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Medical errors are a serious problem in the healthcare industry, costing anywhere between $17 and $29 billion annually—even ranking as the third-highest cause of death, according to some estimates. Errors come in many forms, such as misdiagnosis, patient misidentification, and poor sterilization procedures. One classification of error, known as misadventure, has its own set of ICD-10 diagnosis codes. Misadventure is defined as harm from or adverse reactions to medical treatment. The codes, which range from Y62 to Y69, cover accidental cuts, foreign objects left in body, failures to sterilize, dosage errors, instrument failures, blood or drug contamination, and other causes. The following list identifies the top 25 hospitals with the highest estimated number of combined diagnoses of misadventures in 2016 (most recent data available).

The overall number of hospitals with diagnoses in any of the relevant ICD-10 codes was quite small, totaling slightly less than 175 according to Definitive Healthcare data. The facilities with the highest estimated diagnoses tended to be large hospitals with significant patient volumes, as would be expected when measuring the absolute number of diagnoses. They also had far more estimated inpatient surgeries than the national median of 914. Most of the ICD-10 codes deal with errors that are more likely to or can only occur during surgical procedures.

Top 25 Hospitals by Misadventure Diagnosis

 

Hospital Name

ICD-10

Est. Total Diagnoses

Total Surgeries

1.

Sonora Behavioral Health Hospital (AZ)

Y636

225

N/A

2.

University Hospital (MO)

Y658

77

23,937

3.

Specialists Hospital Shreveport (LA)

Y658

56

1,703

4.

Sharp Grossmont Hospital (CA)

Y658

45

12,427

5.

Baptist Medical Center Jacksonville (FL)

Y658

38

38,502

6.

Hospital Of University Of Pennsylvania (PA)

Y658

35

25,456

7.

Sharp Memorial Hospital (CA)

Y658

31

21,436

8.

Beth Israel Deaconess Medical Center (MA)

Y658

29

41,164

9.

Intermountain Medical Center (UT)

Y658

29

24,078

10.

VCU Medical Center Main Hospital (VA)

Y658

27

22,706

11.

Hendrick Medical Center (TX)

Y658

26

9,878

12.

Saint Thomas West (TN)

Y658

19

9,456

13.

Rancho Los Amigos National Rehabilitation Center (CA)

Y658

18

1,414

14.

Sinai Hospital of Baltimore (MD)

Y658

16

19,646

15.

Texas Health Harris Methodist Hospital Southlake (TX)

Y658

15

4,491

16.

Park City Medical Center (UT)

Y658

13

5,140

17.

Kaweah Delta Medical Center (CA)

Y658

13

8,518

18.

Barnes - Jewish Hospital South (MO)

Y658

12

42,327

19.

Texas Health Presbyterian Hospital Rockwall (TX)

Y658

12

5,562

20.

Hospital Oriente (PR)

Y658

12

1,153

21.

Western Pennsylvania Hospital (PA)

Y635

12

9,533

22.

Western Pennsylvania Hospital (PA)

Y658

12

9,533

23.

Dixie Regional Medical Center - River Road (UT)

Y658

11

13,456

24.

Dixie Regional Medical Center - River Road (UT)

Y69

10*

13,456

25.

University of Vermont Medical Center (VT)

Y658

10*

16,792

Fig 1. Data from Definitive Healthcare based on 2016 Medicare SAF (1/1/2016 - 12/31/2016). Complete Calendar Year 2017 data is projected to be released in fall 2018 by the Centers for Medicare and Medicaid Services (CMS).

*All columns with less than 11 claims/procedures are left blank due to CMS privacy requirements.

Top 10 Most Common Misadventure Diagnoses

 

ICD-10 Description

ICD-10 Code

Est. Total Diagnoses

ICD-9 Code

1.

Other specified misadventures during surgical and medical care

Y658

879

E8768

2.

Underdosing and nonadministration of necessary drug, medicament or biological substance

Y636

263

E8738

3.

Unspecified misadventure during surgical and medical care

Y69

84

E8769

4.

Inappropriate temperature in local application and packing

Y635

19

E8735

5.

Overdose of radiation given during therapy

Y632

13

E8732

6.

Failure in dosage during other surgical and medical care

Y638

12

E8738

7.

Nonadministration of surgical and medical care

Y66

11

E8768

8.

Inadvertent exposure of patient to radiation during medical care

Y633

10*

E8733

9.

Failure in dosage during unspecified surgical and medical care

Y639

10*

E8739

10.

Contaminated medical or biological substance administered by unspecified means

Y649

10*

E8759

Fig 2. Data from Definitive Healthcare based on 2016 Medicare SAF (1/1/2016 - 12/31/2016). Complete Calendar Year 2017 data is projected to be released in fall 2018 by the Centers for Medicare and Medicaid Services (CMS).

*All columns with less than 11 claims/procedures are left blank due to CMS privacy requirements