POS 49 is the CMS Place of Service (POS) code for an Independent Clinic, a freestanding outpatient healthcare facility that is not part of a hospital and is not classified under another CMS place of service category.

POS 49 applies only when codes such as POS 11 (Office), POS 20 (Urgent Care Facility), POS 50 (Federally Qualified Health Center), POS 72 (Rural Health Clinic), or other CMS-defined service locations do not accurately describe the site of care.

This guide explains what POS 49 means in medical billing, when to use it, how it affects reimbursement, whether it is a facility or non-facility code, how it compares with POS 11, and why POS 49 claims may be denied.

What Does POS 49 Mean in Medical Billing?

POS 49 represents an Independent Clinic, a non-hospital outpatient setting recognized by CMS. Its primary purpose is to identify where healthcare services were delivered so that payers can apply the correct coverage, payment, and claim-editing rules.

POS 49 is reserved for independent outpatient clinics that do not fit within another CMS-defined place of service category. When reported correctly, the code helps support accurate reimbursement, proper claim adjudication, and compliance with payer billing requirements.

Because POS 49 is classified as a non-facility place of service, it may also affect how professional services are reimbursed under payer-specific payment policies. Accurate reporting ensures that claims reflect the actual site of care and reduces the risk of billing discrepancies.

When Should You Use POS 49?

POS 49 is used when the site is a standalone clinic that is not owned by a hospital, serves outpatients only, and is not described by any more specific place of service code. The clinic’s CMS enrollment and ownership decide this, not the word “clinic” on the door.

Common settings that fit POS 49:

Specialty clinics that are not part of a hospital system (allergy, dermatology, endocrinology, pain management)
Independent infusion centers
Independent diagnostic clinics not classified as a lab (POS 81) or a hospital imaging department
Behavioral health clinics that are not hospital-owned and do not meet the criteria for POS 53, 55, 57, or 58
Wound care, hearing, or weight-management clinics operating as standalone outpatient facilities

If a clinic shares a parent organization with a hospital but operates as a separate corporate entity at a separate address, the billing team should confirm provider-based status before defaulting to POS 49. Provider-based clinics usually bill POS 19 or POS 22.

When Not To Use POS 49?

POS 49 does not apply to these sites, even when “clinic” appears in the facility name:

Hospital outpatient departments: Use POS 22 (on-campus) or POS 19 (off-campus).
Physician offices and group practices: Use POS 11.
Urgent care centers: Use POS 20.
Federally Qualified Health Centers: Use POS 50.
Rural Health Clinics: Use POS 72.
State or local public health clinics: Use POS 71.
Ambulatory surgical centers: Use POS 24.
Walk-in retail health clinics inside a pharmacy or store: Use POS 17.

A facility’s name does not decide its POS code. The provider enrollment record, ownership structure, and CMS certification do.

Is POS 49 Inpatient or Outpatient?

POS 49 is outpatient only. The CMS definition limits it to outpatients, so a clinic that admits patients for overnight stays does not fit POS 49. This is why specialty clinics, infusion centers, and allergy or dermatology clinics often use POS 49: patients arrive, get the service, and leave the same day.

For payment math, outpatient status under POS 49 means the claim is processed as a professional claim under the Medicare Physician Fee Schedule, paid at the non-facility rate.

Is POS 49 a Facility or Non-Facility Code?

POS 49 is classified as a non-facility code under the Medicare Physician Fee Schedule. The facility/non-facility designation determines which payment rate Medicare applies to physician services billed at the site.

The classification appears in CMS Transmittal R3873CP, which sets the facility/non-facility payment-rate designation for every POS code in the CMS code set.

The facility’s name does not determine the POS. Provider enrollment, ownership, and the site’s CMS certification do.

POS 49 vs POS 11: What’s the Difference?

POS 11 is for an office. POS 49 is for an independent clinic that does not meet the office definition and is not described by any other code. Both are non-facility codes, so the basic payment math is similar, but the operating model is not.

Attribute	POS 11 (Office)	POS 49 (Independent Clinic)
Setting	Routine physician or group office	Standalone clinic not described by another POS
Ownership	Solo or group physician practice	Independent legal entity, not hospital-owned
Hospital affiliation	No	No
Services	Office visits, exams, diagnosis, and treatment on an ambulatory basis	Preventive, diagnostic, therapeutic, rehabilitative, or palliative outpatient services
Facility status	Non-facility	Non-facility
CMS-1500 Box 24B entry	11	49
Common examples	Family medicine practice, specialist group office	Independent infusion center, standalone allergy or pain clinic

The practical separator: if the site is a routine clinician’s office, use POS 11. If it is something larger or more service-specific that operates as its own clinic outside a hospital, and no other POS describes it, use POS 49.

How Does POS 49 Compare With Other Place of Service Codes?

POS 49 sits alongside several other outpatient and clinic-type POS codes in the CMS set. Each code carries its own facility or non-facility designation, which controls how Medicare applies the fee schedule.

POS	Site	Facility/Non-facility
49	Independent Clinic	Non-facility
11	Office	Non-facility
19	Off Campus-Outpatient Hospital	Facility
22	On Campus-Outpatient Hospital	Facility
20	Urgent Care Facility	Non-facility
24	Ambulatory Surgical Center	Facility
50	Federally Qualified Health Center	Non-facility
72	Rural Health Clinic	Non-facility
81	Independent Laboratory	Non-facility

Does POS 49 Apply to Telehealth Services?

POS 49 does not apply to telehealth encounters. CMS assigns telehealth to its own place of service codes, separated by whether the patient is in the home or elsewhere when receiving the service.

POS 02: Telehealth provided other than in the patient’s home
POS 10: Telehealth provided in the patient’s home

Why Are POS 49 Claims Denied?

Payer remittances cite several recurring reasons for POS 49 denials, generally tied to a mismatch between the POS, the procedure code, the provider’s enrollment record, or telehealth-specific coding. Reported denial patterns include:

POS inconsistent with the procedure code: The CPT requires a facility setting, or the payer policy expects a facility POS for that service.
Service location does not match provider enrollment: The billing NPI is not enrolled at the address used for the independent clinic.
Telehealth modifier conflict: A POS 49 line was billed with a telehealth modifier or telehealth-specific CPT.

Resolution depends on which field is wrong, corrected per the payer’s appeal process using the CARC and RARC reported on the remittance.

Final Words

POS 49 is the CMS Place of Service code for an Independent Clinic, used to identify outpatient services provided in a freestanding, non-hospital clinic that is not more accurately described by another POS code. Because POS 49 is classified as a non-facility setting under the Medicare Physician Fee Schedule, correct reporting can directly affect reimbursement, claim processing, and payer compliance.

Before billing POS 49, providers should verify the clinic’s ownership structure, enrollment status, and CMS classification to ensure another place of service code does not apply. Understanding when to use POS 49, how it differs from POS 11 and hospital outpatient codes, and the common causes of claim denials can help reduce billing errors and support accurate reimbursement.