Final answer:
The primary diagnosis is determined using specific codes, and in this case, the primary diagnosis may be listed as X codes in medical coding.
Step-by-step explanation:
Primary diagnosis refers to the main medical condition or disease that is being treated or addressed. When it comes to medical coding, different codes are used to classify and categorize various diagnoses. In this case, the commonly used codes for primary diagnosis are X codes. These codes are used for conditions that are the primary reason for the patient seeking medical attention.
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