Understanding POS 20 in Medical Billing for Urgent Care
Place of service (POS) codes in medical billing add value because they indicate where services or treatment are performed. They help health insurance companies determine whether to reimburse facility or non-facility rates, ensuring accurate payments.
An incorrect place of service code can lead to downpayments, lower reimbursement rates, or denials—which hurts a practice’s overall revenue cycle management.
In today’s blog, we will discuss POS 24, it’s usage, errors you should avoid, and a comparison with other POS codes, so you understand better how to submit claims using the POS 24 code for faster, cleaner submissions.
What is POS 20 in Medical Billing?
POS 20 refers to a location distinct from a hospital emergency room, office, or clinic, used to treat injuries or diagnose illness for unscheduled visits when patients seek emergency medical attention.
In short, use POS 20 in medical billing for an urgent care center that is not owned, operated, or integrated by a hospital campus.
Furthermore, the POS 20 for an urgent care center is considered a non-facility setting under the Centers for Medicare and Medicaid Services (CMS) fee schedule, meaning reimbursement rates are higher.
When Should You Use POS 20 & When Shouldn't
Learn when to use POS 20 for cleaner claim submissions and when to avoid it to prevent claim rejection.
| When to Use POS 20 | When to Avoid Using POS 20 |
|---|---|
|
✓ The care is delivered at a certified, freestanding urgent care center.
|
ㄨ The setting is a primary care center or physician’s office. |
|
✓ The patient comes for a walk-in visit, not an emergency. |
ㄨ Patient comes in emergency condition. |
|
✓ The visit is unscheduled, instead of a booked appointment. |
ㄨ Patient’s visit is pre-booked. |
|
✓ The condition is immediate, but not an emergency, such as flu, sprains, minor cuts, etc. |
ㄨ The setting is owned or integrated into a hospital (on-campus, off-campus). |
What is the Difference Between POS 20 and POS 23?
POS 20 is used for services or treatments delivered at an urgent care center (freestanding setting), while POS 23 is used for emergency services delivered in the hospital emergency room or department (ED/ER).
For example, if a patient visits a walk-in due to a severe flu infection at an urgent care center, use POS 24. If a patient visits for a serious condition, such as chest pain or angina, in a hospital emergency room, use POS 23.
POS 20 vs. Other Place-of-Service Codes
Let’s have a quick review of POS 20 compared with other place-of-service codes;
| Code | Description | Setting | Reimbursement Rate |
|---|---|---|---|
|
POS 20 |
Services delivered at an urgent care center (not associated with a hospital). |
Facility |
Higher |
|
Services delivered at a physician’s office. |
Facility |
Lower |
|
|
Telehealth services delivered at any setting other than patient’s home. |
Facility |
Lower
|
|
|
Telehealth service delivered at patient’s home. |
Non-facility |
Higher |
|
|
POS 23 |
Services or treatments delivered in a hospital emergency room. |
Facility |
Lower |
|
POS 24 |
Services delivered at an Ambulatory Surgical Center (ASC) that is a freestanding, licensed facility. |
Non-facility |
Higher |
|
For inpatient services, which require the patient to be formally admitted to the hospital. |
Facility |
Lower |
How POS 20 Affects Medical Billing and Reimbursement
POS 20 identifies services provided at an urgent care facility and helps distinguish urgent care visits (POS 11) from emergency department visits (POS 23). Using the correct POS helps the billing entity to process claims accurately.
POS 20 may also affect the reimbursement level because payers vary payment policies based on service location, CPT/HCPCS codes, and the contracted provider. Incorrect usage of POS may lead to claim rejections and/or payment delays. Medical billing staff must verify that POS 20 is used correctly in accordance with payer requirements.
Which CPT and HCPCS Codes Are Used in Urgent Care Billing?
For urgent care billing, using appropriate, up-to-date Current Procedural Terminology (CPT) codes is essential because it helps ensure the payer understands what service or treatment was delivered to the patient. HCPCS codes, on the other hand, are standardized alphanumeric codes used to report medical procedures, services, supplies, and equipment on insurance claims submitted to Medicare, Medicaid, and private health plans.
