A denial rate is useful only when the practice defines it consistently and can trace each result back to a payer response, reason, owner, and next action. This guide explains common denial categories and a practical investigation workflow; payer instructions and deadlines still control each claim.
What is a claim denial?
A denial is an adjudicated payer decision not to pay all or part of a claim or service line. A rejection generally occurs before adjudication when a transaction is not accepted for processing. The applicable correction, resubmission, reopening, reconsideration, or appeal path depends on the current remittance and payer or program instructions.
Common root causes of denials
- Eligibility & coverage issues: inactive coverage, wrong plan, or coordination-of-benefits problems caught too late.
- Missing or invalid prior authorization: high-cost procedures billed without the required authorization.
- Coding errors: incorrect or unspecified ICD-10 codes, missing modifiers, or mismatched CPT/diagnosis pairings.
- Incomplete documentation: notes that don't support medical necessity for the service billed.
- Timely filing: claims submitted after the payer's deadline.
- Demographic & data entry mistakes: wrong member ID, DOB, or provider details.
How do you reduce your denial rate?
A durable denial-reduction program works on both ends of the revenue cycle:
- Strengthen the front end. Verify eligibility and benefits before the visit, and secure prior authorizations for procedures that require them.
- Review claims before submission. Apply current claim edits and payer requirements, investigate exceptions, and route documentation or coding questions to the appropriate owner.
- Code to supported specificity. Use the specificity supported by the documentation, current code set, setting, and applicable payer rules.
- Work denials by root cause. Categorize denials consistently, document the applicable correction or appeal path, and route recurring patterns to the responsible workflow owner.
- Track the metric. Monitor denial rate and time-to-resolution monthly, by payer and by reason code.
Why root-cause analysis matters
A well-managed revenue cycle treats each denial as a signal. If a payer repeatedly denies a service for missing information, the investigation should identify the responsible intake, documentation, coding, submission, or payer workflow instead of only reworking the same symptom.
Revyn's proposed denial workflow documents root cause, next action, status, owner, deadline, and recurring prevention feedback for the claims included in scope.