Modifiers are two-character suffixes either alpha or numeric. A modifier can also have both alpha and numeric values that are attached to a procedure code. CPT modifiers are defined by the American Medical Association (AMA). While HCPCS Level II modifiers are defined by the Centers for Medicare and Medicaid Services (CMS).
Like CPT codes, the use of modifiers also requires explicit understanding of different things including the purpose of each modifier. With the help of Modifiers, a change in procedure can be showed. In other words, Modifier actually indicates that the service or procedure has been altered by some specific circumstance, but there is no change in definition or code.
Use of modifier is not limited. More than one modifier can also be attached to a procedure code if applicable. People usually misunderstand that all modifiers can be used with all procedure codes but this is not the case. In addition to this, there is another misconception about Modifiers that they can be used to report services that are "similar" or "closely related" to a procedure code. This is also wrong, modifiers are not intended to do so.
Before I explain the QZ Modifier, I would like to give a brief explanation of Anesthesia, as these Modifiers have direct link to it. Most of us know that what an Anesthesia is, and if you don’t know then it is the administration of a drug or anesthetic agent by an anesthesiologist or Certified Registered Nurse Anesthetist, also known as CRNA.
It is used for medical or surgical purposes in order to relieve pain. This is not the only purpose of Anesthesia but it is also used to induce partial or total loss of sensation or consciousness during a procedure, this function of Anesthesia is known as its primary function.
In addition to Anesthesia, there is also supervised Anesthesia. When a physician will provide medical direction and oversight for a qualified anesthetist (CRNA) or a student performing anesthesia services, is known as supervised Anesthesia. The physician may supervise a CRNA, resident, or student nurse anesthetist in a single anesthesia case.
Besides this a physician may be medically directing 2, 3, or 4 concurrent procedures. In such case, specific modifiers exist to designate the medical direction provided, the number of cases which are supervised, and whether or not the CRNA services were performed under the supervision and medical direction of a physician.
Codes and Definitions
So now is the Modifier turn, MDA(QK/QY) and CRNA(QX/QZ). Firstly MDA modifiers , i.e. QK/QY
- Modifier QK Medical direction of 2, 3, or 4 concurrent anesthesia procedures involving qualified individuals
- Modifier QY Medical direction of one certified registered nurse anesthetist (CRNA) by an anesthesiologist
- Modifier QX is used for CRNA service which is there with medical direction by a physician
- Modifier QZ is used for CRNA service which is there without medical direction by a physician
Reimbursement Guidelines for QZ Modifier MDA(QK/QY) and CRNA(QX/QZ)
According to Medicare, the Coding Guidelines are:
“The Part B Contractor determines payment for the physician’s medical direction service furnished
on or after January 1, 1998, on the basis of 50 percent of the allowance for the service performed
by the physician alone.”
While as per Reimbursement Guidelines, the physician and the CRNA should use the appropriate modifiers to indicate the medical direction of anesthesia or supervised anesthesia services provided.
All Services that are submitted with modifiers QK, QX, and QY will be reimbursed at 50% of the applicable fee schedule rate. It is so because the supervision/services was shared between two providers.
In case of two anesthesia services claims for the same patient, same date of service, and no
medical direction/supervision modifiers are appended, only the first claim processed will be allowed.
While the second claim processed is subject to denial as services furnished by another provider.
There is no adjustment for reimbursement to the second anesthesia provider. It will not be processed until a corrected claim is received from the first anesthesia provider with the missing QK, QX, or QY modifier appended. The billing office for the denied claim is responsible to contact the billing office for the other anesthesia provider involved.
It is essential to use proper modifiers attached to the anesthesia codes while Claiming for supervision of residents and student nurse anesthetist .An MDA filing a claim for medical direction of a CRNA must meet all of the seven Medical Direction criteria as required by CMS. The MDA must:
- Perform a pre-anesthetic examination and evaluation;
- Prescribe the anesthesia plan;
- Personally participate in the most demanding procedures in the anesthesia plan, including, if applicable, induction and emergence;
- Ensure that any procedures in the anesthesia plan that he or she does not perform are performed by a qualified anesthetist;
- Monitor the course of anesthesia administration at frequent intervals;
- Remain physically present and available for immediate diagnosis and treatment of emergencies;
- All claims for anesthesia services must be billed on a 1500 claim form.
- The actual number of anesthesia minutes will be reported as the number of units. The payment modifiers (AA, QY, QK, QZ & QX) must be in the first modifier position on the claim.
- Claims submitted without a payment modifier will be returned to the provider.
- When both a CRNA and an MDA claim using these modifiers are received for a single anesthesia case, WSI will request documentation to support payment of the full fee for both providers.
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