Denial Rate is defined as the ratio of:

• A. Number of claims or line items denied divided by number of claims or line items submitted
• B. Number of denied dollars divided by total billed dollars
• C. Number of denied claims divided by total submitted claims
• D. Number of submitted claims divided by total denied items

Answer: (A)

Denial Rate measures how often submitted work is rejected by payers. It is calculated by dividing the number of claims or line items denied by the number of claims or line items submitted. This item-based ratio captures the frequency of denials relative to submissions, which helps assess coding accuracy, documentation quality, and submission processes. Using dollars (denied dollars over total billed dollars) would show financial impact rather than how often denials occur, and using denied claims divided by total submitted claims can miss nuances when a single claim contains multiple line items. The item-based denial-to-submission ratio provides the most direct measure of denial frequency.