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Last Modified: 4/4/2011
Location: FL, PR, USVI
Business: Part B
CO 18
Duplicate claim/service
(DUPLICATE CHARGE PAID ?002XX ON CLAIM ?001XXXXXXXXX)
(DUPLICATE CHARGE OF CLAIM ?001XXXXXXXXX NOW BEING PROCESSED)
(THIS IS A DUPLICATE OF A CHARGE WE HAVE PROCESSED)
(MORE THAN 1 E/M SERVICE BILLED ON THE SAME DAY)
Resources/tips for avoiding this denial
Before resubmitting a claim, check claims status through the Part B interactive voice response (IVR) system.
• Do not resubmit an entire claim when partial payment made; when appropriate, resubmit denied lines only.
Regarding evaluation and management (E/M) services, physicians in the same group practice of the same specialty must bill and be paid as though they were a single physician.
• Only one E/M service may be reported per patient, per day by a physician or by more than one physician of the same specialty in the same group, unless the evaluation and management services are for unrelated problems.
• If more than one face-to-face E/M is provided as indicated above, instead of billing separately, the physicians should select a level of service representative of the combined visits and submit the appropriate code for that level.
• Physicians in the same group practice but who are in different specialties (e.g., a cardiologist and a general practice physician) may bill and be paid without regard to their membership in the same group.
• See the Centers for Medicare & Medicaid Services (CMS) Internet-only manual (IOM), publication 100-04, chapter 12, section 30.6.5 
for additional details.
for additional details.The following educational resources are available through First Coast Service Options’ (FCSO) Medicare training website (www.fcsomedicaretraining.com) 
and FCSO’s Medicare provider website:
and FCSO’s Medicare provider website:
• FCSO also offers free educational sessions throughout the year, focused on particular billing issues you may be experiencing. These may include webcasts or seminars on avoiding duplicate claims for Part B.
• Visit the FCSO Medicare provider Events page to learn about upcoming events and our Webcast recordings page to link to encore presentations of webcasts conducted on this topic.
Tips to correct the denied claim
If submitting a claim to correct an error, be sure to submit only the corrected line. Resubmitting an entire claim will cause a duplicate claim denial.
• Ensure necessary appropriate modifiers are appended to claim lines.
• Refer to the Modifier FAQs here on the FCSO Medicare provider Website for additional information.
Please use your browser's back button to return to the referring page. Source: FCSO Education Action Team
