QUEST Integration – Place of Service Codes

Original Effective Date:

08/01/1994

Current Effective Date:

01/01/2015

The place of service (POS) codes recognized by HMSA are listed below. The POS codes marked with an asterisk (*) are new codes effective October 1, 2003.

Alphabetical order

42 Ambulance – Air or Water

41	Ambulance – Land
24	Ambulatory Surgery Center
13	Assisted Living Facility*
25	Birthing Center
53	Community Mental Health Center
61	Comprehensive Inpatient Rehabilitation Facility
62	Comprehensive Outpatient Rehabilitation Facility
33	Custodial Care Facility
23	Emergency Room – Hospital
65	End Stage Renal Disease Treatment Facility
50	Federally Qualified Health Center
14	Group Home*
04	Homeless Shelter
34	Hospice
49	Independent Clinic*
81	Independent Laboratory
05	Indian Health Service Free-standing Facility
06	Indian Health Service Provider-based Facility
21	Inpatient Hospital (patient admitted)
51	Inpatient Psychiatric Facility
54	Intermediate Care Facility/Mentally Retarded
60	Mass Immunization Center
26	Military Treatment Facility
15	Mobile Unit
57	Non-residential Substance Abuse Facility*
32	Nursing Facility
11	Office
22	Outpatient Hospital (patient not admitted)
12	Patient’s Home
52	Psychiatric Facility – Partial Hospitalization
56	Psychiatric Residential Treatment Center
55	Residential Substance Abuse Treatment Facility

72 Rural Health Clinic

03	School
31	Skilled Nursing Facility
71	State or Local Public Health Clinic
07	Tribal 638 Free-standing Facility
08	Tribal 638 Provider-based Facility
20	Urgent Care Facility
99	Other Place of Service, not identified above

Numerical order, with definitions

Note: Codes 00-10, 13-20, 27-30, 35-40, 43-50, 57-60, 63-64, 66-70, 74-80 and 82-98 are unassigned.

