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Billing Policies


Contact Information

Washington University Diagnostic Laboratory Services (WU-DLS)

PO Box 60352

Campus Box 8118

St. Louis, MO 63160

Billing Office Phone: 314-747-1100

Office Hours: 8:00AM-5:00PM (CST) | Monday - Friday (excluding holidays) 

 

Certifications

WU-DLS Laboratories  CLIA#  NPI#
WU-AMP Core Lab 26D2013203 1174880629
WU-Cytogenetics, FFPE FISH & GPS 26D0698285 1043414113
WU-Dermatopathology Lab 26D2057162 1487099768

 

Federal Tax Identification Number 

43-0653611



 

Washington University Diagnostic Laboratory Services offers both direct patient/3rd party insurance and client billing as payment options. 

 

Direct Patient/Third Party Billing

Washington University Diagnostic Laboratory Services participates with the following major payers:  

  • Aetna
  • Anthem
  • Cigna
  • Coventry
  • Missouri Medicaid
  • Missouri Medicare*
  • United Healthcare 

WU-DLS' contracts with the above listed plans are primarily within the St. Louis metro network. The full list of contracted plans can be found at:

https://wuphysicians.wustl.edu/for-patients/accepted-health-insurance/all-accepted-health-insurance-plans

Please Note: WU-DLS does not enroll providers with Out of State Medicaid nor Out of State Medicaid MC+ plans. Cases received for patients covered under these programs, as well as non-contracted plans, will be returned to the client or billed to the client (if client opts to have the test performed regardless of the coverage limitation). Clients should contact the billing office to discuss billing & payment arrangements.

*Washington University Diagnostic Laboratory Services will bill Medicare for all physician services as well as laboratory (technical) charges associated with office visits. However, laboratory (technical) charges associated with Medicare hospital outpatient or inpatient visits must be submitted to the client in accordance to the Benefits Improvement and Protection Act of 2000 (BIPA).

 

Client Billing

Washington University Diagnostic Laboratory Services produces client invoices on a monthly basis. The invoices itemize the date of service (collection date), patient name and date of birth, charge description, price and CPT code of each test performed. Payment of the invoice is due within 30 days of receipt. The client is responsible for applicable insurance and patient billing. 

 

Current Procedural Terminology Coding (CPT)

CPT Codes are provided in the Washington University Diagnostic Laboratory Services online test menu at https://wupath.wustl.edu/testmenu.  Clients are encouraged to consult the CPT Coding Manual published by the American Medical Association and to address questions regarding the use of any particular code to their local Medicare carrier. CPT codes are subject to change at any time; therefore, it is the client’s responsibility to contact our billing department to discuss correct coding.

 

Advance Beneficiary Notification (ABN)

In the event a health care practitioner orders tests that Medicare deems medically unnecessary, a properly executed Advance Beneficiary Notification (ABN) must be secured by the client prior to collection of the specimen. The ABN form must accompany the specimen to our laboratory. The ABN enables Washington University Diagnostic Laboratories to bill the patient if Medicare denies our claim for medical necessity or frequency limitations. It is the client’s responsibility to ascertain the need for the ABN. In the absence of a properly executed ABN, Washington University Diagnostic Laboratory Services will bill denied charges back to the client.

 

General Requirements For Direct Patient/3rd Party Billing

A completed Washington University Diagnostic Laboratory Services Test Requisition form must accompany the specimen and must contain the following information:

  • Referring physician’s complete first and last name (no initials)
  • Referring physician’s NPI number
  • ICD-10 diagnosis code (supporting medical necessity) for clinical lab testing
  • Patient name, address, DOB & gender
  • Primary insurance name and mailing address
  • Primary insurance policy number
  • Policyholder’s name & relationship to patient
  • Supplementary/secondary insurance name and mailing address (if applicable)
  • Supplementary/secondary subscriber name & insurance policy number
  • A copy of the patient’s insurance card (front & back) is desired
  • The correct birthdate of all pertinent insurance policy holders

Requisition forms can be found online at https://wupath.wustl.edu/requisitions.

 

General Information

Washington University Diagnostic Laboratories balance bills patients for deductible and co-insurance amounts, out-of-network penalties and non-covered services. It is the patient/provider’s responsibility to obtain a referral for work sent to Washington University Diagnostic Laboratories in the event the patient’s insurance carrier considers Washington University Diagnostic Laboratories to be an out-of-network provider.