Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

ICD-10, ICD-10-CM, & ICD-10-PCS

ICD-10-CM and ICD-10-PCS are classification systems used for coding diagnoses, procedures, and services provided by the U.S. health care system.

Obtaining ICD-10-PCS Codes

The most direct source of the ICD-10-PCS code set is the Centers for Medicare and Medicaid Services. CMS is responsible for maintaining the ICD-10-PCS code set. There is no cost to download ICD-10-PCS from the CMS website. For convenience CMS also makes the ICD-10-CM code set available on this website, too, but it should be noted the National Center for Health Statistics is responsible for maintaining the ICD-10-CM code set.

ICD-10-PCS primarily consists of the ICD-10-PCS Official Guidelines for Coding and Reporting and the ICD-10-PCS Tables and Index.

The code set is also commercially published in both print and electronic format by a number of publishers and vendors.

Basic ICD-10-PCS Coding Steps

A crucial component of the ICD-10-PCS code set is the document, ICD-10-PCS Official Guidelines for Coding and Reporting. Before working with ICD-10-PCS, the user of ICD-10-PCS should become familiar with all of these guidelines. Additionally the ICD-10-PCS user needs to learn the conventions, rules, and definitions related to the code set.

Figure 1 outlines the basic ICD-10-PCS coding steps.  Refer to the official coding guidelines for additional information on steps 1, 2, and 3. In addition to the ICD-10-PCS Official Guidelines for Coding and Reporting, coding professionals should also be familiar with applicable coding advice found in American Hospital Association’s Coding Clinic for ICD-10-CM and ICD-10-PCS as well as relevant payer-specific coding guidelines and facility-specific coding guidelines.

Coding Resources

Coding Clinic for ICD-10-CM and ICD-10-PCS

American Hospital Association publishes Coding Clinic for ICD-10-CM and ICD-10-PCS. It contains coding advice as designated by the four Cooperating Parties (American Hospital Association, American Health Information Management Association, Centers for Medicare and Medicaid Services, and National Center for Health Statistics) and the Editorial Advisory Board. This quarterly newsletter is available for purchase at www.codingclinicadvisor.com/