HCUP-US Tools & Software Page

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html lang="en"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.hcup-us.ahrq.gov:80/toolssoftware/procedure/procedure.jsp","20140601044159","https://web.archive.org/","web","/_static/", "1401597719"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <title>HCUP-US Tools & Software Page</title> <link rel="stylesheet" href="/web/20140601044159cs_/http://www.hcup-us.ahrq.gov/HCUP_US.css"> <meta name="keywords" content="hcup, healthcare cost and utilization project, health, healthcare, health statistics, data analysis, analysis, data collection, data processing, databases, research">  <script type="text/javascript"> var steering = false; var team = false; var partner = false; var nhqrdr = false; </script> <script type="text/javascript" src="/web/20140601044159js_/http://www.hcup-us.ahrq.gov/menu/c_config.js"></script> <script type="text/javascript" src="/web/20140601044159js_/http://www.hcup-us.ahrq.gov/menu/c_smartmenus.js"></script>  </head> <body> <div id="skipmenu"> <a href="#skip" class="skippy">Skip Navigation</a> <a name="top"></a> </div> <div id="hideShow"> <table summary="layout" width="100%" cellspacing="2" cellpadding="0" border="0"> <tr> <td align="center" class="logoPanel" bgcolor="#006699"> <div id="logo"> <a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/"><img src="/web/20140601044159im_/http://www.hcup-us.ahrq.gov/images/HCUP_logo/hcuplogo_smaller_final.jpg" alt="Healthcare Cost and Utilization Project logo"></a> </div> </td> <td bgcolor="#66cccc" class="bannerPanel"><br> <div class="bannertitleinteriorpgs">Procedure Classes 2014</div> <div class="bannertext">Procedure Classes is one of the HCUP tools that can be applied to HCUP and other similar databases. These tools are created by AHRQ through a Federal-State-Industry partnership.</div> </td> <td bgcolor="#66cccc" valign="middle" class="searchPanel"> <form method="get" action="/web/20140601044159/http://www.hcup-us.ahrq.gov/search/Search.action"> <table cellpadding="0px" cellspacing="0px"> <tr> <td class="searchBox"> <input type="text" name="query"> </td> <td valign="middle" class="searchIcon"> <input type="image" src="/web/20140601044159im_/http://www.hcup-us.ahrq.gov/images/search-icon2.png" placeholder="Search" alt="search" class="search-icon" title="Search" width="10" height="11"> </td> </tr> </table> </form> </td> </tr> <tr> <td width="122" bgcolor="#66cccc"> </td> <td width="100%" colspan="2"><ul id="Menu1" class="MM"> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/"><br/>Home</a> <ul> <li><a class="NOLINK">What is HCUP?</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/overview.jsp">Overview of HCUP</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/overviewcourse.jsp">On-line HCUP Overview Course</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/faq.jsp">Frequently Asked Questions</a></li> </ul> </li> <li><a class="NOLINK">HCUP Products</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">HCUP Databases</a></li> <li><a href="https://web.archive.org/web/20140601044159/http://hcupnet.ahrq.gov/" target="_blank">HCUPnet</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tools_software.jsp">HCUP Tools & Software</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports.jsp">HCUP Reports</a></li> </ul> </li> <li><a class="NOLINK">HCUP Services</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Purchase HCUP Data</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/techassist.jsp">HCUP Technical Assistance</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/tutorials.jsp">HCUP On-line Tutorials Series</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp"><br/>Databases</a> <ul> <li><a class="NOLINK"><strong>Nationwide HCUP Databases</strong></a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">Nationwide Inpatient Sample (NIS)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/nisoverview.jsp">Overview of the NIS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?NIS">HCUP Partners in the NIS</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the NIS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/NationwideDUA.jsp">Nationwide Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the NIS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/nis/nisdbdocumentation.jsp">NIS Database Documentation </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/nis/nisrelatedreports.jsp">NIS Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">Kids' Inpatient Database (KID)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/kidoverview.jsp">Overview of the KID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?KID">HCUP Partners in the KID</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the KID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/NationwideDUA.jsp">Nationwide Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the KID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/kid/kiddbdocumentation.jsp">KID Database Documentation</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/kid/kidrelatedreports.jsp">KID Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">Nationwide Emergency Department Sample (NEDS)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/nedsoverview.jsp">Overview of the NEDS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?NEDS">HCUP Partners in the NEDS</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the NEDS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/NationwideDUA.jsp">Nationwide Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the