Question

multiple choice question

a category is a ______-character alphanumeric code that covers a single disease or related condition.

six
five
three
four

Explanation:

Identify the core medical coding concept

The question asks about the number of characters in a "category" within the ICD-10-CM coding system. We are applying ICD-10 Coding Guidelines to determine this structure.

Analyze ICD-10-CM code structure

An ICD-10-CM code is composed of three to seven alphanumeric characters:

• The first three characters represent the category of the disease or condition.
• Characters 4 through 6 represent subcategories (providing details like etiology, anatomical site, or severity).
• The 7th character represents an extension (such as episode of care).

Determine the category length

Since a category represents the basic three-character level that covers a single disease or closely related conditions, a category code is exactly three characters long (e.g., I10 for Essential hypertension).

Answer:

• six
• five
• three (Correct answer)
• four