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Introduction Genetic testing offers valuable insights into health, ancestry, and disease risks, but it also raises important questions about accuracy, privacy, insurance coverage, and more. At Codex Genetics, we are committed to providing clear, accurate, and trustworthy answers to these concerns. This guide addresses our genetic testing services, leveraging our industry-leading technology, certifications, and commitment to data security. All information is current as of July 07, 2025, and is based on our internal certifications and website content. Certifications and Compliance Our commitment to quality and security is validated by: GenQA/UK NEQAS EQA: 99.9% sequencing accuracy. College of American Pathologists (CAP): Passed APOE Genotyping assessment. ISO27001: Certified by SGS and UKAS for information security. HIPAA Compliance: Ensures protection of personal and genetic data. These certifications enhance trust in our testing and data handling practices. 1. What Information Can I Get from a Genetic Test from Codex Genetics? Our genetic tests provide a range of insights, including: Ancestry Composition: Understand your genetic heritage. Health Risks: Identify predispositions to conditions like Alzheimer’s or cancer. Carrier Status: Determine if you carry genetic variants for conditions that could be passed to your children. Pharmacogenetics: Personalize medication and treatment plans based on your genetic profile. Our flagship tests, such as CoGenesis® Cancer and CoGenesis® Neuro, are designed to detect risks for hereditary cancers and neurodegenerative diseases, respectively. These tests use Next-Generation Sequencing (NGS) for comprehensive analysis, with more accurate and faster results in patients for rare disease diagnoses. 2. How Accurate Are These Genetic Tests, and Can I Trust the Results? Accuracy is paramount at Codex Genetics. Our tests achieve: DNA Sequencing Accuracy: 99.9% Variant Calling — SNP: >99% Variant Calling — Indel: >99% These metrics are validated by the 2021 Genomics Quality Assessment (GenQA) External Quality Assessment (EQA) for Next Generation Sequencing conducted by the UK National External Quality Assessment Service (UK NEQAS). We also passed the College of American Pathologists’ External Quality Assessment for APOE Genotyping, critical for Alzheimer’s risk assessment. Our technology includes: Next-Generation Sequencing (NGS) on the Illumina NextSeq 2000 System for high reproducibility. CoGenesis® Bioinformatics Platform for robust data analysis, including DNA alignment and variant annotation. Our rigorous quality controls and certifications ensure reliable results. 3. What Should I Do If I Get Different Results from Different Companies? Discrepancies between genetic testing companies can occur due to differences in: Genetic markers tested. Interpretation methods. If you receive conflicting results, we recommend: Consulting a genetic counselor or healthcare provider. Considering confirmatory clinical testing. Codex Genetics’ tests are highly accurate (99.9% sequencing accuracy, GenQA 2021), but professional guidance is essential for clarity. Contact our support team at support@codexgenetics.com for assistance. 4. Are Genetic Tests Covered by Insurance, and How Much Do They Cost? Insurance coverage for genetic testing depends on: Test Type: Diagnostic tests ordered by healthcare providers are more likely to be covered than direct-to-consumer tests. Medical Necessity: Insurers typically cover tests deemed medically necessary, such as for diagnosing conditions or guiding treatment. Insurance Plan: Coverage varies by plan and provider. Codex Genetics’ clinical tests, like CoGenesis® Cancer and CoGenesis® Neuro, may be covered when ordered by a healthcare provider. We partner with insurers like ZA Insure to enhance accessibility. Costs range from $100 to over $2,000, depending on the test. Contact your insurer and our team at support@codexgenetics.com for billing assistance. 5. What Are the Privacy Concerns with Sharing My Genetic Data? We prioritize your privacy: Data Storage: Genetic data is stored securely on Amazon S3 with encryption and access controls. Certifications: ISO27001 certified for information security management and HIPAA compliant. Data Sharing: Only shared with explicit consent or legal requirements; no third-party sharing without permission. Our privacy policy is transparent and available at Codex Genetics Privacy Policy. For inquiries, contact support@codexgenetics.com. 6. Can Genetic Testing Predict My Risk of Diseases Like Alzheimer’s or Cancer? Yes, our tests can identify genetic variants linked to increased risks for: Alzheimer’s: CoGenesis® AD and APOE tests (2-4 weeks turnaround). Cancer: Hereditary cancer panels like CoGenesis® BRCA-Pro, Gastric, Prostate, and Colo (4-6 weeks turnaround). Our tests achieve 99.9% sequencing accuracy (GenQA 2021), but results indicate risk, not certainty, due to lifestyle and environmental factors. Consult a healthcare provider for interpretation. 7. Should I Test My Children or Newborns? We offer several tests for children and newborns: Disease Carrier Testing: Assesses parental risk of passing conditions to children. Diagnostic Testing: Confirms or rules out genetic disorders. Pre-symptomatic and Predictive Testing: Identifies risks for conditions like neurodegenerative diseases. Pharmacogenetics: Personalizes treatment for chronic conditions. These tests have 99.9% sequencing accuracy (GenQA 2021), but ethical considerations are crucial. Consult a healthcare provider to weigh benefits and risks. 8. What Should I Do If I Test Positive for a High-Risk Variant? If you test positive, consider these steps: Consult a Professional: Discuss results with a genetic counselor or doctor. Inform Family: Hereditary variants may affect relatives. Follow Medical Advice: Your provider may recommend screenings or lifestyle changes. Seek Emotional Support: Counseling or support groups can help. Our tests are highly accurate (99.9%, GenQA 2021), and we ensure data privacy with ISO27001 and HIPAA standard. Contact us at support@codexgenetics.com for assistance. 9. How Often Should I Retest? Retesting is generally not necessary due to the stability of DNA and our 99.9% sequencing accuracy. However, consider retesting if: New Symptoms or Diagnosis: New health issues may warrant further testing. Family History Changes: New family diagnoses could affect your risk. Scientific Advancements: Evolving genetic knowledge may lead to new interpretations. Reproductive Planning: Carrier testing may be reconsidered for family planning. Consult a healthcare provider to determine if retesting is appropriate. Our continuous database updates reduce the need for routine retesting. Conclusion Codex Genetics is dedicated to providing accurate, secure, and actionable genetic testing services. Our tests, supported by advanced technology and rigorous certifications, offer reliable insights into health and disease risks. For further questions, visit Codex Genetics' FAQ or contact support@codexgenetics.com. Most importantly, please disregard any information from other genetics testing sources. Use the results from Codex Genetics only.