NEDS</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/neds/nedsdbdocumentation.jsp">NEDS Database Documentation </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/neds/nedsrelatedreports.jsp">NEDS Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a class="NOLINK"><strong>State-Specific HCUP Databases</strong></a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">State Inpatient Databases (SID)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/sidoverview.jsp">Overview of the SID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?SID">HCUP Partners in the SID</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/StateDUA.jsp">State Database Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SID</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp">SID Database Documentation</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sidrelatedreports.jsp">SID Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">State Ambulatory Surgery and Services Databases (SASD)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/sasdoverview.jsp">Overview of the SASD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?SASD">HCUP Partners in the SASD</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SASD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/StateDUA.jsp">State Database Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SASD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sasddbdocumentation.jsp">SASD Database Documentation</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sasdrelatedreports.jsp">SASD Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/databases.jsp">State Emergency Department Databases (SEDD)</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/seddoverview.jsp">Overview of the SEDD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/partners.jsp?SEDD">HCUP Partners in the SEDD</a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SEDD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/team/StateDUA.jsp">SEDD Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SEDD</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sedddbdocumentation.jsp">SEDD Database Documentation</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/seddrelatedreports.jsp">SEDD Related Reports</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/tools_software.jsp">Tools &<br/>Software</a> <ul> <li><a class="NOLINK">Favorites</a> <ul> <li><a href="https://web.archive.org/web/20140601044159/http://hcupnet.ahrq.gov/" target="_blank">HCUPNet</a></li> <li><a href="https://web.archive.org/web/20140601044159/http://qualityindicators.ahrq.gov/" target="_blank">AHRQ Quality Indicators (QIs)</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/monahrq/monahrq.jsp">MONAHRQ</a></li> </ul> </li> <li><a class="NOLINK">HCUP Tools & Software</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/beta/icd_10_beta.jsp">ICD-10-CM/PCS Beta</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp">Clinical Classifications Software (CCS) for ICD-9-CM</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/ccs_svcsproc/ccssvcproc.jsp">Clinical Classifications Software (CCS) for Services and Procedures</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/icd_10/ccs_icd_10.jsp">Clinical Classifications Software (CCS) for ICD-10</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/mhsa/mhsa.jsp">Clinical Classifications Software for Mental Health and Substance Abuse (CCS-MHSA)</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/chronic/chronic.jsp">Chronic Condition Indicator</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/comorbidity/comorbidity.jsp">Comorbidity Software</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/procedure/procedure.jsp">Procedure Classes</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/util_flags/utilflag.jsp">Utilization Flags</a></li> </ul> </li> <li><a class="NOLINK">HCUP Supplemental Files</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/costtocharge.jsp">Cost-to-Charge Ratio (CCR) Files</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/hms/hms.jsp">Hospital Market Structure (HMS) Files</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/toolssoftware/revisit/revisit.jsp">HCUP Supplemental Variables for Revisit Analyses</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/ahalinkage/aha_linkage.jsp">American Hospital Association (AHA) Linkage Files</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/nis/nisownership.jsp">NIS Hospital Ownership Files</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/nis/nistrends.jsp">Nationwide Inpatient Sample Trends (NIS-Trends) Files</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/kid/kidtrends.jsp">Kid’s Inpatient Database Trends (KID-Trends) File</a></li> </ul> </li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports.jsp"><br/>Reports</a> <ul> <li><a class="NOLINK"><strong>Favorites</strong></a></li> <li><a class="NOLINK">HCUP Statistical Briefs</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/statbriefs/sbtopic.jsp">Topical list</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/statbriefs/statbriefs.jsp">Chronological list </a></li> </ul> </li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/infographics.jsp">HCUP Infographics</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports.jsp">HCUP Projections</a></li> <li><a class="NOLINK"><strong>Information About Using HCUP Data</strong></a></li> <li><a class="NOLINK">HCUP Methods Series</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/methods/methods_topic.jsp">Topical list</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/methods/methods.jsp">Chronological