- 
                                        
hcup-us.ahrq.gov/reports/methods/2018-01.pdf
January 01, 2018 - Incidence measures PDI 2 (pressure 
ulcer), PDI 3 (foreign body), and PDI 13 (transfusion reaction) are … Incidence measures PSI 3 
(pressure ulcer), PSI 5 (foreign body), and PSI 16 (transfusion reaction) are … The AHRQ PSI for 
pressure ulcers is excluded. … • Not reported for any year:  QIs for pressure ulcer (PDI 2 and PSI 3) because numerous 
coding … One PSI Pressure Ulcer was excluded 
due to its dependence upon reporting whether the diagnosis is present
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2016-01.pdf
January 01, 2016 - Incidence measures PDI 2 (pressure 
ulcer), PDI 3 (foreign body), and PDI 13 (transfusion reaction) are … Incidence measures PSI 3 
(pressure ulcer), PSI 5 (foreign body), and PSI 16 (transfusion reaction) are … The AHRQ PSI for 
pressure ulcers is excluded. …  Not reported for any year:  QIs for pressure ulcer (PDI 2 and PSI 3) because numerous 
coding … One PSI Pressure Ulcer was excluded 
due to its dependence upon reporting whether the diagnosis is present
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2015_02.pdf
January 01, 2015 - In addition the QIs for pressure ulcer (PDI 2 and PSI 3) are 
not reported for any year because numerous … Incidence measures PDI 2 (pressure 
ulcer), PDI 3 (foreign body), and PDI 13 (transfusion reaction) are … Incidence measures PSI 3 
(pressure ulcer), PSI 5 (foreign body), and PSI 16 (transfusion reaction) are … The AHRQ PSI for 
pressure ulcers is excluded. … Ulcer was excluded due to its dependence upon reporting whether the 
diagnosis is present on admission
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2017-03.pdf
January 01, 2017 - Incidence measures PDI 2 (pressure 
ulcer), PDI 3 (foreign body), and PDI 13 (transfusion reaction) are … Incidence measures PSI 3 
(pressure ulcer), PSI 5 (foreign body), and PSI 16 (transfusion reaction) are … The AHRQ PSI for 
pressure ulcers is excluded. … • Not reported for any year:  QIs for pressure ulcer (PDI 2 and PSI 3) because numerous 
coding … One PSI Pressure Ulcer was excluded 
due to its dependence upon reporting whether the diagnosis is present
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp
September 01, 2025 - Risk factors for pressure ulcers in acute care hospitals.
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2019-01.pdf
January 01, 2019 - PDI02 
Admissions with pressure ulcers per 
1,000 medical and surgical 
admissions of length 3 or more … days, 
age less than 18 years 
 The AHRQ PDI software requires that the pressure ulcers be 
reported … ulcers per 
1,000 medical and surgical 
discharges of length 3 or more days, 
age18 and over 
The … AHRQ PSI software requires that the pressure ulcers be 
reported as a secondary diagnosis (rather than … ulcer stage III or IV or 
unstageable; admissions involving severe burns or exfoliative 
disorders;
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/methods/2006_1.pdf
January 01, 2006 - Of 9 PSIs evaluated (such as decubitus ulcers, infection 
due to medical care, post-operative hemorrhage
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-DRGsDefManualV25Public.pdf
June 01, 2009 - ___APS-Def_Public.book
4 0 0  C a p i t a l  B o u l e v a r d  •  R o c k y  H i l l ,  C T  0 6 0 6 7  •  1 - 8 0 0 - 9 9 9 - 3 7 4 7
D e f i n i t i o n s  M a n u a l
PUB 6.26.2009
APS-DRGs®
ALL-PAYER SEVERITY-ADJUSTED DRG 
(APS-DRGS®) ASSIGNMENT
FOR PUBLIC USE
VERSION 25
COPYRIGHT PAGE
Copyright © 2009 I… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-DRGsDefManualV27Public.pdf
April 01, 2010 - ___APS-Def_Public.book
4 0 0  C a p i t a l  B o u l e v a r d  •  R o c k
D e f i n i t i o n s  M a n u a l
PUB 4.13.2010
APS-DRGs®
ALL-PAYER SEVERITY-ADJUSTED DRG 
(APS-DRGS®) ASSIGNMENT
FOR PUBLIC USE
VERSION 27
y  H i l l ,  C T  0 6 0 6 7  •  1 - 8 0 0 - 9 9 9 - 3 7 4 7
COPYRIGHT PAGE
Copyright © 2010 In… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS_DRGsDefManualV26Public.pdf
April 01, 2010 - ___APS-DRG_Def.book
4 0 0  C a p i t a l  B o u l e v a r d  •  R o c k
D e f i n i t i o n s  M a n u a l
PUB 4.15.2010
APS-DRGs®
ALL-PAYER SEVERITY-ADJUSTED DRG 
(APS-DRGS®) ASSIGNMENT
VERSION 26
FOR PUBLIC USE
y  H i l l ,  C T  0 6 0 6 7  •  1 - 8 0 0 - 9 9 9 - 3 7 4 7
COPYRIGHT PAGE
Copyright © 2010 Ingeni… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/ccsr/DXCCSR-User-Guide-v2019-1.pdf
September 01, 2019 - biliary perforation; 
noninfective hepatitis 
• Diseases of the skin and subcutaneous tissue (SKN) – pressure … ulcer of skin; non-
pressure ulcer of skin; contact dermatitis 
• Diseases of the musculoskeletal system
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-DRGsV20DefinitionsManual.pdf
January 13, 2015 - Microsoft Word - covtoc.doc
 
