When should GC modifier be used?

Asked by: Ms. Fabiola Bartell  |  Last update: July 13, 2025
Score: 4.4/5 (60 votes)

Modifiers GC and GE are used to identify the involvement of a resident in the care of the patient. These modifiers should be used on Medicare and Medicaid patients whenever a resident is involved in the care provided. the resident during the key portions of service OR personally performs key portions of service.

When to use a GC modifier?

A GC Modifier is a modifier added to a CPT code for service(s) performed in part by a resident under the direction of a teaching physician (TP). When should the GC modifier be used? A GC Modifier is used when a resident, under the direction of a teaching physician, is involved in the management and care of a patient.

When should CG modifier be used?

Modifier CG should be reported only with the medical service HCPCS code that represents the primary reason for the medically necessary face-to-face visit when medical and preventive services are furnished on the same day.

What payers require a GC modifier?

Government payers (Medi-Cal and Medicare) require the GC modifier to be appended to E/M codes when a resident, under the direction of a teaching physician in an approved teaching program, is involved in the care of a patient.

Is the GC modifier only for Medicare?

Use is limited to use in Medicare, Medicaid, or other programs administered by the Centers for Medicare & Medicaid Services (CMS).

GD&T Modifiers: MMC, LMC and MMB in practice

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What is the difference between GE and GC modifier?

Modifier GC –This service has been performed in part by a Resident under the direction of a Teaching Physician. Modifier GE –This service has been performed by a Resident without the presence of a Teaching Physician under the Primary Care Exception.

What modifier is not accepted by Medicare?

GZ - Service is not covered by Medicare

The GZ modifier identifies that 1) an item or service is expected to be denied as not reasonable and necessary, and 2) no advance notice of non-coverage was supplied to the member.

Does Medicare require GP modifier?

It's important to note that while Medicare requires GP modifiers for outpatient physical therapy services, commercial plans may have different requirements. It's essential to verify the specific guidelines of each insurance company you work with.

Who is considered a teaching physician?

Teaching Physician means a physician (other than a resident) who involves residents in the care of his or her patients. 1.2. Fully licensed physicians who are not participating in a graduate medical education program recognized by the ACGME or ABMS may be considered Teaching Physicians.

Do you use a GC modifier in critical care?

Modifiers. When a resident is involved in a critical care service with a teaching physician and the teaching physician presence and documentation requirements are met, append modifier -GC (this service has been performed in part by a resident under the direction of a teaching physician).

How do I know which modifier to use?

The correct modifier to use is determined by payor preference. There can be instances where a CPT code is further defined by an HCPCS modifier, for example, to describe the side of the body the procedure is performed on, such as left (modifier -LT) or right (modifier -RT).

Does G2025 require CG modifier?

For distant site services rendered between January 27th, 2020, and June 30th, 2020, RHCs must bill G2025 with modifier CG. After July 1, RHCs will no longer need modifier CG. Furthermore, modifier 95 is completely optional for all G2025 claims.

How do you know if a code needs a modifier?

What Are Medical Coding Modifiers?
  • The service or procedure has both professional and technical components.
  • More than one provider performed the service or procedure.
  • More than one location was involved.
  • A service or procedure was increased or reduced in comparison to what the code typically requires.

When would you use a CG modifier?

You should report modifier CG on one line with a medical and/or a mental health HCPCS code that represents the primary reason for the medically necessary face-to-face visit. This line should have the bundled charges for all services subject to coinsurance and deductible.

What is the GC modifier for anesthesia?

GC - these services have been performed by a resident under the direction of a teaching physician. The GC modifier is reported by the teaching physician to indicate he/she rendered the service in compliance with the teaching physician requirements in section 9789.18.

Can a medical fellow bill for services?

For the specialty in which the fellow is studying, s/he is treated as a resident; i.e. you don't bill for those services under the fellow's name. However ... occasionally you may have a fellow who is already board certified in a different specialty and s/he may be billable in that area under the fellow's own NPI.

When to use GC modifier?

Modifiers GC and GE are used to identify the involvement of a resident in the care of the patient. These modifiers should be used on Medicare and Medicaid patients whenever a resident is involved in the care provided.

Which of the following is not acceptable documented from a teaching physician?

Following are examples of unacceptable documentation:

A legible countersignature or identity alone. Such documentation is not acceptable, because the documentation does not make it possible to determine whether the teaching physician was present, evaluated the patient, and/or had any involvement with the plan of care.

What is a teaching setting physician?

A teaching physician is a doctor who bills Medicare for services provided jointly with a resident as part of that resident's clinical training.

When to add GP modifier?

Every service performed by a physical therapist (PT), occupational therapist (OT), or speech-language pathologist (SLP) requires a therapy modifier (GP, GO, GN) for claim submission. So in this scenario, you would affix the GP modifier to the claim.

Does 97110 need a GP modifier?

Answer: The GP modifier is used to indicate that the services provided are part of an outpatient physical therapy plan of care. You should attach the GP modifier to CPT 97110 when billing for therapeutic exercises in an outpatient setting, which helps payers easily interpret the treatment as physical therapy-related.

Do telehealth visits need a modifier?

While this might seem complex, in most cases, billing for telemedicine will look largely similar to billing for in-person healthcare services. The main difference is the need to add a modifier.

What are three services not covered by Medicare?

We don't cover these routine items and services: Routine or annual physical checkups (visit Medicare Wellness Visits to learn about exceptions). exams required by third parties, like insurance companies, businesses, or government agencies. Eye exams for prescribing, fitting, or changing eyeglasses.

What are the most used modifiers in medical billing?

Understanding commonly used modifiers in medical billing is crucial for accurate reimbursement and avoiding claim denials. Modifiers such as 22, 25, 26, 33, 50, 51, and 59 play a significant role in communicating additional information about the services provided.

What is a QB modifier?

QB - Prescribed amounts of stationary oxygen for daytime used while at rest and. nighttime use differ and the average of the two amounts exceeds 4 liters per minute. (LPM) and portable oxygen is prescribed.