For more than 20 years, CRICO has analyzed claims and suits from the Harvard medical community to understand causes of error. We have learned that 67% of claims fall into four high risk areas: Diagnosis, Obstetrics, Surgery and Medication.
https://www.rmf.harvard.edu/Podcasts/MedMal-Insider-Home
Diagnosis and Communication: Closed Claim Abstract
Although this case involves a pediatric patient, the patient safety themes regarding problems with diagnosis and communication cut across many specialties and patient populations.