Healthcare
21 columns
201 rows
8 formats

Clinical Diagnostic Error Analysis

This dataset provides detailed records of clinical diagnostic errors, including patient demographics, error types, severity, contributing factors, and outcomes. It enables healthcare organizations to analyze patterns, identify root causes, and implement corrective actions to improve diagnostic accuracy and patient safety. The dataset is ideal for quality improvement initiatives, risk management, and clinical research.

last updated 20 Aug 2025
by GoMask

The brief that made it

Analyzing diagnostic error patterns for quality improvement

Sample rows

preview · 8 of 201 rows · all 21 columns

error_idstring	clinical_settingstring	patient_ageinteger	corrective_action_takenboolean	organization_idstring	patient_idstring	patient_genderstring	diagnosis_datedate	error_detected_datedate	initial_diagnosisstring	correct_diagnosisstring	error_typestring	error_severitystring	provider_idstring	provider_rolestring	outcome_impactstring	reporter_idstring	report_datedate	contributing_factorsstring	error_descriptionstring	corrective_action_descriptionstring
ERR-10001	outpatient	67	true	ORG001	PAT-90001	female	2020-01-12	2020-01-30	Acute bronchitis	Pneumonia	missed	high	PRV-001	physician	temporary harm	REP-1001	2020-02-01	Symptoms overlapped, chest x-ray not performed initially.	Initial diagnosis failed to identify pneumonia due to overlapping symptoms with bronchitis and lack of imaging.	Provider educated on use of imaging for similar presentations.
ERR-10002	emergency	34	true	ORG002	PAT-90002	male	2020-03-05	2020-03-15	Migraine	Subarachnoid hemorrhage	missed	critical	PRV-002	resident	permanent harm	REP-1002	2020-03-16	History not reviewed, no imaging performed.	Patient presented with severe headache, incorrectly diagnosed as migraine, underlying hemorrhage missed.	Mandatory checklist for headache workup implemented.
ERR-10003	outpatient	22	true	ORG001	PAT-90003	female	2020-06-11	2020-06-13	Urinary tract infection	Kidney stone	incorrect	moderate	PRV-003	nurse	temporary harm	REP-1003	2020-06-15	Incomplete history, limited physical exam.	Pain and hematuria attributed to infection, kidney stone missed until imaging performed.	Refresher training for nurses on differential diagnosis.
ERR-10004	inpatient	50	true	ORG003	PAT-90004	male	2020-08-21	2020-09-05	Stable angina	Acute myocardial infarction	delayed	critical	PRV-002	physician	permanent harm	REP-1004	2020-09-06	ECG findings not interpreted correctly.	Patient admitted for chest pain, MI diagnosis delayed due to misinterpretation of ECG.	Cardiology consultation required for chest pain admissions.
ERR-10005	outpatient	41	false	ORG002	PAT-90005	female	2020-10-02	2020-10-04	Allergic rhinitis	Sinusitis	incorrect	low	PRV-004	resident	no harm	REP-1005	2020-10-05	Symptoms overlapping, physical exam not detailed.	Patient with nasal congestion and headache diagnosed with allergies, sinusitis missed.	blank
ERR-10006	inpatient	71	true	ORG003	PAT-90006	male	2020-11-12	2020-11-22	Congestive heart failure	Pulmonary embolism	missed	high	PRV-005	specialist	death	REP-1006	2020-11-23	Risk factors for PE not considered.	Dyspnea and edema attributed to CHF, PE missed until deterioration.	PE risk assessment protocol introduced.
ERR-10007	emergency	29	true	ORG002	PAT-90007	male	2021-02-14	2021-02-19	Tension headache	Meningitis	missed	critical	PRV-001	physician	permanent harm	REP-1007	2021-02-20	No lumbar puncture performed.	Patient with fever and headache diagnosed with tension headache, meningitis not ruled out.	Protocol for headache and fever revised.
ERR-10008	emergency	47	true	ORG001	PAT-90008	female	2021-03-08	2021-03-10	Gastroenteritis	Appendicitis	incorrect	moderate	PRV-003	nurse	temporary harm	REP-1008	2021-03-11	Abdominal pain attributed to viral infection.	Abdominal pain and vomiting misdiagnosed as gastroenteritis, appendicitis identified after worsening.	Training on abdominal pain triage for nursing staff.