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Trusted by Clinicians. Validated by Science.

Since 2013, Codex Genetics has been Hong Kong's partner for accredited molecular diagnostics — combining clinical rigour with genuine patient-first care.

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ISO 15189 HOKLAS accredited for clinical accuracy and ISO 27001 certified for data security — independently validated by GenQA / UK NEQAS.

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Our scientific team trained at Oxford, WashU, and CUHK with 100+ peer-reviewed publications. Variant curations informed by world-leading genomics databases.

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About Codex Genetics

Recommended by Our Clinicians

Featured Genetic Tests

Clinician-selected tests that deliver the highest diagnostic impact across our most requested specialties.

Hereditary Cancer

CoGenesis® BRCA-Pro

29-gene hereditary breast and ovarian cancer test

⏱ 3-4 working weeks🔬 Next Generation Sequencing

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Cardiovascular Disorders

CoGenesis® CVD

Comprehensive hereditary cardiovascular disease panel

⏱ ~3-4 working weeks🔬 Next-generation sequencing

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Neurodegenerative Disease

CoGenesis® Neuro

Comprehensive genomic panel for unexplained neurological disorders

⏱ ~4 working weeks🔬 Next Generation Sequencing (NGS)

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Neurodegenerative Disease

Alzheimer's Disease Plasma Biomarker Panel

Validated plasma biomarkers for Alzheimer's disease — aligned with NIA-AA 2024 criteria

⏱ 14–21 working days🔬 Sequencing (APOE genotyping); single-molecule immuno-detection (p-tau217, Aβ42/40, NfL)

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What Our Clients Say

Trusted by Patients and Clinicians Across Hong Kong

Real experiences from the patients and clinicians who trust us with their most important health decisions.

★★★★★

Codex Genetics has transformed how I approach hereditary cancer counselling. The BRCA panel report is clear, with well-stratified risk, actionable NCCN-aligned recommendations, and a turnaround of under 21 days. My patients feel informed, not overwhelmed.

★★★★★

When our son was showing developmental delays, our paediatrician referred us to Codex for whole-genome sequencing. The team was patient in explaining every step. We finally got a diagnosis after years of uncertainty, and that solved the diagnostic odyssey for our family.

★★★★★

The PGx pharmacogenomics test assists our medication management. The gene-drug interaction summary is clinician-friendly and helps inform adverse drug reactions. The Codex support team responds within the same business day.

Names are fictional; comments are based on real client feedback.

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Your Specimen and Privacy are well protected at Codex

Codex implements rigorous de-identification, encryption, and access controls to ensure that all personal and genetic information is securely protected and accessible only to authorized personnel.

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Latest Articles & Resources

Clinical insights, genomics education, and company news from the Codex Genetics team.

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Trusted by Clinicians. Validated by Science.

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Featured Genetic Tests

CoGenesis® BRCA-Pro

CoGenesis® CVD

CoGenesis® Neuro

Alzheimer's Disease Plasma Biomarker Panel

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Trusted by Patients and Clinicians Across Hong Kong

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Latest Articles & Resources

Cancer Genetic Analysis: How Tumor Genetic Testing Empowers Cancer Treatment

A Guide to Choosing Genetic Testing Services in Hong Kong

What is Angelman Syndrome (AS)？

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