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Number of Cancer Surgeries (Volume) Performed in California Hospitals

Published by Department of Health Care Access and Information | State of California | Metadata Last Checked: November 28, 2025 | Last Modified: 2025-11-07T03:23:58.462215
The dataset contains the number (volume) for 11 types of cancer (bladder, breast, brain, colon, esophagus, liver, lung, pancreas, prostate, rectum, and stomach) surgeries performed in California hospitals. Data are reported for January – September 2015 due to coding changes from ICD-9-CM to ICD-10-CM/PCS for procedures, which began 10/1/2015. Comparisons across years should be made with caution since previous years’ results are based on 12 months of data, while this analysis is based on 9 months of data. The 2015 data may differ from previous years due to the coding change. For all types of cancer surgeries, except breast cancer, the dataset contains surgeries performed in the inpatient hospital setting. For breast cancer surgeries, this dataset includes procedures performed in inpatient and outpatient settings.

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Complete Metadata
@type dcat:Dataset
accessLevel public
contactPoint 
                                            {
  "fn": "Department of Health Care Access and Information, Information Services Division / Healthcare Analytics Branch",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:dataandreports@hcai.ca.gov"
}
description The dataset contains the number (volume) for 11 types of cancer (bladder, breast, brain, colon, esophagus, liver, lung, pancreas, prostate, rectum, and stomach) surgeries performed in California hospitals. Data are reported for January – September 2015 due to coding changes from ICD-9-CM to ICD-10-CM/PCS for procedures, which began 10/1/2015. Comparisons across years should be made with caution since previous years’ results are based on 12 months of data, while this analysis is based on 9 months of data. The 2015 data may differ from previous years due to the coding change. For all types of cancer surgeries, except breast cancer, the dataset contains surgeries performed in the inpatient hospital setting. For breast cancer surgeries, this dataset includes procedures performed in inpatient and outpatient settings.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Number of Cancer Surgeries (Volume) Performed in California Hospitals (CSV)",
    "format": "CSV",
    "mediaType": "text/csv",
    "describedBy": "https://data.ca.gov/api/action/datastore_search?resource_id=367260d1-052b-4f96-84e5-1bbb47bac167&limit=0",
    "description": "The dataset contains the number (volume) for 11 types of cancer (bladder, breast, brain, colon, esophagus, liver, lung, pancreas, prostate, rectum, and stomach) surgeries performed in California hospitals annually.  Data are reported for January – September 2015 due to coding changes from ICD-9-CM to ICD-10-CM/PCS for procedures, which began 10/1/2015. Comparisons across years should be made with caution since previous years’ results are based on 12 months of data, while this analysis is based on 9 months of data. The 2015 data may differ from previous years due to the coding change.  For all types of cancer surgeries, except breast cancer, the dataset contains surgeries performed in the inpatient hospital setting.  For breast cancer surgeries, this dataset includes procedures performed in inpatient and outpatient settings.",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/f3d8578f-a9bf-4f6a-a224-7e5b522cbd76/download/ca-oshpd-cancer-surgeries-gachospitals-20132024_odp.csv",
    "describedByType": "application/json"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Data Dictionary - Number of Cancer Surgeries (Volume) Performed in California Hospitals (CSV)",
    "format": "CSV",
    "mediaType": "text/csv",
    "description": "Data Dictionary for https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/f3d8578f-a9bf-4f6a-a224-7e5b522cbd76/download/ca-oshpd-cancer-surgeries-gachospitals-20132024_odp.csv",
    "downloadURL": "https://data.ca.gov/datastore/dictionary_download/367260d1-052b-4f96-84e5-1bbb47bac167",
    "isDataDictionary": true
  },
  {
    "@type": "dcat:Distribution",
