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Exam CPC topic 4 question 19 discussion

Actual exam question from AAPC's CPC
Question #: 19
Topic #: 4
[All CPC Questions]

A patient suffering from idiopathic dystonia is seen today and receives the following Botulinum injections: three muscle injections in both upper extremities and seven injections in six paraspinal muscles.
How are these injections reported according to the CPT® guidelines?

  • A. 64644, 64647 x 7
  • B. 64642-50, 64643-50, 64647
  • C. 64642, 64643, 64647
  • D. 64642 x 3, 64642 x 3, 64647 x 7
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Suggested Answer: C 🗳️
by Keyana at Jan. 18, 2025, 11:02 p.m.

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anddenren
1 month, 1 week ago
Selected Answer: C
One extremity, one additional extremity (1-4 muscle(s)), then one in the trunk muscle but for 6 or more. Modifiers would be redundant and misleading, by process of deduction it is a fairly simple situation where the complication of the other answers means way more shots than were actually administered.
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1aa99b1
1 month, 2 weeks ago
Selected Answer: B
B 646-50, 65643-50 , 64647 this likely reflects a convention where 50 is used to emphasize bilateral treatment of the upper extremities 64643 is a additional code making 50 neede
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anddenren
1 month, 1 week ago
You cannot denote a bilateral procedure with the modifier 50 when there is a lack of specificity in the code, also with that thinking they would not provide in the book a code for "each additional extremity" which is much more simplified for billing/coding purposes. Also you would not add the modifier to both codes because now it has become redundant and you are noting that there have been 6 shots in each arm for a total of 12 since you are modifying that each code happened bilaterally.
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Keyana
3 months ago
Selected Answer: C
7 injections such as Botox
upvoted 1 times
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