Top Five Major Diagnostic Categories (MDCs) for California Hospitals

The dataset contains counts for the Top Five inpatient diagnosis groups based on Major Diagnostic Categories (MDCs) from the Patient Discharge Data (PDD) for each California hospital. Each MDC corresponds to a major organ system (e.g., Respiratory System, Circulatory System, Digestive System) rather than a specific disease (e.g., cancer, sepsis). The MDCs are also generally associated with a particular medical specialty. Therefore, the MDCs can be used to help identify what types of health care specialists are needed at each facility. For instance, a facility with “Circulatory System, Disease and Disorders” as one of their Top Five MDC diagnosis groups is more likely to have a greater need for cardiac specialists. The data will be updated on an annual basis.

Data and Resources

Field Value
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 25293803-aedf-4f00-8f06-acc947d05242
issued 2022-06-17T16:40:13.379426
modified 2022-07-26T22:42:31.699873
publisher Department of Health Care Access and Information
resource-type Dataset
source_datajson_identifier true
source_hash 219023cbf74770951e65a4b54f4cad4f33c7d30a
source_schema_version 1.1
theme {"Health and Human Services"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • department-of-health-care-access-and-information
  • geo
  • geoss
  • hcai
  • inpatient-hospitalizations
  • major-diagnostic-category
  • mdc
  • national
  • north-america
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer Department of Health Care Access and Information, Healthcare Analytics Branch
maintainer_email dataandreports@hcai.ca.gov
metadata_created 2025-11-22T13:59:16.214220
metadata_modified 2025-11-22T13:59:16.214224
notes The dataset contains counts for the Top Five inpatient diagnosis groups based on Major Diagnostic Categories (MDCs) from the Patient Discharge Data (PDD) for each California hospital. Each MDC corresponds to a major organ system (e.g., Respiratory System, Circulatory System, Digestive System) rather than a specific disease (e.g., cancer, sepsis). The MDCs are also generally associated with a particular medical specialty. Therefore, the MDCs can be used to help identify what types of health care specialists are needed at each facility. For instance, a facility with “Circulatory System, Disease and Disorders” as one of their Top Five MDC diagnosis groups is more likely to have a greater need for cardiac specialists. The data will be updated on an annual basis.
num_resources 3
num_tags 13
title Top Five Major Diagnostic Categories (MDCs) for California Hospitals