The CCCD standardizes how public health agencies assign a case counting date, improving consistency and comparability of disease incidence data across jurisdictions. 

The death data class captures information on whether a person has died, the date of death, and whether the reportable condition under investigation contributed to the death.  

Collecting accurate disability data ensures public health interventions are appropriately targeted and equitable.  

Public health surveillance routinely collects data on exposures, risk factors, and underlying health conditions to understand how diseases are acquired and how severe they may become.  

Hospitalization data, public health surveillance, and data standardization are essential for understanding disease severity and supporting consistent reporting across multiple conditions.  

Unique identifiers are essential for linking information for a case across records, systems, or agencies.  

Immunization history data are essential for monitoring vaccine-preventable diseases and supporting public health decision-making.  

Collecting work history in public health surveillance helps identify potential exposures, informs targeted workplace prevention messaging, and highlights occupational health disparities.  

Lab data often provide the first notification of a potential disease case and are essential for investigating, classifying, and responding to public health threats.  

Standardizing pregnancy data helps public health agencies better monitor disease impacts, improve outbreak response, and ensure timely follow-up for both maternal and infant health.  

The Social Determinants of Health (SDOH) data class in public health surveillance captures health-related social needs at the individual level, rather than community-level conditions. 

The Signs, Symptoms and Clinical Manifestations data class captures information about the clinical features of a disease, including objective signs observed by a clinician and subjective symptoms reported by the patient.  

The Travel data class captures information about an individual’s travel, including locations visited, dates, and potential exposure periods, during a time period relevant to a disease under investigation.