PRACTICE RESOURCES > Coding and Reimbursement > Coding Tips > Coding Basics > Use of Unlisted Codes

Use of Unlisted Codes

Q.What is the best way to bill for a procedure when there is not an appropriate CPT® code available?

A.You must use an appropriate unlisted laparoscopic or urological procedure code and equate the procedure to another urological procedure that incorporates the same amount of time, skill and work to complete.

In CPT®'s urology section, these are the available unlisted procedure codes: 

51999 Unlisted laparoscopy procedure, bladder
50549 Unlisted laparoscopy procedure, renal
50949 Unlisted laparoscopy procedure, ureter
53899 Unlisted procedure, urinary system
55899 Unlisted procedure, male genital system

Since Medicare will not allow paper claims unless strict requirements are met, all claims must be submitted electronically and a request for further documentation will be sent to offices to support the billing of unlisted codes.

When a request for documentation has been received, use the following guidelines when submitting a claim where there is no specific CPT® code to describe the procedure:

Submit the operative report. To speed up the reimbursement process you should rewrite this report in layman's terms, as the reviewer may not have training in medical terminology. Make sure you include the following:

In addition to the operative report, include a cover letter that states the following:

 “We have researched the current CPT® Manual and there is no specific CPT® code that adequately describes the procedure performed; therefore, we must submit the unlisted CPT® procedure code, XXXX. We equate the procedure in time, skill and work involved to CPT® code (have the physician choose a CPT® code similar to the procedure performed).”

Give a brief explanation why the chosen CPT® code is similar to the procedure performed and then bill the amount of the chosen CPT® code. This will guide the claims processor to a better payment decision.

Commercial carriers may have a specific procedure to follow when billing unlisted procedures.

Q.How do you bill for a hand-assisted laparoscopy procedure?

A.There is no special code for hand-assisted laparoscopy procedures. Use the appropriate specific laparoscopy CPT® code for the procedure or the unlisted laparoscopy CPT® codes for the appropriate organ. If there is no unlisted laparoscopy code, use code 53899, Unlisted procedure, urinary system.

Q.My urologist is injecting botulinum toxin, type A into the bladder for spasms. What is the proper way to code for this procedure?

A.There is no specific CPT® code for the injection of botulinum toxin into the bladder. CPT® code 53899 should be used to capture this procedure. The HCPCS code is J0585. Since the use of this treatment is not approved by the FDA, some carriers will not reimburse for this due to its off-label use. Check with the carrier for any specific coverage questions. It may be necessary to have the patient sign an ABN in order to bill the patient for the treatment.

Q.My urologist is performing the Percutaneous Tibial Nerve Stimulation (PTNS). How do I code for this?

A.The AUA has a very clear and rigorous process for requesting review of and granting our official support to new or revised codes proposed by anyone, including industry. Manufacturers must submit all research studies and other evidence available for review to the AUA Coding and Reimbursement Committee (CRC) comprised of physician experts, who are required by the AUA to disclose all of their relationships with industry. In addition, the AUA Coding Hotline staff conducts extensive discussions with other certified coders and consultants before making a recommendation on a choice among codes that may be ambiguous. In the case of PTNS, we all agreed that the procedure being conducted does not completely match the description of CPT code 64555 as printed in the CPT manual. For example, the code descriptor for the 64555 includes an implantation of an electrode. As a result, our advice prior to May to those seeking advice in coding PTNS was to choose between the manufacturer's recommendation (64555) or the unlisted code (64999).

In recent months, with no direct input from AUA, Medicare and other payers have looked more closely at the physician work and practice expense RVU values included in 64555 and have concluded that the procedure commonly conducted by urologists does not include that amount of work or practice expense and therefore, these payers deemed 64555 inappropriate. As you know, in South Carolina, the Medicare carrier has taken what we consider the drastic step of asking for payments back for billing of 64555 by urologists. Due to our concern that our members may be inconvenienced by further reviews and requests for payments, a review of information distributed by the manufacturer and further contact with the American Medical Association was carried out. There was enough inconsistency to officially review this procedure for proper billing practices. The issue was placed on the AUA CRC agenda for the meeting in May. Prior to the May CRC meeting, a workgroup was convened to review all the U.S. peer-reviewed published literature on PTNS. Since the code descriptor for 64555 does not adequately describe the PTNS procedure, the AUA CRC Committee voted that the proper coding should be CPT 64999 unlisted, nervous system. In addition, CRC agreed to review any evidence submitted by the manufacturer that would justify an application for a new code for this procedure within the normal process described above.

So we are advising your members to use the unlisted code 64999 and equate this to a code chosen by your physician that mirrors the work value involved. (We are not recommending any codes). Do not bill out the programming code, there is no programming involved.

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