Which type of codes are used in ICD-10 to classify health conditions?

The correct answer is diagnosis codes. ICD-10, which stands for the International Classification of Diseases, 10th Revision, is a system specifically designed for classifying health conditions and diseases. It provides a comprehensive list of codes that detail various diagnoses, allowing for standardized reporting and statistical analysis of health data.

Diagnosis codes in ICD-10 are crucial for documenting patient conditions accurately, aiding in research, and influencing treatment approaches. They're utilized by healthcare providers to communicate diagnoses for insurance billing purposes, medical research, and public health reporting.

The other types of codes mentioned—procedure codes, billing codes, and consultation codes—do serve important functions in medical coding and billing, but they do not fall under the primary classification of health conditions as outlined in ICD-10. Procedure codes, for example, are part of the CPT (Current Procedural Terminology) system, while billing codes more generally pertain to the billing and reimbursement processes rather than the classification of health conditions themselves.