In the ICD-10-CM tabular list, what should be reported first when a "code first" note is present?

When a "code first" note is present in the ICD-10-CM tabular list, it indicates that the underlying condition should be reported before any associated manifestation codes. This guideline directs coders to prioritize the underlying condition to ensure accurate representation of the patient's health status. Reporting the underlying condition first helps convey the primary reason for the diagnosis. Following this sequence is crucial for proper coding, as it ensures that the relationship between the condition and its manifestations is clear, which can affect treatment options and reimbursement.

The other options do not align with the instructions given by the "code first" note. For example, while combination codes and manifestation codes are important for describing the clinical picture, they should not take precedence over the underlying condition when indicated by the coding guidelines. Adhering to the guidelines prescribed in the ICD-10-CM ensures that the coding is precise, reflecting the patient's true clinical situation.