HEALTHCARE COST & UTILIZATION PROJECT

User Support

Do Your own analysis
Explore Expert Research & Limited Datasets

Central Distributor SEDD: Description of Data Elements

 
OPservice - Indicator of outpatient service (as received from source)
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

The indicator of outpatient service (OPservice) is retained as provided by the data source. This data element can be used to distinguish emergency department visits, ambulatory surgery encounters, and other types of outpatient services. No edit checks are performed on this data element during HCUP processing.

 
Top
 
 
 
Uniform Values
 
VariableDescriptionValueValue Description
OPserviceIndicator of outpatient service (as received from source)n(a)Source-specific coding of outpatient service
 
Top
 
 
 
State Specific Notes

Alaska

The values of OPService in Alaska are defined as follows:

Source Value Description
1 Emergency Room
2 Outpatient Surgery / ASC Patient
3 Outpatient Observation
4 Other Outpatient


Arizona
Source Value Source Description
S Split Visit (treated in the ER prior to admission)
M Mixed Visit (treated in the ER then moved to observation or other OP status)
0-9 Satellite ED Identifier (IP only)


District of Columbia

District of Columbia only submitted outpatient records with service values, 1,2 and 3. The full range of values of OPService in District of Columbia are in the table.

Source Value Source Description
1 Emergency Room
2 Fast Track ER (Urgent Care) Within Hospital
3 Ambsurg
4 Free-standing Emergency Room
5 Free-standing Fast Track Ambsurg 6 = Free-standing Ambsurg
7 Observation in Emergency Room
8 Observation Other


Florida
Source Value Source Description
14 Ambulatory Surgery Center
23 Hospital
64 Cardiac Catheterization
66 Lithotripsy


Georgia

The values of OPService in Georgia are defined as follows:

Source Value Source Description
A Ambulatory Surgery
AE Ambulatory Surgery/Emergency Room
E Emergency Room
O Other / Outpatient
SW Swing Bed


Iowa

Beginning in 2014, Iowa provides five separate indicators for the type of outpatient service. Because a patient can receive more than one type of outpatient service, the five indicators were concatenated to create a five-character value for the HCUP data element OPService. Each character is either 0 for no outpatient service of that type or 1 indicating that patient received that type of service. See the table below for a description of each type of outpatient service. For example, the OPservice value of "10000" means the patient received care in the emergency room, but none of the other four types of outpatient services. The OPservice value of "10100" means the patient received both emergency and observation services.

Position Description
First byte EMERGENCY ROOM - A value of 1 indicates the patient had emergency room revenue codes and/or EM codes on their record which include: HCPCS codes 99281-99285 or 99291 or revenue codes 0450, 0451, 0452, 0456, or 0459.
Second byte AMBULATORY SURGERY - A value of 1 indicates the patient had ambulatory surgery revenue codes on their record which include: 0360, 0361, 0369, 0480, 0481, 0490, 0499, 0750 or 0759.
Third byte OBSERVATION - A value of 1 indicates the patient has observation revenue codes on their record which include: revenue codes 0760, 0762 or 0769.
Fourth byte THERAPY - A value of 1 indicates the patient has therapy revenue codes on their record which include: revenue codes in categories 41X-44X or 93X-95X.
Fifth byte LAB AND RADIOLOGY - A value of 1 indicates the patient has lab or radiology revenue codes on their record which include: revenue codes in categories 30X, 32X-35X, 40X, 61X, 73X-74X or 92X.


Kansas

The values of OPService in Kansas are defined as follows:

Source Value Source Description
1 Emergency Room
2 Outpatient Surgery
3 Observation only
4 Rural health clinic
5 Other outpatient clinics
6 Physicians clinic
9 Other outpatient
Blank Unknown


Kentucky

The values of OPService in Kentucky are defined as follows:

Source Value Source Description
OS Outpatient Surgery
OC Observation care
ED Emergency Department
OT Other outpatient
MA Mammography

OPService is no longer available starting in 2015.



Maine

Beginning with 2016 data, Maine submits a single digit Category of Location of Service code that is used for OPSERVICE. The data value is followed by a 2-digit UB04-defined Place of Service Code (01-99). Beginning with 2018 data the Location of Service code is only populated for populated for physicians/physician practices and can be blank when Place of Service (OP4006) is not populated with codes 11, 17, 20, 22, 49, 50, 71, 72.

