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hcup-us.ahrq.gov/toolssoftware/surgeryflags_svcproc/SGF-SvcPrc-ChgLg-v20192-v20201.xlsx
October 01, 2020 - v20201
Table_of_Contents
This Excel file enumerates the changes between the following releases of the Surgery … v2019.2 (released October 2020) to v2020.1 (released October 2020)
Table of Contents
Comparison of the surgery … flag assignments by type of HCPCS Level I (CPT) codes
v2019.2 surgery flag assignments versus v2020.1 … The comparison of the difference between software versions was performed at the level of surgery flag … Compare_SurgeryFlag_Code_Counts
Comparison of the Number of HCPCS Level I (CPT) Codes by Surgery Flag
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hcup-us.ahrq.gov/sasdoverview.jsp
January 01, 2025 - and Services Databases (SASD)
The State Ambulatory Surgery and Services Databases (SASD) are part … The specific types of ambulatory surgery and outpatient services included in each SASD vary by State … All SASD include data from hospital-owned ambulatory surgery facilities. … All SASD include data from hospital-owned ambulatory surgery facilities. … Used with the SID, the SASD may be used to compare inpatient surgery data with ambulatory surgery data
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompmo.jsp
June 01, 2024 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … and observation services is only flagged as ambulatory surgery. … However, ambulatory surgery records with evidence of observation services can be identified by HCUP data … Selection of Records for Inclusion in the SASD
All records identified by HIDI as ambulatory surgery
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hcup-us.ahrq.gov/reports/methods/EvalofSASD1999Final.pdf
June 13, 2003 - SURGERY DATA
Visit Level Data
1999 HCUP State Ambulatory Surgery Databases (SASD)
Ambulatory … surgery centers. … surgery. … outpatient surgery centers. … to all surgery centers.
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hcup-us.ahrq.gov/db/state/sasddbdocumentation.jsp
April 01, 2025 - State Ambulatory Surgery and Services
Databases (SASD) Database Documentation
The State Ambulatory … Surgery and Services Databases (SASD)
are State-specific files that include data for ambulatory … surgery
and other outpatient services from hospital-owned facilities. … In
addition, some States provide ambulatory surgery and outpatient
services from nonhospital-owned
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hcup-us.ahrq.gov/reports/statbriefs/sb188-Surgeries-Hospital-Outpatient-Facilities-2012.pdf
January 01, 2012 - Comparison of ambulatory surgery with inpatient
surgery is essential for understanding utilization patterns … • The HCUP Surgery Flag software6 was used to identify procedures that are classified as a
surgery … • The HCUP Surgery Flag software was used to identify procedures that are classified as a surgery … based on a narrow definition (surgery flag value = NARROW). … surgery facilities.
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hcup-us.ahrq.gov/tech_assist/index_stu.jsp
February 01, 2022 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … Databases (SASD) - Data Elements
State Ambulatory Surgery Databases (SASD) - Data Use Agreement … State Ambulatory Surgery Databases (SASD) - Overview
State Ambulatory Surgery Databases (SASD) - Purchasing … data
State Ambulatory Surgery Databases (SASD) - Reports
State data - Ambulatory Surgery
State
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hcup-us.ahrq.gov/db/vars/ncpt_inscope/nassnote.jsp
August 01, 2019 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … HCUP Surgery Flag Software was used to identify surgical procedures of interest for the NASS. … The Surgery Flag Software processes CPT procedure codes and classifies them as narrow, broad, or neither … Note that although encounters are limited to those with at least one "in-scope" major ambulatory surgery
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hcup-us.ahrq.gov/db/nation/nass/nassdbdocumentation.jsp
April 01, 2025 - Nationwide Ambulatory Surgery Sample (NASS) Database Documentation
The largest all-payer ambulatory … surgery database in the United States, the Nationwide Ambulatory Surgery Sample (NASS) produces national … estimates of major ambulatory surgery encounters in hospital-owned facilities.
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hcup-us.ahrq.gov/db/state/sasddist/SASD_Introduction.jsp
June 01, 2022 - All SASD include data from hospital-owned ambulatory surgery facilities. … Researchers and policymakers use the SASD to compare inpatient surgery data with ambulatory surgery data … All SASD include
data from hospital-owned ambulatory surgery facilities. … All SASD include data from hospital-owned ambulatory surgery facilities. … The unit of observation is an ambulatory surgery encounter.
