Differentiate CPT and ICD-10-CM with a brief example of each and explain their roles in coding.

• A. CPT codes describe diagnoses (e.g., I10); ICD-10-CM codes describe procedures (e.g., 93000 EKG).
• B. CPT codes are used for medications; ICD-10-CM codes are used for billing quantities.
• C. CPT codes describe procedures/services (e.g., 93000 EKG); ICD-10-CM codes describe diagnoses (e.g., I10 for essential hypertension).
• D. CPT and ICD-10-CM codes are the same.

Answer: (C)