Billing Issues
Q: Why did I receive a duplicate denial on my remittance advice (ANSI code 18) when I have never received payment or denial on the claim?
A: Duplicate denials occur when a provider submits more than one claim for the same patient and the claim includes identical information such as date of service, type of service, procedure code, place of service, and billed amount. A claim may be denied as a duplicate when an Automated Development System (ADS) letter regarding a National Provider Identifier (NPI) mismatch has been sent to the provider and the provider resubmits the claim instead of responding promptly to the letter.
Prior to resubmitting any claim, a provider should check the status of the original claim by using the Provider Contact Center’s Interactive Voice Recognition (IVR) system by calling (877) 847-4992. Always allow at least two weeks (10 business days) after submitting a claim before using the IVR to check claim status. This action will prevent unnecessary delays in the processing of claims.
Please note that when a provider resubmits a claim before the original claim has finished processing, the duplicate claim denial may appear on a remittance advice before the finalized original claim does. This is because duplicate claims do not process through the Common Working File (CWF), and therefore are not held on the “payment floor.” The “payment floor” is a Centers for Medicare & Medicaid Services (CMS)-mandated waiting period for payment of clean claims. This waiting period is currently 13 days for Health Insurance Portability and Accountability Act of 1996 (HIPAA) compliant Electronic Media Claim (EMC) submissions and 28 days for paper claims, with payment made no sooner than day 14 or 29, as applicable. Many providers mistakenly assume that all clean claims are paid on the payment floor date; however, the payment floor date is actually the earliest day after the day of receipt of the clean claim that payment may be made. The Medicare Part B contractor has up to 30 days to process clean claims without paying interest to the provider. It is also important to note that if a claim stops in the system for any error or development, it is no longer considered a clean claim and may not process within these time frames.
Remember that providers have an obligation under law to conform to the requirements of the Medicare program. Billing that appears to be a deliberate application for duplicate payment for the same services or supplies in an attempt to get paid twice may be considered fraudulent. Providers are responsible for claims submitted to Medicare on their behalf by vendors and/or clearinghouses. Ultimately, Medicare holds the provider of service accountable for duplicate claim submission.
(Last Modified 7/1/08)
Sources: CMS Internet Only Manual (IOM) 100-04, Chapter 1, Sections 80.2.1.1 & 80.2.1.2 and 100-08, Chapter 4, Section 4.2.1.
Q: For therapy services, should the treatment encounter notes capture total timed code treatment minutes and total treatment time?
A: Yes, it is a requirement that the total timed code treatment minutes and total treatment time is captured in the treatment encounter notes. However, the amount of time for each specific intervention/modality provided to the patient is not required, as it is indicated in the billing. The billing and the total timed code treatment minutes must be consistent and, in addition, the identification of each specific intervention/modality provided and billed, for both timed and un-timed codes, needs to be recorded.
Example:
18 minutes of therapeutic exercise (97110)
13 minutes of manual therapy (97140)
10 minutes of gait training (97116)
8 minutes of ultrasound (97035)
13 minutes of manual therapy (97140)
10 minutes of gait training (97116)
8 minutes of ultrasound (97035)
Total treatment time: 49 minutes.
How to bill for the above example:
Appropriate billing is for 3 units. Bill the procedures you spent the most time providing. Bill 1 unit each of 97110, 97116, and 97140. You are unable to bill for the ultrasound because the total time of time units that can be billed is constrained by the total timed code treatment minutes (i.e., you may not bill 4 units for less than 53 minutes regardless of how many services were performed). You should still document the ultrasound in the treatment notes.
(Last Modified 2/27/08)
Source: CMS Internet Only Manual (IOM) Pub. 100-04, Chapter 5, Section 20.2
Source: CMS Internet Only Manual (IOM) Pub. 100-04, Chapter 5, Section 20.2
Q: Where can I find information on billing the correct place of service (POS) code and where do I enter the code on the CMS-1500 claim form?
A: The POS codes and definitions can be located in the CMS Internet Only Manual (IOM) Publication 100-04 Medicare Claims Processing Manual, Chapter 26, section 10.5 – Place of Service (POS) codes and definitions on page 19 (http://www.cms.hhs.gov/manuals/downloads/clm104c26.pdf
) and in the POS code database on the CMS Place of Service Codes Web page (http://www.cms.hhs.gov/PlaceofServiceCodes/03_POSDatabase.asp
). Please review both documents, as one may be more up to date than the other, due to possible revisions being made.
The POS code should be entered in Item 24B on the CMS-1500 (08/05) claim form.
It is important to ensure you bill the appropriate POS code on all claims to avoid potential overpayments. It is recommended you review your claims and systems for proper billing of the place of service codes. If you use an outside biller or clearinghouse, make sure they are billing all of your claims with the correct place of service code.
Remember: It is your responsibility to ensure your claims are billed correctly.
(Last Modified 09/23/08)
Source: CMS Internet Only Manual (IOM) Pub. 100-04, Chapter 26, Sections 10.4 & 10.5; CMS Place of Service Code Database.
Q: How is reimbursement affected by the place of service (POS) code billed on a claim?
A: The POS codes entered in Item 24B on the CMS-1500 (08/05) claim form can greatly affect reimbursement.
