Test Your Modifiers Knowledge

Multiple Choice


Patient is seen in the office because of complications with his diabetes and thyroid. The doctor ordered lab work and performed a detailed history and examination with moderate MDM. The patient also had a skin tag that he asked the doctor to remove from his neck and is bothersome. What is the correct modifier used for this encounter?

a. 25

b. 59

c. 51

d. 54


Patient presented to the office one week ago (gobal days are 10 days) with a skin lesion on her scalp. It was excised at that time and sent to the pathologist. The pathology report came back as malignant and she is here today for a re-excision for complete removal of the lesion. What modifier would be used for this encounter?

a. 24

b. 25

c. 58

d. None would be used


Patient came into the Urgen Care Facility for ankle swelling, discoloration and pain. Patient had a collision with another player at softball practice. A two view xray was taken by our xray technician and it confirmed a trimalleolar ankle fracture. The ankle was manipulated and a walking cast was applied. The patient is to return next week for a follow-up visit with their PCP. The xrays are sent to the radiologist (who is not employed by the Urgent Care Facility) for interpretation and report. What modifier would be used by the radiologist?

a. TC

b. 26

c. 54

d. 58


Fifteen days ago the patient went to the Emergency Room for an ruptured appendix. The patient is here in my office today for redness and inflamation of his arm from a tattoo that he received a month ago. He has not had any vomiting or diarrhea. He has noticed some greenish color fluid coming from the inflammed area. He thinks he has a fever but did not take his temperature. Exam reveals skin of his arm is red, swelling and warm to touch. I have prescribed an antibiotic and he is to keep the area dry and apply neosporin 3 times per day. He did recently have his appendix removed but I do not believe it is related to his surgery. What modifier would the doctor use for this office visit?

a. 24

b. 25

c. 51

d. 79


This patient is from Nebraska and is visiting Yellow Stone National Park. He falls while hiking and the injury requires a open surgical fracture of his left humerus (code 23615). Surgery is performed by Doctor A. The patient is released two days later from the hospital and then seen by his home town doctor (Doctor B) in Nebraska for a post-op care. How are services billed by each Doctor A and Doctor B?

a. Doctor A 23615 for entire surgical package

b. Doctor A - 23615 - 54 Doctor B - 23615 -55

c. Doctor A - 23615 - 62 Doctor B - 23615 - 62

d. Doctor A - 23615 - 54 Doctor B - 23615 - 24


Which answer is TRUE for modifier 50?

a. This modifier is not used with designate add-on codes

b. This modifier is used to perform procedures on mirror-image of the body

c. This modifier is not used if the procedures indicates it is a bilateral procedure.

d. All of the answers above


Select the TRUE statement that defines per CPT why modifiers are reported?

a. Modifiers provides or indicates the procedure or service will be greatly increased in cost but not changed in its definition or code.

b. Modifier provides or indicates Evaluation and Management codes only have been altered but not changed in its definition or code.

c. Modifier provides or indicates procedure codes only have been altered but not changed in its definition or code

d. Modifier provides or indicates the service or procedure has been altered but not changed in its definition or code.


This Medicare patient is having laboratory performed. The diagnosis does not supports the test being ordered and Medicare will not pay for the services. The patient was informed Medicare will not pay, the patient opted to continue with lab test, and signed the ABN   What modifier would be added to the laboratory code?

a. 52

b. 90

c. 92

d. GA


Patient is having surgery for a mitral valve replacement. During the procedure the patient went into cardiac arrest and the procedure was terminated by the physician. Which modifier would be used for this service?

a. 53

b. 54

c. 22

d. 78


Nurse is preparing the patient for his colonoscopy. Patient informs the nurse he has taken all steps necessary for his prep. The doctor performs the colonoscopy but after advancing the scope past the splenic flexure the physician must stop the procedure because the patient did not fully cleanse the large intestine and he is unable to continue the procedure. What modifier would be attached to the procedure?

a. 52

b. 53

c. 58

d. 76


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