Rules Engine Management

MASE-owned validation, payer-specific edits, and AI-suggested logic

Active Rules
8
in production
AI-Suggested
3
ML-powered
Total Evaluations
23.9K
lifetime
Avg False Positive
4.2%
rate
RULE-001

NPI Taxonomy Mismatch

Critical
Provider Data Quality

Flag claims where billing NPI taxonomy code does not match NPPES registry

Evaluations
4,820
False Positive Rate
1.2%
Last Updated
2024-12-01
RULE-002

Aetna — Behavioral Health Pre-Auth Required

HighAetna only
Payer-Specific Edit

Block 837P claims for CPT 90834–90837 to Aetna without pre-authorization number in field 2300.REF

Evaluations
218
False Positive Rate
3.8%
Last Updated
2025-01-02
RULE-003

UHC Modifier 26/TC Split Required

High
AI Suggested
UnitedHealthcare only
Payer-Specific Edit

Require Modifier 26 or TC on technical/professional component codes when billed together to UHC

Evaluations
391
False Positive Rate
5.1%
Last Updated
2025-01-10
RULE-004

Diagnosis Code ICD-10 Specificity

Medium
MASE Validation

Require highest specificity ICD-10 code — reject unspecified codes when more specific variant exists

Evaluations
9,102
False Positive Rate
7.4%
Last Updated
2024-11-15
RULE-005

Medicaid Frequency Limit Check

High
AI Suggested
Medicaid only
Denial Prevention

Cross-reference claim procedure against Medicaid frequency tables before submission

Evaluations
155
False Positive Rate
2.9%
Last Updated
2024-12-18
RULE-006

AI-Predicted Duplicate Detection

High
AI Suggested
AI-Suggested

ML model detects likely duplicate submissions based on patient ID, service date, and procedure within 30-day window

Evaluations
2,031
False Positive Rate
4.2%
Last Updated
2025-01-05
RULE-007

Place of Service Code Validation

Medium
MASE Validation

Validate POS codes against approved CMS POS table and flag invalid/deprecated codes

Evaluations
6,748
False Positive Rate
0.8%
Last Updated
2024-10-30
RULE-008

Medicare ABN Requirement

MediumMedicare only
Denial Prevention

Flag potentially non-covered Medicare services without ABN documentation flag in claim notes

Evaluations
420
False Positive Rate
8.1%
Last Updated
2024-09-22