If services are performed in a facility, billing an incorrect place of service (e.g. an office location) can cause an overpayment situation. Examples of billing errors causing overpayments are providers who service patients in hospital outpatient facilities. Even though the provider’s office is physically located within the department, the services are provided in the facility. The provider should bill a POS code of 22 (Hospital Outpatient), not POS 11 (Office).
The same is true for an Ambulatory Surgical Center (ASC). If the individual provider bills a service rendered during an ASC covered procedure, the service should be billed with POS 24 (ASC facility), not POS 11 (Office). Even though the provider’s actual physical office is located in the ASC, the service was provided in the facility. The rationale is, unlike a group practice or individual’s office, providers operating from facilities have little to no overhead. The facility typically pays the overhead costs. Therefore, billing the facility POS and lower rate is appropriate, as the provider doesn’t incur the facility costs. The facility is reimbursed when billing their services.
If billing an incorrect place of service were to occur on a regular basis, not only can it affect immediate finances, it may be considered program abuse or fraud. If a provider is found guilty of fraud, monetary and civil penalties may be incurred, including but not limited to possible incarceration.
It is important to enter the appropriate POS code on all claims to avoid potential overpayments. It is recommended you review your claims and systems for proper billing of the place of service codes. If using an outside biller or clearinghouse, make sure they are billing all of your claims with the correct place of service code.
Remember: It is your responsibility to ensure your claims are billed correctly.
(Last Modified 09/23/08)
Source: CMS Internet Only Manual (IOM) Pub. 100-04, Chapter 26, Sections 10.4 & 10.5; CMS IOM Pub. 100-08, Chapter 4, Sections 4.2 & 4.6.2; CMS Place of Service Code Database.
Q: After the 60-day period, can the locum tenens physician take a day off and the 60-day period begin again?
A: CMS guidelines state that a regular physician may bill for the services of a locum tenens physician provided the following guidelines are met:
1. The regular physician is unable to provide visit services
2. The Medicare beneficiary has arranged for or seeks to receive services from the regular physician
3. The regular physician pays the locum tenens for services on a per diem or similar fee-for-time basis
4. The substitute physician does not provide services over a continuous period longer than 60 days.
• The only exception to the 60-day limit on substitute physician billing is for physicians called to active duty in the Armed Forces for services furnished from January 1, 2008 through June 30, 2008. Under section 116 of the “Medicare, Medicaid, and SCHIP Extension Act of 2007” (MMSE), enacted on December 29, 2007, a physician called to active duty may bill for substitute physician services from January 1, 2008 through June 30, 2008 for longer than the 60-day limit.
5. The Q6 modifier should be submitted on the claim
Note: If the regular physician requires the services of a locum tenens physician for a period longer than 60 days, then the substitute physician needs to enroll with the group. Otherwise the substitute physician taking a day off is not a consideration in the guidelines for locum tenens for establishing the 60-day period.
(Last Modified 09/23/08)
Source: CMS IOM Publication 100-04 – Medicare Claims Processing Manual, Chapter 1, Section 30.2.11
Q: I am a physician or non-physician practitioner employed by a group and also maintaining a private practice. How is my National Provider Identifier (NPI) number reported differently on a claim when billing as an individual versus billing as part of a group?
A: Billing individual and group NPIs is very similar to the previous process of billing with Provider Identification Numbers (PINs) and group numbers. However, there are distinct differences depending on how you submit claims to Medicare, whether electronic or paper.
Please refer to the chart below for instructions on submitting NPIs on your claims to Medicare:
Claims submitted on or after January 2, 2007
Type of Claim |
Submission Method |
NPI Billing Instructions |
|---|---|---|
Individual/Solo Practice |
Paper |
Individual NPI is placed in Item 33a of the CMS-1500 (08/05). |
Individual/Solo Practice |
Electronic |
The individual NPI number should be submitted in the billing provider loop (2010AA, NM109 with an XX qualifier in the NM108 element). |
Group |
Paper |
Individual NPI is placed in the lower portion of Item 24J and group NPI is placed in Item 33a of the CMS-1500 (08/05). |
Group |
Electronic |
The group NPI number should be submitted in the billing provider loop (2010AA, NM109 with an XX qualifier in the NM108 element) and the individual NPI number should be submitted in the rendering provider loop (2310B, NM109 with an XX qualifier in the NM108 element). |
(Last Modified 09/23/08)
Source: CMS Internet Only Manual (IOM) Publication 100-04 Medicare Claims Processing Manual, Chapter 26, Section 10.4
HIPAA ASC X12N 837 Professional guide – 4010/4010A Part B flat file;
CMS Medicare learning Network (MLN) Special Edition Article SE 0725
HIPAA ASC X12N 837 Professional guide – 4010/4010A Part B flat file;
CMS Medicare learning Network (MLN) Special Edition Article SE 0725
Q: On the Advance Beneficiary Notice (ABN) form, is the completion of the estimated cost field required?
A: Although CMS doesn’t mandate completion of the estimated cost field, it is in the best interest of the provider and the beneficiary to know the approximate costs. This enables the beneficiary to make an informed decision and should assist the provider when billing the patient if Medicare denies the charges.
(Last Modified 9/27/07)
Source: CMS Internet Only Manual (IOM) Publication 100-04 Chapter 30 Section 50.5.7

