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Confusion sometimes arises from urgent care facilities about which Place of Service (POS) code to use in billing. In most cases, POS-20 is the appropriate code for urgent care billing.

Back in 2003, the Centers for Medicare and Medicaid Services created the “Urgent Care Facility” designation as POS-20. This is defined as “a location distinct from a hospital emergency room, an office, or a clinic, whose purpose is to diagnose and treat illness or injury for unscheduled, ambulatory patients seeking immediate medical attention.”

The claims adjudication system is built around these identifiers (NPI, TIN, POS, etc). And they all affect reimbursement for urgent care centers, explains Kelly Mattingly, Director of Contracting and Credentialing.

There are several benefits for an urgent care to use POS -20. It establishes a track record of urgent care use in a particular market that justifies a higher payment scale for all urgent care centers. And, being recognized as an urgent care facility in contracting is useful when negotiating higher rates based on the extra costs of operating a walk-in facility.

Here are some points to consider when sorting through the issue of coding with POS-20 or POS-22, an outpatient hospital, or POS-11, a physician’s office.

CMS Guidelines

Most insurance plans follow CMS guidelines. Unless an insurance contract specifies that the urgent care facility should bill as POS-11 the center should use POS-20.


If a provider uses the incorrect code based on what’s in their contract, claims may be denied, processed at an incorrect rate, or processed with an incorrect copay, said Monica Klosa, Director of Billing. If an urgent care center is set up in a payer’s system as a physician’s office, then claims using POS-20 may be rejected. Be sure to verify with each payer which POS code to use.


If an urgent care center is affiliated with a physician’s office or multi-specialty group, it should consider whether reimbursement will be higher using POS-20 or POS-11. That depends on several factors:

  1. Does the urgent care bill with its own Tax ID# or that of the physician practice that owns the facility?
  2. Are insurance contracts negotiated separately for the urgent care or as a package for the entire practice?
  3. Do providers who are seeing urgent care patients also practice in the physician’s office or multi-specialty group that owns the facility?
  4. Is a different copay charged because patients are being seen as a specialist or urgent care facility (as opposed to a regular office visit)?


While there are benefits to using the POS-20 code instead of POS-11 for urgent care billing, there are important things to consider before changing the billing number. The most important consideration is to verify that the code you use aligns with the type of service provided by your clinic and what is designated in the contracts. “Otherwise claims will not pay appropriately,” Mattingly said. Work closely with your payers and verify contracts to make sure you don’t pay the price down the road.

Need RCM Help? Our RCM experts use smart solutions and best practices to stay on top of revenue cycles and reimbursement. We provide full-service billing services and managed care contracting and credentialing for urgent care centers in many states. Click here to learn more about Revenue Cycle Management Through Experity.

Learn more about billing with our free guide, Take Control of Your Urgent Care Billing & Operations.

This resource was first published prior to the 2019 merger between DocuTAP and Practice Velocity. The content reflects our legacy brands.

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