What manual is used for coding diagnoses?

The correct answer, ICD 10-CM, is essential for coding diagnoses because it specifically provides a standardized system for identifying various diseases, conditions, and health-related issues. This coding manual is utilized by healthcare providers, coders, and insurers to ensure accurate and consistent documentation of patients' diagnoses.

Utilizing the ICD 10-CM allows for efficient data collection, billing, and quality measurement within healthcare systems. Its structure includes a comprehensive list of codes that facilitate specificity in diagnosis classification, which is crucial for proper treatment planning and healthcare analytics.

In contrast, other choices serve different purposes. HCPCS (Healthcare Common Procedure Coding System) is primarily used for coding medical procedures, products, and services rather than diagnoses. CPT (Current Procedural Terminology) is focused on coding medical, surgical, and diagnostic services, allowing for efficient billing and communication among healthcare providers. DRGs (Diagnosis-Related Groups) are classification systems used for billing inpatient hospital stays based on diagnoses and procedures but do not provide the detailed coding needed for individual diagnoses themselves.

Thus, ICD 10-CM is the appropriate choice for coding diagnoses because it is explicitly designed for accurately capturing that critical aspect of patient care.