Ambulatory Surgery - Diagnosis, Procedure, and External Cause Codes

This dataset contains statewide counts for every diagnosis, procedure, and external cause of injury/morbidity code reported on the ambulatory surgery data. Diagnosis codes are reported using ICD-9-CM or ICD-10-CM. Procedure codes are reported using CPT-4. External cause of injury/morbidity codes are reported using ICD-9-CM or ICD-10-CM. ICD-10 replaced ICD-9, effective October 1, 2015. Note: Physician-owned ambulatory surgery clinics do not report their data to HCAI and, therefore, are not included in the statewide frequencies.

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 cca666ac-f076-415a-8c90-e47ba010c66a
issued 2018-03-15T20:01:23.208618
modified 2022-04-22T16:00:54.722775
publisher Department of Health Care Access and Information
resource-type Dataset
source_datajson_identifier true
source_hash 35960f7e2ec8fbd8b8e32fc79bc3b86195b682b5
source_schema_version 1.1
theme {"Health and Human Services"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • ambulatory-surgery
  • amerigeo
  • amerigeoss
  • as
  • asc
  • ckan
  • cpt-4
  • current-procedural-terminology
  • department-of-health-care-access-and-information
  • diagnosis-code
  • external-cause
  • frequencies
  • geo
  • geoss
  • hcai
  • hospital
  • icd-10
  • icd-9
  • injury
  • international-classification-of-diseases
  • morbidity
  • national
  • north-america
  • procedure-code
  • 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 2025-11-20T21:32:58.700994
metadata_modified 2025-11-20T21:32:58.700998
notes This dataset contains statewide counts for every diagnosis, procedure, and external cause of injury/morbidity code reported on the ambulatory surgery data. Diagnosis codes are reported using ICD-9-CM or ICD-10-CM. Procedure codes are reported using CPT-4. External cause of injury/morbidity codes are reported using ICD-9-CM or ICD-10-CM. ICD-10 replaced ICD-9, effective October 1, 2015. Note: Physician-owned ambulatory surgery clinics do not report their data to HCAI and, therefore, are not included in the statewide frequencies.
num_resources 48
num_tags 25
title Ambulatory Surgery - Diagnosis, Procedure, and External Cause Codes