    "title": "2015 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Data is from January to September in 2015.",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/b742d6f6-6e24-4357-aa01-36d419390a11/download/california-cancer-procedure-hospital-volume-2015.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Data Dictionary for Cancer Surgery",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "The dataset contains the number (volume) for 11 types of cancer (bladder, breast, brain, colon, esophagus, liver, lung, pancreas, prostate, rectum, and stomach) surgeries performed in California hospitals in 2013-2015.  Data are reported for January – September 2015 due to coding changes from ICD-9-CM to ICD-10-CM/PCS for procedures, which began 10/1/2015. Comparisons across years should be made with caution since previous years’ results are based on 12 months of data, while this analysis is based on 9 months of data. The 2015 data may differ from previous years due to the coding change.  For all types of cancer surgeries, except breast cancer, the dataset contains surgeries performed in the inpatient hospital setting.  For breast cancer surgeries, this dataset includes procedures performed in inpatient and outpatient settings.",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/0165b232-a59c-4a3e-a384-2f525a773860/download/data_dictionary_for_cancer_surgery.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2021 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/08164855-3f35-4089-8dce-c32132303e63/download/california-cancer-procedure-hospital-volume-2021_ada.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2018 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/170ad7a7-1b9d-471a-a4a7-f608570f687e/download/california-cancer-procedure-hospital-volume-2018_ada.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2020 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/1ca5e0c8-fbf3-4ccb-aefa-bdfa3f063019/download/california-cancer-procedure-hospital-volume-2020_ada.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2019 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/23109789-8e9a-4df5-abf0-337c3aa37f65/download/california-cancer-procedure-hospital-volume-2019_ada.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2022 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/5f50cd09-28c8-49d3-9eec-329cecb1ed4b/download/california-cancer-procedure-hospital-volume-2022.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2023 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/79b62919-fa85-495d-9d26-3279ac0e9104/download/california-cancer-procedure-hospital-volume-2023b.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2013 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/8ffc0d01-4778-4bd7-9136-4a0dabab6f96/download/california-cancer-procedure-hospital-volume-2013.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "All resource data",
    "format": "ZIP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/a7bb99d3-4222-45b6-ba0a-e42afffd2aed/download/number-of-cancer-surgeries-volume-performed-in-california-hospitals-uwlo1zym.zip"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Cancer Surgery Volume Methodology - ICD 10 and CPT Codes",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/a7db071d-c957-4e49-ba4e-9f5d400c9257/download/cancersurgeryvolume-methodologyicd10-codesjune2018final.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2016 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/c427327e-dbe8-4dd0-9c22-8e1da338e342/download/california-cancer-procedure-hospital-volume-2016_ada.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2014 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/eb089cf1-defb-42df-8f84-58169d68f31a/download/california-cancer-procedure-hospital-volume-2014.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Technical Notes",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/f6f8555d-7ffc-4cb5-8043-50c0c5efb4ff/download/technicalnotes_cancersurgeries.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2017 Table",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.chhs.ca.gov/dataset/dace89fc-69ec-4fe8-a8f4-ddfbdb053020/resource/fc11f8b1-1026-4230-8613-9141e27031f3/download/california-cancer-procedure-hospital-volume-2017_ada.pdf"
  }
]
identifier b96016bc-debd-45a6-8d8f-59ed48ae7c47
issued 2017-06-16T22:22:02.353718
keyword 
                                            [
  "bladder",
  "brain",
  "breast",
  "cancer",
  "cancer treatment",
  "colon",
  "department of health care access and information",
  "esophagus",
  "healthcare outcomes",
  "liver",
  "lung",
  "pancreas",
  "prostate",
  "rectum",
  "stomach",
  "surgery",
  "volume"
]
license http://www.opendefinition.org/licenses/cc-by
modified 2025-11-07T03:23:58.462215
publisher 
                                            {
  "name": "Department of Health Care Access and Information",
  "@type": "org:Organization"
}
theme 
                                            [
  "Health and Human Services"
]
title Number of Cancer Surgeries (Volume) Performed in California Hospitals

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