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 H81.1
Medical condition Vertigo
Age 65 Years
Result identified
65-year-old female with vertigo
ICD-10: H81.1
Present symptoms:
  • Dizziness
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:
  • Vertigo
ICD-10 L20
Medical condition Atopic dermatitis
Age 12 Years
Result identified
12-year-old female with atopic dermatitis
ICD-10: L20
Present symptoms:
  • Itching
  • Dry skin
  • Crusts on the skin
  • Reddening of the skin
Additional information:
Do you have any known allergies?
Yes
Do you or your parents have asthma, neurodermatitis or a chronic allergic rhinitis?
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:
  • Atopic dermatitis
  • Non-servere allergic reaction
  • Skin fungus
ICD-10 M54
Medical condition General back pain
Age 38 Years
Result identified
38-year-old male with general back pain
ICD-10: M54
Present symptoms:
  • Lower-back pain
Additional information:
Have you had similar symptoms in the past that have disappeared again without any treatment?
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:
  • General back pain
ICD-10 B02
Medical condition Shingles
Age 77 Years
Result identified
77-year-old male with shingles
ICD-10: B02
Present symptoms:
  • Reddening of the skin
  • Rash
  • Blisters on the skin
  • General malaise
  • Headache
Additional information:
Do the blisters appear in small groups?
Yes
Does your rash have the shape of a stripe on one side of your body?
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:
  • Shingles
  • Non-severe allergic reaction
ICD-10 J44
Medical condition COPD
Age 67 Years
Result identified
67-year-old female with COPD
ICD-10: J44
Present symptoms:
  • Breathing difficulties
  • Cough
  • Fever
Additional information:
Do you smoke or have you been a smoker in the past?
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:
  • COPD
  • COVID-19 infection
  • Common cold
ICD-10 J01
Medical condition Sinus infection
Age 35 Years
Result identified
35-year-old female with sinus infection
ICD-10: J01
Present symptoms:
  • Sniffles
  • Facial pain
  • Runny nose
  • Overweight
Additional information:
Sit down and let your head hang down briefly between your legs. Is the pain on your face increasing?
Yes
Did your symptoms start suddenly, from one moment to the next?
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:
  • Sinus infection
  • Common cold
ICD-10 K25
Medical condition Stomach ulcer
Age 40 Years
Result identified
40-year-old male with stomach ulcer
ICD-10: K25
Present symptoms:
  • Abdominal pain
Additional information:
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:
  • Stomach ulcer
ICD-10 H00.0
Medical condition Sty
Age 30 Years
Result identified
30-year-old male with sty
ICD-10: H00.0
Present symptoms:
  • Eye pain
  • Swelling of the eyes
  • Red eyes
  • Knot in the eyelid
Additional information:
Have you recently suffered an injury, while doing sports or at work, that seems to be connected to your symptoms?
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:
  • Sty
  • Blepharitis
ICD-10 I63
Medical condition Stroke
Age 70 Years
Result identified
70-year-old male with stroke
ICD-10: I63
Present symptoms:
  • Speech disorders
  • Weakness of individual muscles
  • Paralysis
  • Forearm
  • Nausea
  • Vomiting
Additional information:
Did your symptoms start suddenly, from one moment to the next?
Yes
Are you aware of any heart disease?
Yes
Are you suffering from hypertension?
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:
  • Stroke
ICD-10 Z91.03
Medical condition Insect sting allergy
Age 9 Years
Result identified
9-year-old male with insect sting allergy
ICD-10: Z91.03
Present symptoms:
  • Swelling of the skin
  • Reddening of the skin
Additional information:
Did your complaint come recently after you were stung by an insect?
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 2. result
Conditions identified by XUND:
  • Boils
  • Insect sting allergy

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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