Medical accuracy
96,7 %

*Evaluated based on 1,471 case studies.

Medical Quality

Leading-edge medical accuracy and reliability.

We verify the medical accuracy of our technology in medical stress tests. This happens continuously and on the basis of thousands of case studies from the literature. The goal is to identify the verified diagnosis from the case study as a possible outcome. This has proven to be the most reliable method of testing medical accuracy under objective conditions.

Benchmark with case studies from the standard literature.

In order to objectively assess the quality of XUND in comparison to other solutions, we assessed the 45 case studies from Semigran et al. 2015, one of the most frequently cited publications in the domain. These case studies are regularly used by researchers to evaluate medical accuracy, most recently by Ceney et al. 2021. The results showed that 93.3% of the cases were identified correctly.

ICD-10
Medical condition
Age
Result
ICD-10 J30.1
Medical condition Hay fever
Age 22 Years
Result identified
22-year-old male with hay fever
ICD-10: J30.1
Present symptoms:
  • Sniffles
  • Frequent sneezing
  • Itching
  • Red eyes
  • Tearing Eyes
Additional information:
Do such symptoms recur annually at the same time of year or in the same month?
Yes
Have you been suffering from such complaints regularly for a longer period of time?
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Hay fever
  • Common cold
ICD-10 J11
Medical condition Influenza
Age 30 Years
Result identified
30-year-old female with influenza
ICD-10: J11
Present symptoms:
  • Fever
  • Cough
  • Headache
  • General malaise
  • Physical exhaustion
Additional information:
Have you already been vaccinated against influenza this year?
No
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Influenza
  • COVID-19 infection
ICD-10 G03
Medical condition Meningitis
Age 18 Years
Result identified
18-year-old male with meningitis
ICD-10: G03
Present symptoms:
  • Headache 
  • Fever 
  • Light sensitivity of the eyes
  • Neck stiffness
Additional information:
Does your neck pain get worse when you push your chin towards the chest?
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Meningitis
ICD-10 A35
Medical condition Tetanus
Age 63 Years
Result identified
63-year-old male with tetanus
ICD-10: A35
Present symptoms:

  • Seizure

  • Hard abdominal wall

  • Swallowing difficulties

  • Accelerated heartbeat

  • Increased sweating

  • Restless behaviour

  • Irritability

  • Painful wounds

Additional information:
Do you know for a fact that you were vaccinated against tetanus and have since received all the necessary booster shots?
No
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Tetanus
  • Hypoglycaemia
ICD-10 B54
Medical condition Malaria
Age 28 Years
Result identified
28-year-old female with malaria
ICD-10: B54
Present symptoms:
  • Fever 
  • Chills
  • Diarrhoea
Additional information:
Have you been travelling in a tropical country for the last few weeks?
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Malaria
  • COVID-19 infection
ICD-10 M54
Medical condition General back pain
Age 35 Years
Result identified
35-year-old male with general back pain
ICD-10: M54
Present symptoms:
  • Lower back pain
  • Walking difficulties
Additional information:
Have you recently suffered an injury, while doing sports or at work, that seems to be connected to your symptoms?
No
Did you suffer any blunt force trauma to the affected area, such as a blow?
No
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • General back pain
ICD-10 J18
Medical condition Pneumonia
Age 6 Years
Result identified
6-year-old male with pneumonia
ICD-10: J18
Present symptoms:
  • Cough
  • Fever
  • Whistling breathing sounds
  • General malaise
Additional information:
Do you or your parents have asthma, neurodermatitis or a chronic allergic rhinitis?
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Pneumonia
  • COVID-19 infection
ICD-10 J45
Medical condition Asthma
Age 27 Years
Result identified
27-year-old female with asthma
ICD-10: J45
Present symptoms:
  • Breathing difficulties
  • Cough
  • Sleeping difficulties
  • Fatigue
Additional information:
Have you been suffering from such complaints regularly for a longer period of time?
Yes
Do you or your parents have asthma, neurodermatitis or a chronic allergic rhinitis?
Yes
Have you been taking glucocorticoids or steroids "cortisone" for a long time? These are contained, for example, in asthma sprays or medications for autoimmune diseases.
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Asthma
  • COVID-19 infection
ICD-10 i26
Medical condition Pulmonary embolism
Age 65 Years
Result identified
65-year-old male with pulmonary embolism
ICD-10: i26
Present symptoms:
  • Breathing difficulties
  • Chest pain
  • Swelling of the leg
  • Difference in leg circumference
  • Fever
  • Accelerated heartbeat
Additional information:
Have you had surgery in the past few weeks?
Yes
Have you recently had a period in which you haven't moved much (e.g. air travel or bed-riddenness)?
Yes
Did your symptoms start suddenly, from one moment to the next?
Yes
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 1. result
Conditions identified by XUND:
  • Pulmonary embolism
  • Pneumonia
  • COVID-19 infection
ICD-10 K75
Medical condition Acute hepatitis
Age 48 Years
Result identified
48-year-old female with acute hepatitis
ICD-10: K75
Present symptoms:
  • Confusion
  • Disturbed consciousness
  • Yellowing of the eyes
  • Abdominal pain
  • Tremors
  • Motor disorders
  • Fatigue
Additional information:
Has any medication been discontinued or started recently?
Yes
Did your symptoms start suddenly, from one moment to the next?
No
Have you been suffering from such complaints regularly for a longer period of time?
No
Source:
Evaluation of symptom checkers for self diagnosis and triage: audit study Hannah L Semigran, Jeffrey A Linder, Courtney Gidengil, Ateev Mehrotra 2015
Verified diagnosis identified as 2. result
Conditions identified by XUND:
  • Meulengracht's syndrome
  • Acute hepatitis

The knowledge of millions built into one health solution.

Step 1
Data analysis with AI

Our artificial intelligence can analyze millions of medical publications from the literature and process data on over 4,000 condition concepts.

Step 2
Review by doctors

Our team of doctors then verifies this information qualitatively and enriches it with reference literature and practical experience.

Step 3
Medical stress test

We verify our technology with thousands of real life case studies. This is the most objective way to test accuracy of our system.

Step 4
Usability tests

Through ongoing testing with real users, we ensure that our medical algorithms work as intended and meet the defined requirements.

Step 5
Release new version

We are continuously updating XUND in line with medical device regulations and to improve accuracy and coverage.

Want to know more? We have collected some of the most frequently asked questions for you.

Do you work together with medical doctors?

We have our own team of medical doctors who verify the quality of every single piece of information in the medical database based on reference literature and experience from the medical practice.

How do you ensure the quality of the medical content?

Our medical content is created and validated in cooperation with the Thieme Group, tailored to our offering. On top of that, we have our own team of medical doctors and editors who ensure we adhere to the highest quality.

Is all content created or reviewed by medical doctors?

Our technology is based on two pillars, one quantitative and one qualitative. Using AI, several million medical publications are analyzed and then reviewed again by our doctors with literature and practical experience. So it's the symbiosis of both worlds and our standardized quality assurance systems that make the difference.

What diseases do you cover?

Our AI can automatically analyze millions of medical publications and process data on over 4.000 medical conditions. However, in order to provide our users with statistically relevant and meaningful results, XUND prioritizes the most common medical conditions out of this dataset, which account for the vast majority of illness cases. Today, this is more than 500 illnesses.

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