Clinical Classifications Software (CCS) Software and User's Guide

QualityTool

Clinical Classifications Software (CCS) Software and User's Guide

Description

The Clinical Classifications Software (CCS) combines and aggregates codes from the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) into groups that can be employed in many types of projects analyzing data on diagnoses and procedures. The CCS tool is continually updated.

The CCS consists of the following classification systems:

  • Single-level CCS: Groups diagnoses into mutually exclusive categories. The single-level diagnosis CCS aggregates illnesses and conditions into 285 mutually exclusive categories. The single-level procedure CCS aggregates procedures into 231 mutually exclusive categories, most of which are homogeneous.
  • Multi-level CCS: Groups single-level CCS categories into broader categories (e.g., Infectious Disease, Mental Disorders, and Injury). It also splits single-level CCS categories to provide more detail about particular groupings of codes.

The CCS can be used to:

  • Identify cases for disease-specific or procedure-specific studies
  • Gain a better understanding of an institution’s or health plan’s distribution of patients across disease or procedure groupings
  • Provide statistical information on characteristics, such as changes and length of stay, about relatively specific conditions
  • Cross-classify procedures by diagnoses to provide insight into the variety of procedures performed for particular diagnoses

Developer:

Agency for Healthcare Research and Quality

Funding Sources:

Agency for Healthcare Research and Quality

History

Release Date: 2003
Review Date: 2011
Recent Summary: December 2011
Original Summary: November 2003
Last Updated: 12/07/11

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