ERR-10009	inpatient	53	true	ORG003	PAT-90009	male	2021-05-17	2021-05-25	COPD exacerbation	Lung cancer	missed	high	PRV-004	specialist	permanent harm	REP-1009	2021-05-26	Long smoking history not considered.	Patient admitted for COPD flare, underlying lung cancer missed until imaging.	Updated screening for high-risk COPD patients.
ERR-10010	outpatient	38	true	ORG001	PAT-90010	female	2021-07-04	2021-07-10	Anxiety disorder	Hyperthyroidism	incorrect	moderate	PRV-001	physician	temporary harm	REP-1010	2021-07-11	Physical symptoms attributed to psychiatric cause.	Symptoms like palpitations and weight loss diagnosed as anxiety, thyroid disorder missed.	Provider training on psychiatric vs. endocrine symptoms.
ERR-10011	inpatient	58	true	ORG002	PAT-90011	male	2021-09-18	2021-09-30	Gout	Septic arthritis	delayed	high	PRV-002	physician	permanent harm	REP-1011	2021-10-01	Joint aspiration delayed.	Joint pain attributed to gout, septic arthritis diagnosis delayed due to late aspiration.	Standardized protocol for joint pain evaluation.
ERR-10012	inpatient	65	true	ORG003	PAT-90012	female	2021-11-05	2021-11-17	Stroke	Transient ischemic attack	incorrect	moderate	PRV-005	specialist	temporary harm	REP-1012	2021-11-18	Imaging findings misinterpreted.	Misinterpretation of radiology led to incorrect diagnosis, TIA confirmed later.	Radiology review process improved.
ERR-10013	outpatient	15	false	ORG001	PAT-90013	female	2022-01-22	2022-01-24	Viral pharyngitis	Mononucleosis	missed	low	PRV-003	nurse	temporary harm	REP-1013	2022-01-25	Lab tests not ordered.	Pharyngitis diagnosed without lab confirmation, mononucleosis diagnosis delayed.	blank
ERR-10014	inpatient	83	true	ORG002	PAT-90014	male	2022-02-11	2022-02-18	Dementia	Normal pressure hydrocephalus	missed	high	PRV-001	physician	permanent harm	REP-1014	2022-02-19	Imaging not reviewed, gait disturbance overlooked.	Elderly patient with cognitive decline diagnosed as dementia, hydrocephalus missed.	Mandatory imaging review for cognitive decline.
ERR-10015	emergency	5	true	ORG003	PAT-90015	male	2022-03-21	2022-03-23	Gastroenteritis	Intussusception	missed	high	PRV-004	resident	temporary harm	REP-1015	2022-03-24	Classic signs not recognized in child.	Child with abdominal pain and vomiting diagnosed as gastroenteritis, intussusception missed.	Pediatric abdominal pain protocol updated.
ERR-10016	inpatient	39	true	ORG001	PAT-90016	female	2022-04-15	2022-04-20	Anemia	Leukemia	missed	critical	PRV-005	specialist	permanent harm	REP-1016	2022-04-21	CBC findings not fully evaluated.	Anemia diagnosed but malignant causes not considered, leukemia found after bone marrow biopsy.	Provider education on anemia workup.
ERR-10017	emergency	60	true	ORG002	PAT-90017	female	2022-05-03	2022-05-06	Sciatica	Spinal abscess	missed	critical	PRV-002	physician	permanent harm	REP-1017	2022-05-07	Fever overlooked, imaging delayed.	Back pain and fever attributed to sciatica, spinal abscess not considered.	Fever added as red flag in triage protocol.
ERR-10018	inpatient	45	true	ORG003	PAT-90018	other	2022-06-12	2022-06-18	Acute pancreatitis	Gallstones	delayed	moderate	PRV-003	nurse	temporary harm	REP-1018	2022-06-19	Imaging delayed, gallbladder not evaluated.	Pancreatitis diagnosed, underlying gallstones identified after delay.	Imaging protocol updated for pancreatitis.
ERR-10019	outpatient	30	true	ORG001	PAT-90019	male	2022-08-24	2022-08-26	Anxiety	Pulmonary embolism	missed	critical	PRV-001	physician	death	REP-1019	2022-08-27	Symptoms attributed to anxiety without risk assessment.	Chest pain and dyspnea diagnosed as anxiety, PE missed.	Mandatory risk assessment for chest pain.
ERR-10020	emergency	22	true	ORG002	PAT-90020	female	2022-09-06	2022-09-10	Gastroenteritis	Ectopic pregnancy	missed	critical	PRV-004	resident	permanent harm	REP-1020	2022-09-11	Pregnancy status not checked.	Abdominal pain and vomiting attributed to infection, ectopic pregnancy missed.	Pregnancy test protocol updated for women of childbearing age.

