CPCA Coding for Laser Treatments Questions and Answers

Question 1

A patient undergoes a full-face CO2 ablative laser resurfacing procedure to treat severe photodamage and rhytides. The procedure removes the epidermis and penetrates the papillary dermis. Which CPT® code is most appropriate for this service?

Accepted Answer

15780 (Dermabrasion; total face)

Answer

The dermabrasion codes (15780-15783) are commonly used to report full-face or segmental ablative laser resurfacing. This is because, like dermabrasion, the procedure involves the removal of the epidermal and superficial dermal layers to promote skin rejuvenation. Payers often direct coders to use these codes for ablative laser procedures in the absence of a more specific code.

Question 2

When coding for the laser destruction of cutaneous vascular proliferative lesions, such as telangiectasias, using the 17106-17108 code set, what is the primary determinant for correct code selection?

Accepted Answer

The number of lesions treated

Answer

The CPT codes for destruction of cutaneous vascular proliferative lesions are distinguished by the number of lesions destroyed. CPT 17106 is for the first 10 lesions, with add-on code 17107 for each additional group of 10. The codes based on surface area (17106-17108 in some older descriptions, now corrected in CPT) are for a different type of lesion, and it's critical to distinguish between lesion count and area. The search results show conflicting information in titles, but the official descriptors and guidance differentiate by lesion type and measurement (count vs. sq cm). For telangiectasias, lesion count is often the key. However, for port-wine stains and hemangiomas, CPTs 17106-17108 are defined by square centimeters. Given the ambiguity and common use for various vascular issues, the most precise interpretation for *proliferative* lesions like hemangiomas follows the sq cm descriptor. Let's re-evaluate based on the most accurate CPT description. The description for 17106 is 'less than 10 sq cm', 17107 is '10.0 to 50.0 sq cm', and 17108 is 'over 50.0 sq cm'. Therefore, the area is the determinant. Let's correct the question and answer. New Question: When coding for the laser destruction of cutaneous vascular proliferative lesions (e.g., port-wine stains) using CPT codes 17106-17108, what is the primary determinant for correct code selection? New Correct Answer: The total surface area in square centimeters. New Explanation: The CPT codes 17106, 17107, and 17108 are specifically defined by the surface area of the treated vascular proliferative lesions. Code 17106 is for less than 10 sq cm, 17107 is for 10.0 to 50.0 sq cm, and 17108 is for over 50.0 sq cm. The number of lesions is the determinant for other lesion destruction codes, such as 17000 or 17110.

Question 3

A patient with numerous actinic keratoses on the face undergoes photodynamic therapy (PDT). The physician's staff applies a photosensitizing drug, which incubates for 60 minutes. The physician then personally administers blue light therapy to activate the drug. How should the physician's service for the PDT session be reported?

Accepted Answer

96573 (Photodynamic therapy... with local application and incubation... per day)

Answer

CPT code 96573 accurately describes the complete PDT service performed in the office, which includes the application of the photosensitizing drug, the required incubation period, and the subsequent light therapy administered by the physician or qualified healthcare professional. Code 96567 is incorrect because it specifies the patient applies the light source. The 17000 series codes are for other methods of destruction, not PDT.

Question 4

A patient receives a non-ablative fractional laser treatment on their full face to improve skin texture. This procedure heats the underlying dermal tissue to stimulate collagen production without removing the epidermal layer. Which of the following is the most appropriate CPT® code to report?

Accepted Answer

17999 (Unlisted procedure, skin, mucous membrane and subcutaneous tissue)

Answer

There is no specific CPT code for non-ablative laser resurfacing. Unlike ablative procedures, it is not analogous to dermabrasion (15780) because the epidermis remains intact. Therefore, the correct code is 17999, the unlisted procedure code for the skin. The claim must be submitted with comprehensive documentation detailing the service performed.

Question 5

A patient undergoes laser tattoo removal for a 15 sq cm black ink tattoo on the upper arm. Which CPT® code should be used to report this service?

Accepted Answer

17999 (Unlisted procedure, skin, mucous membrane and subcutaneous tissue)

Answer

Laser tattoo removal does not have a dedicated CPT code. The most appropriate code is 17999 (Unlisted procedure, skin, mucous membrane and subcutaneous tissue). Although CPT 15783's descriptor includes 'tattoo removal,' it specifies the procedure as dermabrasion, a mechanical method, not a laser-based one. Code 11920 is for the application of a tattoo, not removal.

CPCA Exam Practice Test

CPCA Exam Practice Test

CPCA Coding for Laser Treatments Questions and Answers