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

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Hospital NameICD-10Est. Total DiagnosesTotal SurgeriesExplore This Dataset
1.Sonora Behavioral Health Hospital (AZ)Y636225N/AExplore This Profile
2.University Hospital (MO)Y6587723,937Explore This Profile
3.Specialists Hospital Shreveport (LA)Y658561,703Explore This Profile
4.Sharp Grossmont Hospital (CA)Y6584512,427Explore This Profile
5.Baptist Medical Center Jacksonville (FL)Y6583838,502Explore This Profile
6.Hospital Of University Of Pennsylvania (PA)Y6583525,456Explore This Profile
7.Sharp Memorial Hospital (CA)Y6583121,436Explore This Profile
8.Beth Israel Deaconess Medical Center (MA)Y6582941,164Explore This Profile
9.Intermountain Medical Center (UT)Y6582924,078Explore This Profile
10.VCU Medical Center Main Hospital (VA)Y6582722,706Explore This Profile
11.Hendrick Medical Center (TX)Y658269,878Explore This Profile
12.Saint Thomas West (TN)Y658199,456Explore This Profile
13.Rancho Los Amigos National Rehabilitation Center (CA)Y658181,414Explore This Profile
14.Sinai Hospital of Baltimore (MD)Y6581619,646Explore This Profile
15.Texas Health Harris Methodist Hospital Southlake (TX)Y658154,491Explore This Profile
16.Park City Medical Center (UT)Y658135,140Explore This Profile
17.Kaweah Delta Medical Center (CA)Y658138,518Explore This Profile
18.Barnes - Jewish Hospital South (MO)Y6581242,327Explore This Profile
19.Texas Health Presbyterian Hospital Rockwall (TX)Y658125,562Explore This Profile
20.Hospital Oriente (PR)Y658121,153Explore This Profile
21.Western Pennsylvania Hospital (PA)Y635129,533Explore This Profile
22.Western Pennsylvania Hospital (PA)Y658129,533Explore This Profile
23.Dixie Regional Medical Center - River Road (UT)Y6581113,456Explore This Profile
24.Dixie Regional Medical Center - River Road (UT)Y6910*13,456Explore This Profile
25.University of Vermont Medical Center (VT)Y65810*16,792Explore This Profile

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

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ICD-10 DescriptionICD-10 CodeEst. Total DiagnosesICD-9 CodeExplore This Dataset
1.Other specified misadventures during surgical and medical careY658879E8768Explore This Profile
2.Underdosing and nonadministration of necessary drug, medicament or biological substanceY636263E8738Explore This Profile
3.Unspecified misadventure during surgical and medical careY6984E8769Explore This Profile
4.Inappropriate temperature in local application and packingY63519E8735Explore This Profile
5.Overdose of radiation given during therapyY63213E8732Explore This Profile
6.Failure in dosage during other surgical and medical careY63812E8738Explore This Profile
7.Nonadministration of surgical and medical careY6611E8768Explore This Profile
8.Inadvertent exposure of patient to radiation during medical careY63310*E8733Explore This Profile
9.Failure in dosage during unspecified surgical and medical careY63910*E8739Explore This Profile
10.Contaminated medical or biological substance administered by unspecified meansY64910*E8759Explore This Profile

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