What the 201 rows show

from the 201-row sample

Inpatient (clinical setting) stands out: mean patient_age is 63.7, against 40.1 for the rest.

75%corrective_action_taken = true
47median patient_age
4patient genders
4error types
4error severities
4provider roles

Mean patient_age by clinical_setting201 rows

patient_age201 rows, in bands of 10

Median 47, from 5 to 83.

organization_id201 rows · top 10 of 13 values

ORG00230
ORG00329
ORG30219
ORG31719
ORG00118
ORG00514
ORG86112
ORG85711
ORG86010
ORG85810

21 columns by typefrom the column list below

string 16
integer 1
date 3
boolean 1

Columns

21 columns in four groups

blueprint · 21 columns
column	type	description	example
Text 16 columns
`error_id`	string	Unique identifier for each diagnostic error recordunique	ERR-10001
`patient_id`	string	Unique identifier for the patient involved in the diagnostic error	PAT-90001
`patient_gender`	string	Gender of the patientmale · female · other · unknown	female
`initial_diagnosis`	string	The original diagnosis given to the patient	Acute bronchitis
`correct_diagnosis`	string	The correct diagnosis after error was identified	Pneumonia
`error_type`	string	Type/category of diagnostic error (e.g., missed diagnosis, delayed diagnosis, incorrect diagnosis)missed · delayed · incorrect · other	missed
`error_severity`	string	Severity of the diagnostic errorlow · moderate · high · critical	high
`contributing_factors`	string	Summary of key factors that contributed to the error (e.g., communication breakdown, incomplete history)optional	Lab tests not ordered.
`clinical_setting`	string	Clinical environment where the error occurred (e.g., emergency, outpatient, inpatient)emergency · outpatient · inpatient · other	outpatient
`provider_id`	string	Unique identifier for the healthcare provider involved	PRV-001
`provider_role`	string	Role of the provider (e.g., physician, nurse, resident)physician · nurse · resident · specialist · other	physician
`organization_id`	string	Unique identifier for the healthcare organization	ORG001
`error_description`	string	Detailed narrative describing the diagnostic erroroptional	Initial diagnosis failed …
`outcome_impact`	string	Impact of the error on patient outcome (e.g., no harm, temporary harm, permanent harm, death)no harm · temporary harm · permanent harm · death · unknown	temporary harm
`corrective_action_description`	string	Description of the corrective action taken (if any)optional	Provider educated on use …
`reporter_id`	string	Unique identifier for the person reporting the error	REP-1001
Numbers 1 column
`patient_age`	integer	Age of the patient at the time of the diagnostic error0 to 120	67
Dates and times 3 columns
`diagnosis_date`	date	Date when the initial diagnosis was made	2020-01-12
`error_detected_date`	date	Date when the diagnostic error was detected	2020-01-30
`report_date`	date	Date when the error was reported	2020-02-01
True or false 1 column
`corrective_action_taken`	boolean	Indicates if corrective action was taken following the error	true

Clinical Diagnostic Error Analysis

Sample rows

What the 201 rows show

Columns

Use it for

A healthcare dashboard

A root-cause class exercise

A software demo

Make it yours.

Same schema. As many rows as you need.

What should your data show?

Sample rows

What the 201 rows show

Columns

Use it for

A healthcare dashboard

A root-cause class exercise

A software demo

Make it yours.

Same schema. As many rows as you need.

More in Healthcare

What should your data show?