03	School – A facility whose primary purpose is education.
04	Homeless Shelter – A facility or location whose primary purpose is to provide temporary housing homeless individuals (e.g., emergency shelters, individual or family shelters).
05	Indian Health Service Free-standing Facility – A facility or location, owned and operated by the Indian Health Service, which provides diagnostic, therapeutic (surgical and non-surgical) and rehabilitation services to American Indians and Alaska Natives who do not require hospitalization.
06	Indian Health Service Provider-based Facility – A facility or location, owned and operated by the Indian Health Service, which provides diagnostic, therapeutic (surgical and non-surgical), and rehabilitation services rendered by, or under the supervision of, physicians to American Indians and Alaska Natives admitted as inpatients or outpatients.
07	Tribal 638 Free-standing Facility – A facility or location owned and operated by a federally recognized American Indian or Alaska Native tribe or tribal organization under a 638 agreement, which provides diagnostic, therapeutic (surgical and non-surgical), and rehabilitation services to tribal members who do not require hospitalization.
08	Tribal 638 Provider-based Facility – A facility or location owned and operated by a federally recognized American Indian or Alaska Native tribe or tribal organization under a 638 agreement, which provides diagnostic, therapeutic (surgical and non-surgical), and rehabilitation services to tribal members admitted as inpatients or outpatients.
11	Office – Location other than a hospital, skilled nursing facility, military treatment facility, community health center, state or local public health clinic or intermediate care facility, where the health professional routinely provides health examinations, diagnosis and treatment of illness or injury on an ambulatory basis.
12	Patient’s Home – Location other than a hospital or other facility, where the patient receives care in a private residence.
13	*Assisted Living Facility – Congregate residential facility with self-contained living units providing assessment of each resident’s needs and on-site support 24 hours a day, 7 days a week, with the capacity to deliver or arrange for services including some health care and other services.
14	*Group Home – Congregate residential foster care setting for children and adolescents in state custody that provides some social, health care, and educational support services and that promotes rehabilitation and reintegration of residents into the community.
15	Mobile Unit – A facility/unit that moves from place-to-place equipped to provide preventive, screening, diagnostic, and/or treatment services.
20	Urgent Care Facility – 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.
21	Inpatient Hospital – A facility, other than psychiatric, that primarily provides diagnostic, therapeutic (both surgical and non-surgical) and rehabilitation services by, or under, the supervision of physicians to patients admitted for various medical conditions.
22	Outpatient Hospital – A portion of a hospital that provides diagnostic, therapeutic (both surgical and non-surgical) and rehabilitation services to sick or injured persons who do not require hospitalization or institutionalization.
23	Emergency Room – Hospital – A portion of a hospital where emergency diagnosis and treatment of illness or injury are provided.
24	Ambulatory Surgery Center – A free-standing facility, other than a physician's office, where surgical and diagnostic services are provided on an ambulatory basis.
25	Birthing Center – A facility, other than a hospital's maternity facilities or a physician’s office, which provides a setting for labor, delivery and immediate post-partum care as well as immediate care of newborn infants.
26	Military Treatment Facility – A medical facility operated by one or more of the Uniformed Services. Military Treatment Facility (MTF) also refers to certain former U.S. Public Health Service (USPHS) facilities now designated as Uniformed Service Treatment Facilities (USTFs).
31	Skilled Nursing Facility – A facility that primarily provides inpatient skilled nursing care and related services to patients who require medical nursing or rehabilitative services, but does not provide the level of care or treatment available in a hospital.
32	Nursing Facility – A facility that primarily provides to residents skilled nursing care and related services for the rehabilitation of injured, disabled or sick persons or, on a regular basis, health-related care services above the level of custodial care to other than mentally retarded individuals.
33	Custodial Care Facility – A facility that provides room, board and other personal-assistance services, generally on a long-term basis, and which does not include a medical component.
34	Hospice – A facility, other than a patient’s home, in which palliative and supportive care for terminally ill patients and their families is provided. (Note: If hospice services are provided in the patient's home, please list POS 12 in column 24B of the CMS 1500 claim form.)
41	Ambulance – Land – A land vehicle specifically designed, equipped and staffed for lifesaving and transporting the sick or injured.
42	Ambulance – Air or Water – An air or water vehicle specifically designed, equipped and staffed for lifesaving and transporting the sick or injured.
49	*Independent Clinic – A location, not part of a hospital and not described by any other Place of Service code, that is organized and operated to provide preventive, diagnostic, therapeutic, rehabilitative, or palliative services to outpatients only.
50	Federally Qualified Health Center – A facility located in a medically underserved area that provides Medicare beneficiaries preventive primary medical care under the general direction of a physician.
51	Inpatient Psychiatric Facility – A facility that provides inpatient psychiatric services for the diagnosis and treatment of mental illness on a 24-hour basis, by or under the supervision of a physician.
52	Psychiatric Facility – Partial Hospitalization – A facility for the diagnosis and treatment of mental illness that provides a planned therapeutic program for patients who do not require full-time hospitalization, but who need broader programs than are possible from outpatient visits in a hospital-based or hospital-affiliated facility.
53	Community Mental Health Center – A facility that provides the following services: outpatient services, including specialized outpatient services for children, the elderly, individuals who are chronically ill, and residents of the CMHCs mental health services area who have been discharged from inpatient treatment at a mental health facility; 24-hour a day emergency care services; day treatment, other partial hospitalization services, or psychosocial rehabilitation services; screening for patients being considered for admission to state mental health facilities to determine the appropriateness of such admission; and consultation and education services.
54	Intermediate Care Facility/Mentally Retarded – A facility that primarily provides health-related care and services above the level of custodial care to mentally retarded individuals but does not provide the level of care or treatment available in a hospital or skilled nursing facility.
55	Residential Substance Abuse Treatment Facility – A facility that provides treatment of substance (alcohol and drug) abuse to live-in patients who do not require acute medical care. Services include individual and group therapy and counseling, family counseling, laboratory tests, drugs and supplies, psychological testing, and room and board.
56	Psychiatric Residential Treatment Center – A facility or distinct part of a facility for psychiatric care that provides a total 24-hour therapeutically planned and professionally staffed group living and learning environment.
57	*Non-residential Substance Abuse Treatment Facility – A location that provides treatment for substance (alcohol and drug) abuse on an ambulatory basis. Services include individual and group therapy and counseling, family counseling, laboratory tests, drugs and supplies, and psychological testing.
60	Mass Immunization Center – A location where providers administer pneumoccal pneumonia and influenza virus vaccinations and submit these services as electronic media claims, paper claims or using the roster billing method. This generally takes place in a mass immunization setting such as a public health center, pharmacy, or mall but may include a physician office setting.
61	Comprehensive Inpatient Rehabilitation Facility – A facility that provides comprehensive rehabilitation services under the supervision of a physician to inpatients with physical disabilities. Services include physical therapy, occupational therapy, speech pathology, social or psychological services, and orthotic and prosthetic services.
62	Comprehensive Outpatient Rehabilitation Facility – A facility that provides comprehensive rehabilitation services under the supervision of a physician to outpatients with physical disabilities. Services include physical therapy, occupational therapy and speech pathology services.
65	End Stage Renal Disease Treatment Facility – A facility, other than a hospital, that provides dialysis treatment, maintenance and/or training to patients or care givers on an ambulatory or homecare basis.
71	State or Local Public Health Clinic – A facility maintained by either state or local health departments that provides ambulatory primary medical care under the general direction of a physician.
72	Rural Health Clinic – A certified facility, located in a rural, medically underserved area, that provides ambulatory primary medical care under the general direction of a physician.
81	Independent Laboratory – A laboratory certified to perform diagnostic and/or clinical tests independent of an institution or physician's office.
99	Other Place of Service – Other place of service not identified above.

CURRENT AS OF 08/03/2026

Revision History

Date	Nature of Revision
08/03/2026	Migrated to new platform.