Wiki modifier 90

Blackhorse

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Patient goes to Lab A for covid-19 testing, but Lab A referred PT to Lab B. Can Lab A bill U0003 with modifier 90?
 
If lab specimen was done at X office and transmitted to our in house lab (different location) can we bill 99000?
What is the charge to insurance?
What dx code is used?
Do we require a modifier?
Do all insurance payor reimbursement code?

Please advise
 
If lab specimen was done at X office and transmitted to our in house lab (different location) can we bill 99000?
What is the charge to insurance?
What dx code is used?
Do we require a modifier?
Do all insurance payor reimbursement code?

Please advise
We got paid by billing U0003-90. We pay our reference lab to do the testing and they don't file claims to any insurance. However I heard Blue Shield will not pay for out of state reference lab testing, you need to appeal in order for them to pay you.
 
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