Cal. Code Regs. tit. 8 § 9789.16.5
Multiple surgeries are separate procedures performed by a single physician or physicians in the same group practice on the same patient at the same operative session or on the same day for which separate payment may be allowed. Co-surgeons, surgical teams, or assistants-at-surgery may participate in performing multiple surgeries on the same patient on the same day.
Multiple surgeries are distinguished from procedures that are components of or incidental to a primary procedure. These intra-operative services, incidental surgeries, or components of more major surgeries are not separately billable.
The following procedures apply when billing for multiple surgeries by the same physician on the same day.
* Report the more major surgical procedure without the multiple procedures modifier "-51."
* Report additional surgical procedures performed by the surgeon on the same day with modifier "-51."
There may be instances in which two or more physicians each perform distinctly different, unrelated surgeries on the same patient on the same day (e.g., in some multiple trauma cases). When this occurs, the payment adjustment rules for multiple surgeries may not be appropriate. In such cases, the physician does not use modifier "-51" unless one of the surgeons individually performs multiple surgeries.
The Multiple Procedure ("Mult Proc") column of the National Physician Fee Schedule Relative Value File contains a "2" to indicate procedures that are subject to the surgery multiple procedure payment reduction.
If a procedure is performed on the same day as another procedure, base the payment on the lower of (a) the actual charge, or (b) the fee schedule amount for the procedure reduced by the applicable percentage.
Rank the procedures subject to the multiple surgery rule (indicator "2") in descending order by fee schedule amount and apply the appropriate reduction to this code:
In cases of multiple interventional radiological procedures, both the radiology code and the primary surgical code are paid at 100 percent of the fee schedule amount. The subsequent surgical procedures are paid at the standard multiple surgical percentages (50 percent, 50 percent, 50 percent and 50 percent).
Endoscopy
The Multiple Procedure ("Mult Proc") column of the National Physician Fee Schedule Relative Value File contains a "3" to indicate procedures that are subject to special rules for multiple endoscopic procedures. For each endoscopic procedure with an indicator of "3", the Endoscopic Base Code ("Endo Base") column indicates the related base endoscopy code. Those codes that share a base code are in the same "family" and are "related."
Two codes billed: Endoscopic procedure and related base endoscopic procedure billed
If an endoscopic procedure is reported with only its base procedure, the base procedure is not separately payable. Payment for the base procedure is included in the payment for the other endoscopy.
Multiple Related Endoscopic procedures billed
If Multiple Procedure column contains an indicator of "3," and multiple endoscopies are billed, pay the full value of the highest valued endoscopy, plus the difference between the next highest and the base endoscopy. Access the Endo Base column to determine the base endoscopy.
EXAMPLE [dollar amounts are for illustration only]
In the course of performing a fiber optic colonoscopy (CPT code 45378), a physician performs a biopsy on a lesion (code 45380) and removes a polyp (code 45385) from a different part of the colon. The physician bills for codes 45380 and 45385. The value of codes 45380 and 45385 have the value of the diagnostic colonoscopy (45378) built in. Rather than paying 100 percent for the highest valued procedure (45385) and 50 percent for the next (45380), pay the full value of the higher valued endoscopy (45385), plus the difference between the next highest endoscopy (45380) and the base endoscopy (45378).
Assume the following fee schedule amounts for these codes:
45378 -- $255.40
45380 -- $285.98
45385 -- $374.56
Pay the full value of 45385 ($374.56), plus the difference between 45380 and 45378 ($30.58), for a total of $405.14.
Multiple Related and Unrelated Endoscopies or Other Surgical Procedures Billed
Apply the following rules where endoscopies are performed on the same day as unrelated endoscopies or other surgical procedures:
* Two unrelated endoscopies (e.g., 46606 and 43217): Apply the usual multiple surgery rules;
* Two sets of unrelated endoscopies (e.g., 43202 and 43217; 46606 and 46608): Apply the special endoscopy rules to each series and then apply the multiple surgery rules. Consider the total payment for each set of endoscopies as one service;
* Two related endoscopies and a third, unrelated procedure: Apply the special endoscopic rules to the related endoscopies, and, then apply the multiple surgery rules. Consider the total payment for the related endoscopies as one service and the unrelated endoscopy as another service.
If two or more multiple surgeries are of equal value, rank them in descending dollar order billed and base payment on the percentages listed above (i.e., 100 percent for the first billed procedure, 50 percent for the second, etc.)
If any of the multiple surgeries are bilateral surgeries, consider the bilateral procedure at 150 percent as one payment amount, rank this with the remaining procedures, and apply the appropriate multiple surgery reductions.
In cases of multiple interventional radiological procedures, both the radiology code and the primary surgical code are paid at 100 percent of the fee schedule amount. The subsequent surgical procedures are paid at the standard multiple surgical percentages (50 percent, 50 percent, 50 percent and 50 percent.)
If the patient returns to the operating room after the initial operative session on the same day as a result of complications from the original surgery, the complications rules apply to each procedure required to treat the complications from the original surgery. The multiple surgery rules would not apply.
However, if the patient is returned to the operating room during the postoperative period of the original surgery, not on the same day of the original surgery, for multiple procedures that are required as a result of complications from the original surgery, the complications rules would apply. The multiple surgery rules would also not apply.
Multiple surgeries are defined as separate procedures performed by a single physician or physicians in the same group practice on the same patient at the same operative session or on the same day for which separate payment may be allowed. Co-surgeons, surgical teams, or assistants-at-surgery may participate in performing multiple surgeries on the same patient on the same day.
Multiple surgeries are distinguished from procedures that are components of or incidental to a primary procedure. These intra-operative services, incidental surgeries, or components of more major surgeries are not separately billable.
Cal. Code Regs. Tit. 8, § 9789.16.5
Note: Authority: Sections 133, 4603.5, 5307.1 and 5307.3, Labor Code. Reference: Sections 4600, 5307.1 and 5307.11, Labor Code.