CPCA Coding for Laser Treatments 3 — Questions and Answers
Question 1: Which ICD-10-CM code category is most commonly linked to laser treatment for actinic keratosis to support medical necessity?
- L57.0 (Correct answer)
- L70.0
- L81.1
- L85.8
Correct answer: L57.0
ICD-10-CM code L57.0 (Actinic keratosis) is the primary diagnosis code used to establish medical necessity for laser destruction of premalignant sun-damaged skin lesions.
Question 2: Photodynamic therapy (PDT) using a photosensitizing agent applied to the skin is reported with which CPT code?
- 96567 (Correct answer)
- 96920
- 96521
- 17000
Correct answer: 96567
CPT 96567 reports photodynamic therapy by external application of light to destroy lesions of the skin and adjacent mucosa, which requires a separately reported photosensitizer.
Question 3: A surgeon performs laser ablation of condylomata acuminata in an ASC. Which CPT code best describes this service?
- 46900 (Correct answer)
- 54050
- 56515
- 17110
Correct answer: 46900
CPT 46900 reports destruction of lesions of the anus (condylomata, papillomata, molluscum, or other benign tumors) by simple means, including laser.
Question 4: When billing laser treatments in an ASC setting, which revenue code is typically used on a UB-04 for surgical laser procedures?
- 0360 (Correct answer)
- 0450
- 0320
- 0920
Correct answer: 0360
Revenue code 0360 (Operating Room Services) is typically used for surgical laser procedures performed in an ambulatory surgery center or hospital outpatient setting.
Question 5: A patient undergoes laser resurfacing of the full face for scarring. The physician separately reports Modifier 22 on the claim. What does this indicate?
- Bilateral procedure
- Reduced services
- Unusual procedural complexity requiring extra work (Correct answer)
- Repeat procedure by same physician
Correct answer: Unusual procedural complexity requiring extra work
Modifier 22 indicates that the service provided was substantially greater than typically required, justifying additional reimbursement beyond the standard fee.
Question 6: Which of the following is NOT bundled into a laser skin destruction CPT code and may be billed separately?
- Local anesthesia
- Shave removal before laser (Correct answer)
- Electrocautery for hemostasis
- Lesion measurement
Correct answer: Shave removal before laser
A shave removal (CPT 11300–11313) performed prior to laser destruction may be separately reportable with modifier 59 if it is a distinct, medically necessary service, whereas local anesthesia and routine hemostasis are bundled.
Question 7: Laser vaporization of the cervix for cervical dysplasia is reported with which CPT code?
- 57520
- 57513 (Correct answer)
- 57460
- 58559
Correct answer: 57513
CPT 57513 reports laser surgery of the cervix (includes loop electrode excision of transformation zone) specifically for laser vaporization treatment of cervical disease.
CPCA Coding for Laser Treatments 3
Which ICD-10-CM code category is most commonly linked to laser treatment for actinic keratosis to support medical necessity?