The document reports on a study of diagnostic concordance between patients and doctors at a large public hospital in New York City. The study found that over half of patients' reported reasons for admission did not match the reasons documented in their medical records. Discordance was higher in older patients and those with fewer years of education. Around 10% of patients could not provide any reason for their admission. The study had a small sample size and was single-site, limiting conclusions. It suggests diagnostic reconciliation discussions and record audits to improve doctor-patient concordance.