MATCHED TO CURRENT CLAIM
Duplicate Surgery Billing
FRAUD
HIGH SEVERITY
Case ID: FWA-2024-00118 · Confirmed: 12 Jun 2024 · Published by: Dr. Rachel Yuen (Medical Review)
92% Pattern Match — Current Claim CLM-25-091044
Matched on: Same procedure code (HX-441), same claimant, within 90-day window (42 days). Prior confirmed case recovered HK$142,000. Recommended action: Escalate to Fraud Investigation Unit.
Scenario Description
A claimant submitted two inpatient surgical claims for the same procedure (arthroscopic knee surgery, code HX-441) within a 42-day period. The first claim (HK$68,000) was processed and paid in March 2024. A second claim (HK$74,000) was submitted in April 2024 by a different provider. Upon investigation, both claims were confirmed as billing for the same surgical episode — the second provider had been issued a backdated invoice.
FWA Type
Duplicate Billing
Amount Recovered
HK$74,000
Investigation Duration
14 days
Outcome
Confirmed Fraud
Detection Signals
Identical procedure code within 90 days
Rule: RULE-INP-042 — Duplicate Surgery Check
Second provider onboarded < 3 months before submission
ML Flag: New Provider Anomaly Model (score: 0.87)
Invoice date preceded by admission date on second claim
Document LLM: Date sequence anomaly detected
Recommended Actions for Assessors
1
Request original OT report and anaesthetic records from both providers and cross-reference dates
2
Verify hospital admission records directly with the second provider's admin department
3
Place both claims on hold and escalate to Fraud Investigation Unit with this reference case
4
Add claimant to watchlist and flag second provider for enhanced monitoring
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