Introduction In medical billing, claim rejections and denials are inevitable—but understanding why they occur is the key to fixing them. One of the most important tools for decoding these denials is the Claim Adjustment Reason Code (CARC). Each CARC provides specific information about why a claim or a service line was adjusted, denied, or paid […]
co16 denial code description: The CO16 denial code is used in medical billing to indicate that a claim has been denied because it lacks necessary information or contains errors. It falls under the category of “Contractual Obligation” (CO) denials, which means the responsibility falls on the provider to fix the issue and resubmit the claim. […]