SERVICES INTERRUPTION - MAINTENANCE: 2026-06-27T10:00:00-0500 — 2026-06-27T14:00:00-0500 Multiple UI & API services will be unavailable during this window, including those of Allele Registry, CSpec, ERepo, LDH, and ACI. The maintenance will upgrade a key machine used by these services. The interruptions are expected to be shorter than the full maintenance activity window.
Welcome to the ClinGen CNV Interpretation Calculator. The calculator is based on the CNV scoring metrics that appear in the ACMG Technical Standards. This tool is designed to help you keep track of the points you have assigned based on the evidence you have observed, then tallies the points to help you arrive at preliminary CNV classification.
CNV-Loss
CNV-Loss calculator helps to evaluate clinical significance of Copy Number losses
We appreciate your feedback on the functionality of this tool. Contact us at clingen@clinicalgenome.org to provide your feedback or suggestions for improvement.