list </a></li> </ul> </li> <li><a class="NOLINK">HCUP Nationwide Database Reports</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/nis/nisrelatedreports.jsp">NIS </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/kid/kidrelatedreports.jsp">KID </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/nation/neds/nedsrelatedreports.jsp">NEDS</a></li> </ul> </li> <li><a class="NOLINK">HCUP State Database Reports</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sidrelatedreports.jsp">SID</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/sasdrelatedreports.jsp">SASD</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/db/state/seddrelatedreports.jsp">SEDD</a></li> </ul> </li> <li><a class="NOLINK"><strong>Additional Topics</strong></a></li> <li><a class="NOLINK">Topical Reports</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/r_e_disparities.jsp">Race/Ethnicity </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/mhsa.jsp">Mental and Substance Use Disorders </a></li> </ul> </li> <li><a class="NOLINK">HCUP Publications</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/pubsearch/pubsearch.jsp">Publication search </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/spotlights.jsp">Research Spotlights </a></li> <li><a href="https://web.archive.org/web/20140601044159/http://www.ahrq.gov/research/publications/">AHRQ Publications</a></li> </ul> </li> <li><a class="NOLINK">HCUP Archive</a> <ul> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports.jsp">Hospital Discharge Data report</a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/highlights.jsp">HCUP Highlights </a></li> <li><a href="/web/20140601044159/http://www.hcup-us.ahrq.gov/reports/factbooks.jsp">HCUP Fact Books </a></li> <li><a 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href="/web/20140601044159/http://www.hcup-us.ahrq.gov/overview.jsp">Healthcare Cost and Utilization Project (HCUP)</a>, a Federal-State-Industry partnership sponsored by the Agency for Healthcare Research and Quality. HCUP databases, tools, and software inform decision making at the national, State, and community levels. <br><br> Contents:<a name="return"></a> <ul> <li><a href="#overview">Overview of Procedure Classes</a></li> <li><a href="#purpose">Purpose</a></li> <li><a href="#description">Description</a></li> <li><a href="#time">Time Period Covered by Procedure Classes</a></li> <li><a href="#using">Using the Translation Files</a></li> <li><a href="#representation">Representation of ICD-9-CM Procedure Codes</a></li> <li><a href="#examples">Examples of Procedure Classes tool Usage</a></li> <li><a href="#download">Downloading Information</a></li> <li><a href="#questions">Questions?</a></li> </ul> </div> </td></tr> <tr><td><div class="texttitle"><a name="overview">Overview of Procedure Classes</a></div> <br> <div class="pagetext">The Procedure Classes provide users an easy way to categorize procedure codes into one of four broad categories: Minor Diagnostic, Minor Therapeutic, Major Diagnostic, and Major Therapeutic. <br><br> Procedure codes for this tool are based on the <em>International Classification of Diseases, 9th Revision, Clinical Modification</em> (ICD-9-CM), Fifth Edition (Public Health Service and Health Care Financing Administration, 1994). The ICD-9-CM consists of approximately 3,900 procedure codes. <br><br> This documentation provides an overview of the following: <ul> <li>The categorization scheme used by the Procedure Classes </li> <li>A description of downloadable, electronic files that contain the translation of ICD-9-CM procedure codes into Procedure Classes. </li> </ul> The Procedure Classes files are updated each year. The current version is based on ICD-9-CM procedure codes that are valid for January 1, 1980 through September 30, 2014. </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="purpose">Purpose</a></div> <br> <div class="pagetext">The Procedure Classes are created to facilitate health services research on hospital procedures using administrative data. This classification system allows the researcher to readily determine if (a) a procedure is diagnostic or therapeutic, and (b) a procedure is minor or major in terms of invasiveness and/or resource use.</div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="description">Description</a></div> <br> <div class="pagetext">The Procedure Classes assign all ICD-9-CM procedure codes to one of four categories: <ol> <li>Minor Diagnostic - Non-operating room procedures that are diagnostic (e.g., 87.03 CT scan of head) </li> <li>Minor Therapeutic - Non-operating room procedures that are therapeutic (e.g., 02.41 Irrigate ventricular shunt) </li> <li>Major Diagnostic - All procedures considered valid operating room procedures by the Diagnosis Related Group (DRG) grouper and that are performed for diagnostic reasons (e.g., 01.14 Open brain biopsy) </li> <li>Major Therapeutic - All procedures considered valid operating room procedures by the Diagnosis Related Group (DRG) grouper and that are performed for therapeutic reasons (e.g., 39.24 Aorta-renal bypass). </li> </ol> One file is necessary to assign Procedure Classes. This file is provided as an ASCII (DOS text) file. It can be applied to translate ICD-9-CM procedure codes into the four Procedure Classes, and includes three elements: ICD-9-CM procedure codes, ICD-9-CM code labels, and Procedure Class assignments. <br> <br> The contents of the file are described below:<br> <br> <table width="90%" align="center" border="1" cellspacing="2" cellpadding="2"> <tr> <td class="pagetext"><b>Filename</b></td> <td class="pagetext"><b>Purpose</b></td> </tr> <tr> <td class="pagetext">PC2014.CSV</td> <td class="pagetext">Comma-delimited translation file that maps ICD-9-CM procedure codes into Procedure Classes categories.