The definitions for the leading Category of Location of Service code is as follows:

Source Value Description
1 Hospital Outpatient encounter
2 Other locations, such as clinics, labs or physician practice


Maryland

Each value of this data element indicates below:

Valid beginning in 2012
1 Clinic
2 Emergency room
3 Labor and Delivery
4 Outpatient Surgery
5 All Other Outpatient



Valid prior to 2012
01 Clinic
02 Emergency room
03 Obstetrics
04 Outpatient Surgery
05 All Other Outpatients
80 Greenbaum Cancer Center
81 UMMS Shock Trauma

From 2007 - 2011, MD SEDD included the records associated with OPSERVICE = 05, 80, or 81.



Minnesota

Minnesota provides four separate indicators for the type of outpatient service. Beginning with 2017 data, these flags are used to create OPService. Because a patient can receive more than one type of outpatient service, the four indicators were concatenated to create a four-character value for the HCUP data element OPService. Each character is either 0 for no outpatient service of that type or 1 indicating that patient received that type of service. See the table below for a description of each type of outpatient service. For example, the OPservice value of "1000" means the patient received care in the emergency room, but none of the other four types of outpatient services. The OPservice value of "1010" means the patient received both emergency and observation services.

Position Description
First byte Emergency Room
Second byte Ambulatory Surgery
Third byte Observation
Fourth byte Imaging


Missouri

The values of OPService in Missouri are defined as follows:

Source Value Source Description
1 Emergency Room
2 Outpatient Surgery
3 Outpatient Observation
4 Other Outpatient


Nebraska
Value Description
1 Emergency Room
2 Hospital-based Ambulatory Surgery
3 Observation
4 Therapies
5 Lab/Radiology
6 Other Outpatient


New Jersey
Source Value Source Description
0 Inpatient
1 Same Day Surgery (SDS)
2 ER Outpatient
3 Other Outpatient


New York
Source Value Source Description
A Ambulatory Services
E Emergency Department Services
O Outpatient Services


South Dakota

Beginning in 2013, South Dakota provides five separate indicators for the type of outpatient service. Because a patient can receive more than one type of outpatient service, the five indicators were concatenated to create a five-character value for the HCUP data element OPService. Each character is either 0 for no outpatient service of that type or 1 indicating that patient received that type of service. See the table below for a description of each type of outpatient service. For example, the OPservice value of "10000" means the patient received care in the emergency room, but none of the other four types of outpatient services. The OPservice value of "10100" means the patient received both emergency and observation services.

Position Description
First byte EMERGENCY ROOM - A value of 1 indicates the patient had emergency room revenue codes and/or EM codes on their record which include: HCPCS codes 99281-99285 or 99291 or revenue codes 0450, 0451, 0452, 0456, or 0459.
Second byte AMBULATORY SURGERY - A value of 1 indicates the patient had ambulatory surgery revenue codes on their record which include: 0360, 0361, 0369, 0480, 0481, 0490, 0499, 0750 or 0759.
Third byte OBSERVATION - A value of 1 indicates the patient has observation revenue codes on their record which include: revenue codes 0760, 0762 or 0769.
Fourth byte THERAPY - A value of 1 indicates the patient has therapy revenue codes on their record which include: revenue codes in categories 41X-44X or 93X-95X.
Fifth byte LAB AND RADIOLOGY - A value of 1 indicates the patient has lab or radiology revenue codes on their record which include: revenue codes in categories 30X, 32X-35X, 40X, 61X, 73X-74X or 92X.


Vermont

Beginning in 2017, Vermont supplied place of service codes:

Source Value Description
1 Emergency Room
2 Outpatient Surgery
3 Observation Only
4 Therapy Only (PT/OT)
5 Outpatient (Lab/Radiation)
6 Other Outpatient


Wisconsin
Source Value Source Description
0 Inpatient
1 Outpatient Surgery
2 Emergency Room
3 Observation
4 Therapies
5 Lab/Radiology
6 Other
7 Repetitive Services

Top
 
 
 

Internet Citation: HCUP Central Distributor SEDD Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). October 2024. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/sedddistnote.jsp?var=opservice.
Are you having problems viewing or printing pages on this website?
If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov.
Privacy Notice, Viewers & Players
Last modified 10/16/24