Which statement correctly describes ICD-10-CM sequencing guidance?

• A. Sequencing guidance explains how to file electronic claims.
• B. Sequencing guidance determines the order of diagnoses when multiple conditions exist.
• C. Sequencing guidance indicates which CPT modifiers to use.
• D. Sequencing guidance dictates the patient's eligibility.

Answer: (B)

Sequencing diagnoses means deciding the order of multiple codes to show which condition drove the visit and is most significant for the care provided. ICD-10-CM sequencing guides tell you how to arrange several diagnoses so the first-listed diagnosis represents the principal reason for the encounter, with any additional conditions coded in a specific order of importance or as required by rules for that encounter. This is why the correct statement is that sequencing guidance determines the order of diagnoses when multiple conditions exist. It isn’t about filing electronic claims, it doesn’t specify CPT modifiers, and it doesn’t determine patient eligibility.