Can you bill an unrelated procedure during the postoperative care of a patient? You can, with the right modifier! Global period is one of the most confusing concepts in medical billing. Therefore, we understand your hesitation. Since it bundles postoperative care with the initial surgery, healthcare providers find it challenging to bill for additional procedures.
Modifiers are the solution for these complex billing scenarios. These two-digit codes improve your chances for faster approvals, providing additional essential details to the payers. Modifier 79 is important in such cases, guaranteeing proper reimbursements for separate and distinct operations. Let’s help you understand this modifier so you can use it accurately.
Modifier 79 – Description
Tired of insurance companies denying your claims for procedures unrelated to the initial surgery? You may not be using the correct modifier! Modifier 79 specifies a distinct procedure performed during a patient’s postoperative period. Distinct/unrelated and postoperative care are the key terms here.
Let us simplify them for you! An unrelated procedure here simply means that the secondary operation has no link to the initial diagnosis. However, it is usually performed by the same physician or doctors of the same specialty within a group practice.
On the other hand, the postoperative period is the recovery time followed by the initial surgery. During this time, healthcare providers monitor and manage complications and provide necessary follow-up treatments for pain or other symptoms. The duration of postoperative care depends on the type of surgery. However, it is usually:
- 0 or 10 days for minor procedures
- 90 days for major operations
Modifier 79 – Examples
If the detailed description of modifier 79 still hasn’t cleared up some of your confusion, you can refer to the following examples:
Unrelated Wrist Surgery During Knee Arthroscopy’s Postoperative Care
An orthopedic surgeon performed a knee arthroscopy (CPT code 29880) on a patient to diagnose and treat his painful knee condition. During postoperative care, the patient fell and broke his wrist. The same doctor then performed a wrist surgery.
Since the second operation was unrelated to the first, the doctors used modifier 79 with the wrist surgery’s CPT code to request a separate payment, 25645-79.
Unrelated Cataract Surgery on the Patient’s Right Eye
A patient with blurry or double vision undergoes cataract surgery on the left eye. During his postoperative care, he began experiencing the same problem in the right eye. Another ophthalmologist from the same group performs cataract surgery on the patient’s right eye. The practice bills for this operation with modifier 79 to show that it is unrelated to the first cataract surgery.
Since the CPT code for both surgeries is the same (66982), the practice also uses LT and RT modifiers to indicate the side of the operation. Therefore, the second unrelated procedure is billed as 66982-79-RT.
Unrelated Emergency Appendectomy
A general surgeon performed an inguinal hernia repair (CPT code 49505) on a child on January 25. Several days later, the child underwent an emergency appendectomy surgery (CPT code 44950). Since the second procedure was unexpected and unrelated to the initial surgery and performed by the same physician, the billing team used modifier 79 to request separate compensation, 44950-79.
Accurate Usage Guidelines for Modifier 79
Modifier 79 is beneficial for both payers and insurance companies. On one hand, this important code helps payers distinguish unrelated procedures from follow-up services during the patient’s postoperative care. On the other hand, it allows healthcare providers to receive separate and complete payment for their services.
But it is only possible if you use it accurately. So, how can you be sure that you are applying it correctly? By understanding the following guidelines:
Appropriate Uses of Modifier 79
Modifier 79 is only applicable if your surgical procedure meets the following three conditions:
- It is performed during the postoperative period of a prior operation,
- It is performed by the same healthcare provider or another qualified physician of the same specialty within the same group,
- It is unrelated to the original operation.
Keep in mind that a new postoperative care period begins with the use of modifier 79 for the second surgical procedure. However, the remainder of the original recovery phase is still applicable.
Also, make sure to use correct codes and provide all the supporting documentation to justify the need to perform unrelated procedures within the global period of initial surgery.
Inappropriate Uses of Modifier 79
The use of modifier 79 is also inappropriate in some cases:
- Avoid using this modifier when the second surgical procedure is either related to the initial surgery or part of a staged (anticipated) operation.
- Also, avoid attaching it with procedural codes with XXX indicator in the Medicare’s Physician Fee Schedule (PFS). This simply means that the global concept doesn’t apply to these codes.
- Do not use this modifier with Ambulatory Surgical Center (ASC) services.
Summary
To summarize, it is crucial for healthcare providers and practices to understand modifier 79, especially those who commonly bill for procedures performed within the postoperative care period. This two-digit code makes your claim specific and allows payers to identify unrelated operations from the original surgical procedures.
Otherwise, insurers would consider them a part of the global period, leading to underpayment. We have covered every detail of modifier 79 so you can adhere to billing guidelines and avoid billing penalties.
Frequently Asked Questions