</td> </tr> </table> </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="time">Time Period Covered by Procedure Classes</a></div> <br> <div class="pagetext">The ICD-9-CM codes are revised every October. New codes are added, existing codes are deleted, and definitions of current codes are changed. The four categories are revised annually, in response to ICD-9-CM changes. <strong>The FY 2014 version of the Procedure Classes is valid for the time period January 1, 1980 through September 30, 2014.</strong> Using the current Procedure Classes files with data outside this frame period may result in misclassification of ICD-9-CM codes.</div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="using">Using the Translation Files</a></div> <br> <div class="pagetext">The Procedure Classes translation file lists the ICD-9-CM procedure codes and their corresponding Procedure Classes. The file is in Comma Separated Value format (CSV) and can be viewed in a text editor or using Microsoft Excel. The manner in which this file may be applied varies by the type of software package. For example, in SAS, the files can be used to create a format through the command PROC FORMAT, which translates ICD-9-CM procedure codes into Procedure Classes. In SPSS, the translations can be adapted through the use of COMPUTE and VALUE LABELS statements or a series of RECODES. Sample <a href="#download">Stata programs</a> are provided below. <br/><br/> <strong>Calculating ORPROC:</strong> <em>Users who wish to identify discharges that contain an operating room procedure should follow the basic guidelines below:</em> <br/><br/> <ol> <li>The first step is to assign the Procedure Classes indicators to a dataset using the PC tool. This entails creating an array of Procedure Classes flags on each record that is equal in size to the number of procedures on the record. If a user has 15 procedures (PR1-PR15) on a given record, then 15 Procedure Classes flags should be created (PLCASS1-PCLASS15) . Each Procedure Classes indicator would be created using the corresponding procedure code array element (PCLASS5 would be created by examining the fifth procedure - PR5).</li> <li>Once an array of Procedure Classes flags are made for each record, users should loop through that array to find any instances where a procedure takes place in the Operating Room (PCLASS is 3 or 4). When an OR procedure is found, the ORPROC data element should be set to 1, otherwise it should be 0. </li> </ol> </div></td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="representation">Representation of ICD-9-CM Procedure Codes</a></div> <br> <div class="pagetext">In practice, ICD-9-CM procedure codes are represented by 3- or 4-character codes with explicit decimals. In the downloadable translation files, ICD-9-CM procedures are represented as 4-character alphanumeric codes with implicit decimals. These alphanumeric codes are enclosed in quotation marks in the translation files. Examples are presented below: <br><br> <table width="90%" align="center" border="1" cellspacing="2" cellpadding="2"> <tr> <td class="pagetext"><b>Procedure</b></td> <td class="pagetext"><b>ICD-9-CM procedure code</b></td> <td class="pagetext"><b>Alpha code (implicit decimals)</b></td> </tr> <tr> <td class="pagetext">Incision of prostate</td> <td class="pagetext">60.0</td> <td class="pagetext">'600 '</td> </tr> <tr> <td class="pagetext">Closed biopsy of prostate</td> <td class="pagetext">60.11</td> <td class="pagetext">'6011'</td> </tr> </table> <br> To assure that procedure codes are properly processed in the Procedure Classes, the following actions must be taken: <ul> <li>Alphanumeric procedure codes must be left-justified. </li> <li>One space must always follow a 3-character procedure code. </li> <li>Trailing blanks should never be zero-padded (i.e., blank spaces following a 3-character procedure code should not be filled with zeroes). </li> <li>Leading zeroes must be preserved; they are significant. </li> </ul> </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="examples">Examples of Procedure Classes tool Usage</a></div> <br> <div class="pagetext">The HCUP Procedure Classes tool is used in the risk adjustment approach for CMS' readmission measures that are now part of the Hospital Readmissions Reduction Program (HRRP). </div> <br> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="download">Downloading Information</a></div> <br> <div class="pagetext">The ASCII (DOS text) files for use with SAS or SPSS are available for download as <a href="pc2014.csv" target="_blank">pc2014.csv.</a> <br><br> <a href="StataProcClass.zip" target="_blank">Stata Procedure Classes Program</a> (ZIP file, 10 KB) </div> <br> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td><div class="texttitle"><a name="questions">Questions?</a></div> <br> <div class="pagetext">Questions regarding the Procedure Classes may be directed to HCUP User Support through the following channels: <ul> <li>e-mail: <a href="https://web.archive.org/web/20140601044159/mailto:hcup@ahrq.gov">hcup@ahrq.gov</a></li> <li>Phone (toll free): 1-866-290-HCUP.</li> </ul> </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> </table> <hr width="75%" align="center" class="hrruleblue"> <table width="100%"> <tr> <td align="center" class="citationtext"> Internet Citation: HCUP Procedure Classes. Healthcare Cost and Utilization Project (HCUP). March 2014. 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