Let’s quickly review common CPT and ICD-10 codes used in an urgent care center.
| Code | Code Type | Decsription |
|---|---|---|
|
99202-99205 |
CPT codes |
For evaluation and management services of new patients. |
|
99212-99215 |
CPT codes |
For evaluation and management services of established/old patients. |
|
12001 – 12057 |
CPT codes |
For laceration and wound care. |
|
96372 |
CPT code |
For Subcutaneous or intramuscular injection, e.g., antibiotics, steroids, tetanus. |
|
71045 – 71048 |
CPT codes |
For X-ray and imaging procedures. |
|
S9083 |
HCPCS code |
Global fee for urgent care services. It covers all services provided during an urgent care visit under a single bundled payment. |
|
S9088 |
HCPCS code |
Services provided in an urgent care center, reported in addition to the appropriate CPT code when the payer permits.
|
How to Submit a Medical Claim Using POS 20
When using POS 20 to submit a medical claim, you should enter 20 in box 24B of the paper CMS-1500 in loop CLM05, in the 837P file.
Follow these instructions as well;
- When using a POS 20 code, ensure you confirm the patient’s information, including the patient’s insurance coverage plan and demographics.
- Review the provider’s notes, diagnosis, and the procedures and services performed.
- Code E/M services, diagnostic tests, and procedures based on the documentation.
- Add applicable modifiers based on the service performed and payer’s guidelines.
- Verify prior authorization for high-cost services before treatments.
- Send claims electronically and track their status.
- Resolve claim rejections and denials promptly.
Common POS 20 Billing Errors and How to Prevent Them
Urgent care billing errors can lead to claim rejections, denials, underpayments, and reimbursement delays. Some common POS 20 billing mistakes include:
- Incorrect POS Code Selection: Using POS 11 (Office) or POS 23 (Emergency Room) instead of POS 20 for eligible urgent care services. Verify the actual service location before submitting claims.
- Incorrect CPT and HCPCS Coding: Reporting codes that do not match the procedures, diagnostic tests, or treatments performed. Cross-check codes against medical documentation.
- Missing or Incorrect Modifiers: Omitting required modifiers or applying them incorrectly can affect claim processing. Review payer-specific modifier requirements.
- Insufficient Medical Documentation: Missing provider notes, diagnosis details, or procedure documentation can lead to denials. Ensure every billed service is supported by complete medical records.
- Ignoring Payer-Specific Guidelines: Different insurers may have specific requirements for urgent care billing, including S9088 and S9083. Verify coverage and reimbursement policies before submission.
- Duplicate Claim Submission: Submitting the same urgent care service more than once can result in duplicate claim denials. Check claim history before resubmitting.
Regular coding audits, eligibility verification, and claim reviews help urgent care facilities identify these errors and improve reimbursement accuracy.
Better Billing = Better Revenue Outcomes.
Outsource your medical billing services for accurate, timely claim submissions that achieve a 98% clean claim ratio and deliver better revenue outcomes—helping your practice boost cash flow.
Frequently Asked Questions
POS 20 is a non-facility code, as it refers to the services/treatments delivered at standalone, certified urgent care centers that doesn’t attached to any hospital, in an on-campus or off-campus setting.
On a medical claim, place of service 20 code refers to the urgent care center (standalone) where the service/treatment is delivered to the patient.
Yes, you can bill CPT code 99215, as it indicates the E/M services for an established patient of around 40-45 minutes of total time, and POS 20 indicates that these services are delivered at an urgent care center.
POS (place of service) codes in medical billing refer to the setting/area where the service or treatment is delivered to the patient, and insurers use them to set reimbursement rates based on facility or non-facility codes.
POS 20 refers to the urgent care center (freestanding, certified place) where the service/treatment is delivered, while POS 21 refers to inpatient services delivered at hospital, which requires the patient must admitted or stay at least one day.
Share this post:
Book a Consultation
Categories
Table of Content
- What is POS 20 in Medical Billing?
- When Should You Use POS 20 & When Shouldn't
- What is the Difference Between POS 20 and POS 23?
- POS 20 vs. Other Place-of-Service Codes
- How POS 20 Affects Medical Billing and Reimbursement
- Which CPT and HCPCS Codes Are Used in Urgent Care Billing?
- How to Submit a Medical Claim Using POS 20
- Common POS 20 Billing Errors and How to Prevent Them
- Frequently Asked Questions
Comprehensive Medical Billing Services
Subscribe ECS Newsletter
Get the latest in medical billing. No spam, only valuable updates!
