder, related to pathogenic variant in other transporter or solute carrier gene
- QA0.014 Neurodevelopmental disorders, related to pathogenic variants in synapse related genesNon-billable
- QA0.0141 Syntaxin-binding protein 1-related disorder
- QA0.0142 DLG4-related synaptopathy
- QA0.0149 Neurodevelopmental disorder, related to pathogenic variant in other synapse related gene
- QA0.015 Neurodevelopmental disorders, related to genes associated with transcription and gene expressionNon-billable
- QA0.0151 FOXG1 syndrome
- QA0.0159 Neurodevelopmental disorder, related to other genes associated with transcription and gene expression
- QA0.8 Other neurodevelopmental disorders related to pathogenic variants in other specific genes
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the QA0 range.
Neurodevelopmental Disorders
These are a group of conditions with onset in the developmental period. The disorders typically manifest early in development, often before the child enters grade school, and are characterized by developmental deficits that produce impairments of personal, social, academic, or occupational functioning. (From DSM-5).
About the QA0 Code Range
These disorders affect nervous system development and are related to disease-causing changes in specific genes.
QA0.0 groups disorders by the genes involved. Its subdivisions distinguish ion channel genes, receptor genes, transporter and solute carrier genes, synapse-related genes, and genes associated with gene expression. Some subdivisions name a particular gene-related disorder, such as QA0.0101, while others specify another gene within the group. QA0.8 covers disorders related to pathogenic variants in other specific genes.
Questions About This Page
How many billable codes are in the QA0 range?
Of the 20 codes in this range, 13 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the QA0 range classify?
The range classifies neurodevelopmental disorders related to specific genetic pathogenic variants. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
