ICD-10-CM does not classify codes for hypertension by which of the following?

The correct classification of hypertension in ICD-10-CM does not include severity distinctions such as benign or malignant. In the ICD-10-CM coding system, hypertension is primarily classified based on its type—specifically whether it is primary (essential) or secondary to another underlying condition.

Understanding this helps to clarify that while hypertension codes address both whether it is primary or secondary, they do not categorize hypertension based on whether it is deemed benign or malignant. These terms usually apply more to conditions like tumors and cancers, rather than to hypertension. Therefore, when coding for hypertension, the focus remains on the underlying cause (primary or secondary) rather than a severity classification that would suggest benign or malignant designations.

This knowledge is vital for accurate coding and ensures that medical record documentation reflects the appropriate diagnosis without misinterpretation of the classification system's scope in relation to hypertension.