 
 
 
Definitions Manual 
 
for 
 
All-Payer 
Severity-adjusted DRG 
(APS-DRGs®) Assignment 
 
 
Public Use 
Version 20.0 
 
 
 
 
 
 
 
Copyright  2003.  HSS, Inc.  All Rights Reserved. 
 
 For assistance, please call Client Services at (800) 999-DRGS (3747). 
 
VERSION 2… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-DRGs%20V21%20Definitions%20Manual.pdf
January 13, 2015 - Microsoft Word - APS_DRG_Def_Public_V211.doc
 
 
 
 
 
 
Definitions Manual 
 
for 
 
All-Payer 
Severity-adjusted DRG 
(APS-DRGs®) Assignment 
 
Public Use 
 
Version 21.0 
 
 
 
 
 
 
 
 
 
Copyright © 2004.  HSS, Inc.  All Rights Reserved. 
 
 For assistance, please call Client Services at (800) 999-DR… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/datainnovations/clinicaldata/AppendixEAHRQProjectDetails.pdf
January 15, 2008 - , intraventricular 
conduction disturbance (426.2 - 426.6), pleural effusion (511.1, 511.8, 511.9), decubitus … ulcer (707.0), skin edema (782.3), congestive heart failure (428 series), lower respiratory 
inflammation
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/procedure/pc2015.csv
January 01, 2012 - 1=minor diagnostic / 2=minor therapeutic / 3=major diagnostic / 4=major therapeutic
	NOTE: New codes are introduced in October and old codes are phased out in September.
	'ICD-9-CM CODE'	'ICD-9-CM CODE DESCRIPTION'	'CATEGORY ASSIGNMENT'
	'0001'	THERAP ULTRASOUND OF HEAD AN (Begin 2002)	2
	'0002'	THERAPEUTIC ULTRASOUND … 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/datainnovations/clinicaldata/AppendixEAHRQProjectDetails.jsp
October 05, 2010 - ), intraventricular conduction disturbance (426.2 - 426.6), pleural effusion (511.1, 511.8, 511.9), decubitus … ulcer (707.0), skin edema (782.3), congestive heart failure (428 series), lower respiratory inflammation
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/db/nation/nis/APS-Def_Public_v24.pdf
March 01, 2008 - ___APS-Def_Public.book
4 0 0  C a p i t a l  B o u l e v a r d  •  R o c k y  H i l l ,  C T  0 6 0 6 7  •  1 - 8 0 0 - 9 9 9 - 3 7 4 7
D e f i n i t i o n s  M a n u a l
PUB 3.3.2008
APS-DRGs®
ALL-PAYER SEVERITY-ADJUSTED DRG 
(APS-DRGS®) ASSIGNMENT
FOR PUBLIC USE
VERSION 24
COPYRIGHT PAGE
Copyright © 2008 I… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/statbriefs/sb29.pdf
April 01, 2007 - HCUP Statistical Brief #29: Adverse Drug Events in U.S. Hospitals, 2004
 
  
 
 
 
 
 
 
HEALTHCARE COST AND 
UTILIZATION PROJECT  
Agency for Healthcare 
Research and Quality
STATISTICAL BRIEF #29 
 
 
April 2007 
Highlights 
 In 2004, adverse drug events 
(ADEs) were noted in over 1.2 
million hospital stays i… 
                                     
                                                                    - 
                                        
hcup-us.ahrq.gov/reports/statbriefs/sb29.jsp
April 01, 2007 - Statistical Brief #29 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 Search All AHRQ Websites 
 
 
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                                                                    - 
                                        
hcup-us.ahrq.gov/toolssoftware/ccsr/DXCCSR-User-Guide-v2025-1.pdf
November 01, 2024 - SKN 
SKN contains 7 categories that include diseases 
of the skin and subcutaneous tissue such as 
pressure … ulcers and contact dermatitis. … respiratory system (RSP) – sinusitis; pneumothorax 
• Diseases of the skin and subcutaneous tissue (SKN) – pressure … ulcer of skin; non-
pressure ulcer of skin; contact dermatitis 
• Symptoms, signs and abnormal clinical