When multiple conditions exist, how should the secondary diagnosis be chosen?

When multiple conditions exist, how should the secondary diagnosis be chosen?

• A. The primary diagnosis should reflect the main reason for the encounter; additional diagnoses support treatment and payer guidelines.
• B. The most recently diagnosed condition is always listed as the primary.
• C. Secondary diagnoses are optional and never impact billing.
• D. All diagnoses must be listed in order of severity, with the most severe as primary.

Answer: (A)