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Healthcare · Customer story

HealthNet reduces 30-day readmissions by 22%

A hospital network used relational ML to identify high-risk discharges before they left the ward.

Outcome: 22% reduction in 30-day readmissions on flagged patients

Published March 22, 2026

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The challenge

HealthNet’s care-coordination team was prioritizing post-discharge follow-up based on a simple risk score. It missed complex cases where risk emerged from the combination of diagnoses, medications, and prior admissions — exactly the kind of signal a relational model can learn.

The Langsat approach

  • Trained on de-identified EHR data across 8 hospitals
  • Model consumes the graph of patients, encounters, diagnoses, and prescriptions
  • Output feeds the care team’s existing discharge dashboard

Outcomes

  • 22% fewer 30-day readmissions among flagged patients
  • Care coordinators now see a risk driver breakdown, not just a score
  • HIPAA-compliant deployment in customer’s private AWS account

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