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McGraw-Hill Medical’s Diagnosaurus®

Differential Diagnosis Tool

Diagnosaurus® is a valuable quick reference tool that contains over 1,000 differential diagnoses. Available for iOS and Android, this application helps healthcare professionals reach accurate diagnoses with speed and confidence at the point of care.




Diagnosaurus® allows you to quickly search over 1,000 differential diagnoses by organ system, symptom, disease, or you can view all entries. The valuable "See Related DDx" feature within each listing helps you consider alternative diagnoses and quickly link to those entries. Convenient "Favorites" feature allows you to save specific searches and bookmark into a personal archive. The tool trusted by thousands of health care professionals including physicians, nurses, and students is available for iOS and Android.


  • More than 1000 differential diagnoses
  • Disease, symptom, or organ system searching
  • Personalized favorites
  • Cross Links connect related entries
  • Optimized interface each platform



Roni F. Zeiger, MD

iOS devices running iOS 12.2 or higher (iPad, iPhone)
Android devices running OS 7.0 or higher

Group Discounts

Find out about affordable site licenses and group discounts for your group or institution.

Group Discounts