Which coding system is not used to characterize procedures performed on a patient?

The coding system that is not used to characterize procedures performed on a patient is the ICD-10-CM. This system is primarily designed for coding diagnoses and conditions, rather than outpatient procedures. It provides a comprehensive classification for the identification of diseases and health-related issues, enabling healthcare providers to report and track morbidity data. While it plays a vital role in documenting patient encounters, it does not encompass procedural coding.

On the other hand, the Current Procedural Terminology (CPT) is dedicated to coding medical, surgical, and diagnostic procedures and services. Similarly, the Healthcare Common Procedure Coding System (HCPCS) includes codes for a wide range of medical services and procedures, particularly those that are billable to Medicare and other health insurance programs. Logical Observation Identifiers Names and Codes (LOINC) is used for identifying health measurements and observations, such as laboratory tests and clinical observations, but does not specifically categorize procedures.

Understanding the distinct purposes of these coding systems is essential for accurate documentation and billing in health care settings.