The Coders’ Desk Reference for ICD-10-PCS Procedures 2027 addresses the challenge of translating common procedural nomenclature used by providers to the corresponding ICD-10-PCS coding terminology. Correct procedure coding is dependent on the ability of the coder to translate the terminology in provider documentation to the appropriate procedural terminology of ICD-10-PCS.
This resource is organized by common procedural nomenclature used in the hospital setting and linked to the related root operation table(s); the procedure is described in layman’s terms, translated to ICD-10-PCS root operation terminology, and the corresponding root operation table(s) is identified.
Brand new feature added to this 2027 Coders’ Desk Reference:
- New – Additional Illustrations at the code level. Additional Illustrations added of pertinent anatomy and surgical procedures are included to enhance understanding.
Exclusive Optum Edge features found in this ICD10 procedure code guide:
- Optum360 Edge — Lay description. Updated with the 2025 ICD-10-PCS codes, lay descriptions are provided for the most commonly performed inpatient procedures. Corresponding ICD-10-PCS root operations are identified and defined.
- Optum360 Edge — Clinical focus points. When more than one root operation may apply, key procedural terms differentiating the root operations are highlighted in focus points to ensure that the correct root operation is selected.
Additional features and benefits of Coders Desk Reference for ICD-10-PCS Procedures include:
- ICD-10-PCS Root Operation Grid. Provides the ICD-10-PCS root operations to assist in locating the PCS code you need.
- Abbreviations, acronyms, symbols, procedure eponyms and surgical. Better understand provider documentation and commonly used terms in these valuable tools for a better understanding of ICD-10-PCS coding.
- Ease of use. Developed to work hand-in-hand with your Optum360 ICD-10-PCS code book.
- Enhance understanding of ICD-10-PCS. The lay descriptions were developed to enhance understanding of the ICD-10-PCS terminology and definitions of root operations, body parts, approaches, devices, and qualifiers.
- Designed for novices and seasoned coders. The lay descriptions, illustrations, and other supplemental resources contained in this resource are designed for coders of all skill levels.