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hcup-us.ahrq.gov/reports/infographics/inpt_outpt.jsp
March 01, 2015 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … Percentages below show body systems most commonly addressed in inpatient surgery. … surgeries in 2012: 9.3 million
Percentages below show body systems most commonly addressed in outpatient surgery … throat surgeries: 86.7 percent
Only includes surgeries performed in hospital-owned ambulatory surgery
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hcup-us.ahrq.gov/news/archives.jsp
January 01, 2022 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … Past Events
2021
October 7, 2021
An In-Depth Exploration of the HCUP Nationwide Ambulatory Surgery … April 21, 2021
An In-Depth Exploration of the HCUP Nationwide Ambulatory Surgery Sample (NASS)
Webinar … NE
State Ambulatory Surgery and Services Databases (SASD): KY, MD, NE
State Emergency Department
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hcup-us.ahrq.gov/reports/methods/EvaloftheSASD2001(HCUP_CD)v3Final.pdf
March 19, 2004 - SOURCES OF AMBULATORY SURGERY DATA
Visit Level Data
2001 HCUP State Ambulatory Surgery Databases … surgery centers. … surgery centers on an annual basis
in their Freestanding Outpatient Surgery Center (FOSC) database. … Data are collected through an annual survey of freestanding outpatient surgery centers and all
surgery … COMPARISONS OF AMBULATORY SURGERY DATA
Differentiating between hospital-based outpatient surgery centers
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hcup-us.ahrq.gov/db/vars/total_as_encounters/nassnote.jsp
August 01, 2019 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … HCUP Surgery Flag Software for Services and Procedures was used to identify surgical procedures of interest … The Surgery Flag Software processes CPT procedure codes and classifies them as narrow, broad, or neither … NNNNN AS encounters with at least one narrow surgery
Top
Internet
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hcup-us.ahrq.gov/reports/methods/2005_04.pdf
January 01, 2005 - Ambulatory Surgery Center. http://www.surgicalalliance.com/asc.htm. … surgery centers. … Freestanding Outpatient Surgery Center (FOSC) Data
The FOSC profiles freestanding ambulatory surgery … Ambulatory Surgery Center. http://www.surgicalalliance.com/asc.htm. … HCUP (11/15/2005) 8 Evaluation of the State Ambulatory
Surgery Databases (CD)
surgery, the greatest
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hcup-us.ahrq.gov/db/vars/pointoforiginub04/nisnote.jsp
October 04, 2025 - center
E
Transfer from Ambulatory Surgery Center
F
Transfer from hospice
F
Transfer … Center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice and is under a … center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice
F
Transfer … Center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice and is under a … center
E
Transfer from Ambulatory Surgery Center
F
Transfer from hospice and is under a
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hcup-us.ahrq.gov/tech_assist/index_mno.jsp
August 01, 2020 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … ICD-9-CM
Utilization Flags for Revenue Center Codes and ICD-9-CM
Procedure Classes for ICD-9-CM
Surgery … Sample (NASS)
Nationwide Ambulatory Surgery Sample (NASS) - Data Elements
Nationwide Ambulatory … Surgery Sample (NASS) - Data Use Agreement
Nationwide Ambulatory Surgery Sample (NASS) - Overview … Nationwide Ambulatory Surgery Sample (NASS) - Purchasing data
Nationwide Ambulatory Surgery Sample
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hcup-us.ahrq.gov/db/vars/pointoforiginub04/kidnote.jsp
October 04, 2025 - center
E
Transfer from Ambulatory Surgery Center
F
Transfer from hospice
F
Transfer … Center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice and is under a … center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice
F
Transfer … Center
E
Transfer from ambulatory surgery center
F
Transfer from Hospice and is under a … center
E
Transfer from Ambulatory Surgery Center
F
Transfer from hospice and is under a
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hcup-us.ahrq.gov/reports/statbriefs/sb252-Invasive-Ambulatory-Surgeries-2016.pdf
January 01, 2016 - Trends in use of ambulatory
surgery centers for cataract surgery in the United States, 2001-2014. … A single encounter could involve more than
one surgery. … Encounters included in HCUP Nationwide Ambulatory Surgery Sample
The Nationwide Ambulatory Surgery Sample … hospital-owned ambulatory surgery facilities. … Overview of the Nationwide Ambulatory Surgery Sample
(NASS).
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hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompor.jsp
September 01, 2019 - Classes Refined for ICD-10-PCS
Tools for CPT and HCPCS Level II
CCS for Services and Procedures
Surgery … Outpatient Surgery: Ambulatory Surgery - Any record with a revenue code 036X, 0481, 049X, 0511, 0723, … Emergency Room - Any record not classified as outpatient surgery AND with a CPT code of 99281-99285 or … Observation - Any record not classified as Outpatient Surgery or Emergency Room AND with a revenue code … Therapies - Any record not classified as Outpatient Surgery, Emergency Room, or Observation AND with