Medical Disclaimer
genoCDS is a clinical reference tool for qualified healthcare professionals only. Content is derived from published guidelines and regulatory sources and may contain errors or outdated information. It is not a substitute for professional medical judgment, institutional protocols, or individual patient assessment. Always verify recommendations against current primary sources before making clinical decisions. Full disclaimer →
Stage Stage IVB
Multiple extrathoracic metastases in one or more organs. Widely metastatic disease.
3 test recommendations across 1 clinical indication
Stage IVB widely metastatic HR+/HER2−. All actionable biomarkers required.
Required — 3 tests
Comprehensive Solid Tumor NGS Panel
Comprehensive NGS
Next-generation sequencing panel covering ≥300 cancer-relevant genes, including all major NSCLC drivers (EGFR, ALK, ROS1, BRAF, KRAS, MET, RET, NTRK, HER2, FGFR), plus tumor mutational burden (TMB) and microsatellite instability (MSI). Examples include FoundationOne CDx, Tempus xT, Caris MI Transcriptome, and equivalent institutional panels. Preferred over single-gene sequential testing for efficiency and cost-effectiveness.
Specimen
PIK3CA Mutation Analysis
PIK3CA
Hotspot mutation analysis of PIK3CA (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) identifying the 11 most common activating mutations (exon 9: E542K, E545A/D/G/K, Q546E/K; exon 20: H1047L/R/Y). PIK3CA mutations occur in ~40% of HR+/HER2− metastatic breast cancer. FDA-approved companion diagnostic (therascreen PIK3CA RGQ PCR Kit) for alpelisib (Piqray) + fulvestrant per SOLAR-1 trial. OncoKB Level 1.
Specimen
BRCA1/BRCA2 Germline Testing
BRCA1/2 Germline
Full sequence analysis and large rearrangement detection of BRCA1 and BRCA2 germline DNA in peripheral blood. Germline BRCA1/2 pathogenic variants found in ~5–7% of unselected breast cancer; up to 15–20% in TNBC. Eligibility criterion for PARP inhibitor therapy: olaparib (Lynparza, OLYMPIAD trial, FDA-approved 2018) and talazoparib (Talzenna, EMBRACA trial, FDA-approved 2018) for HER2− metastatic breast cancer. Also establishes hereditary risk for first-degree relatives. NCCN recommends germline testing for all metastatic breast cancer patients.
Specimen
Payer Coverage
Payer Coverage Summary
Coverage status as of last policy review. Prior authorization requirements and coverage criteria may change. Verify directly with each payer before ordering.
| Test | Medicare (CMS) | UnitedHealth | Anthem BCBS | Humana | Cigna | Aetna |
|---|---|---|---|---|---|---|
| Comprehensive NGS | Covered | Covered | Covered | Prior Auth | Covered | Covered |
| PIK3CA | Covered | Covered | Covered | Unknown | Prior Auth | Covered |
| BRCA1/2 Germline | Covered | Covered | Covered | Covered | Covered | Covered |
Coverage data last verified via automated policy research. Always confirm current policies with each payer.
Recommendations on this page are derived from publicly available guidelines (NCCN, ASCO, ESMO, FDA, OncoKB) and are paraphrased for reference. They do not constitute medical advice. Evidence levels reflect the grading systems of each respective organization and should be interpreted in clinical context. This reference is updated periodically but may not reflect the most recent guideline revisions.