Table 5.

All-cause 30-day Readmissions Ranked by Most Frequently Readmitted Gastrointestinal, Liver or Pancreatic Conditions in US Hospitals, 2015^a

Rank	Principal diagnosisb for index hospital stay	Number of index stays	Number of 30-day all cause readmissions	% Readmitted	Median Charge per Index stay (USD)	Median Charge per Readmission (USD)
1	Gastrointestinal hemorrhage	669,488	96,945	14.5	28,819	30,800
	Upperc	312,081	43,734	14.0	26,019	27,717
	Lowerc	241,349	37,361	15.5	36,385	36,231
2	Cholelithiasis and cholecystitis	585,770	85,257	14.6	31,622	33,990
3	Intestinal obstruction	433,873	54,409	12.5	23,472	27,837
4	Pancreatitis	393,913	56,148	14.3	28,477	30,201
	Acute	371,503	53,261	14.3	28,633	30,507
	Chronic	22,614	2,919	12.9	25,140	25,503
5	Appendicitis	294,012	42,197	14.4	29,657	31,231
6	Obesity	230,476	31,884	13.8	33,607	34,871
7	Inflammatory bowel disease	175,917	23,881	13.6	26,345	27,735
	Ulcerative colitis	120,017	16,401	13.7	28,766	27,158
	Crohn’s disease	55,900	7,480	13.4	25,222	29,586
8	Diverticulitis	143,050	19,733	13.8	25,912	29,562
9	Liver disease and viral hepatitis	139,971	20,936	15.0	29,692	30,607
	Alcoholic liver disease	23,202	3,439	15.3	28,519	29,678
	Hepatitis C	12,422	1,865	15.5	29,371	31,838
	Hepatitis B	1,704	261	16.3	30,637	37,120
	Ascites or SBP	6,142	895	14.4	28,058	29,857
	Hepatic Encephalopathy	19,563	2,847	14.8	27,816	30,250
10	Clostridium difficile infection	130,895	18,382	14.0	22,550	25,939
11	Gastritis	114,861	16,118	14.0	28,349	31,111
12	Gastroesophageal reflux disease	86,188	11,413	13.4	34,513	38,956
13	Gastrointestinal infectiond	86,183	12,302	14.3	26,338	26,690
14	Non-infectious gastroenteritis/colitis	82,128	11,834	14.4	26,396	29,428
15	Functional/motility disorderse	70,963	10,058	14.2	25,583	28,071
16	Abdominal pain	62,758	8,969	14.3	28,562	30,752
Total			540,466

Source: Healthcare Cost and Utilization Project Nationwide Readmissions Database (https://hcupnet.ahrq.gov)

^aWeighted national estimates from HCUP Nationwide Readmissions Database (NEDS) 2015, Agency for Healthcare Research and Quality (AHRQ).

^bSee supplementary table for specific groupings of ICD-9 CM codes for each category

^cThe code “Gastrointestinal hemorrhage NOS” (578.9) was included in the overall GI bleeding category but was not included in subcategories of upper and lower GI bleeding, because it is nonspecific.

^dIncludes Salmonella, Shigella, E.coli, and other viral, bacterial, and parasitic GI infections. Does not include Clostridium difficile infections

^eIncludes esophageal (e.g. achalasia), gastric (e.g. dyspepsia), and intestinal (e.g. irritable bowel syndrome) functional/motility syndromes, as well as constipation and diarrhea

Abbreviations: USD: US dollars ($); SBP: spontaneous bacterial peritonitis