Coding & Billing

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Tips for Coding Lesion Excisions


The table below lists the many lesion and tumor excision coding options that exist with the 2010 CPT code changes. Although Medicare payment varies for the various skin and soft tissue lesion excision codes, you should focus on documenting, coding and billing these cases appropriately regardless of the payor and reimbursement. While the CPT 2010 code book contains many new codes and guidelines for the excision of lesions located beneath the dermis of the skin, the coding of skin lesions hasn't changed. Per the note above code 11400 in the code book, integumentary system codes 11400 to 11646 are still used for the "full-thickness (through the dermis) removal of a lesion."

The CPT 2010 code book gives us a more structured, organized approach to code the excising of lesions located in the subcutaneous tissue, fascial, subfascial and deeper soft tissues. These codes are for excising shoulder soft tissue lesions:

  • 23071. Excision, tumor, soft tissue of shoulder area, subcutaneous; 3cm or greater
  • 23073. Excision, tumor, soft tissue of shoulder area, subfascial (intramuscular); 5cm or greater
  • 23075. Excision, tumor, soft tissue of shoulder area, subcutaneous; less than 3cm
  • 23076. Excision, tumor, soft tissue of shoulder area, subfascial (intramuscular); less than 5cm
  • 23077. Radical resection of tumor (malignant neoplasm), soft tissue of shoulder area; less than 5cm
  • 23078. Radical resection of tumor (malignant neoplasm), soft tissue of shoulder area; 5cm or greater.

Before the CPT 2010 code book, noting the size of lesions was only required for the excision of skin lesions. But now that the revised and new soft tissue lesion excision codes include the size of the tumor, physicians will need to document the size of both skin and soft tissue lesions.

Documentation tips to follow Document this clinical information in the medical record when you excise a skin or soft tissue lesion:

  • the morphology of each lesion (benign, premalignant or malignant);
  • the dimensions of each lesion plus the margins required for complete excision of each lesion;
  • the anatomical site of each lesion;
  • the surgical technique used to remove each lesion (excision, shaving, destruction [indicate the method of destruction] or Mohs' micrographic surgery [chemosurgery]); and
  • the surgical technique used to close each lesion defect site (adhesive strip application, chemical or electrocauterization, simple repair, layer closure, complex repair, adjacent tissue transfer/rearrangement, skin graft application or skin substitute application).

Coding tips to keep in mind

  • Code separately the intermediate or complex repair of a skin lesion excision defect site.
  • Code separately the complex repair or reconstruction of a soft tissue lesion excision defect site.
  • Intermediate closure is used in instances when 1 or more layers of deep sutures are required to approximate dermis and/or obliterate space remaining within the subcutaneous tissue, in addition to a separate outer layer for fine epidermal/dermal approximation. Code wounds that require closure of subcutaneous tissue or more than 1 layer of tissue beneath the dermis as intermediate repair, unless the criteria for a complex closure are met.
  • Complex closure includes the following techniques: dog ears/Burrow's triangles repair; the layered repair of lacerations that also require debridement of wound edges before closure; extensive undermining to release and redistribute tension vectors to allow proper closure and to avoid uncertain distortion such as of the eyelid or lip.

CPT Coding Resource: Lesion and Tumor Surgical Excision

Anatomic Site

Skin Lesion

Subcutaneous Soft Tissue Tumors

Subfascial Soft Tissue Tumors

Radical Soft Tissue Tumors

Abdominal Wall

11400 to 11406, 11600 to 11606

22902, 22903

22900, 22901

22904, 22905

Ankle or Leg

11400 to 11406, 11600 to 11606

27618, 27632

27619, 27634

27615, 27616

Back or Flank

11400 to 11406, 11600 to 11606

21930, 21931

21932, 21933

21935, 21936

Ears

11440 to 11446, 11640 to 11646

69145

69145

69150, 69155

Elbow or Upper Arm

11400 to 11406, 11600 to 11606

24071, 24075

24073, 24076

24077, 24079

Eyelids

11440 to 11446, 11640 to 11646

67840

67961, 67966

67961, 67966

Face or Scalp

FACE:
11440 to 11446, 11640 to 11646
SCALP:
11420 to 11426, 11620 to 11626

21011, 21012

21013, 21014

21015, 21016

Fingers or Hand

11420 to 11426, 11620 to 11626

26111, 26115

26113, 26116

26117, 26118

Foot or Toes

11420 to 11426, 11620 to 11626

28043, 28039

28045, 28041

28046, 28047

Forearm or Wrist

11400 to 11406, 11600 to 11606

25071, 25075

25073, 25076

25077, 25078

Genitalia

11420 to 11426, 11620 to 11626

MALE:
54060, 54110, 54111, 54512
FEMALE:
56740, 57135

FEMALE:
56620 to 56640

FEMALE:
56620 to 56640

Hip or Pelvis

11400 to 11406, 11600 to 11606

27043, 27047

27045, 27048

27049, 27059

Knee or Thigh

11400 to 11406, 11600 to 11606

27327, 27337

27328, 27339

27329, 27364

Lips

11440 to 11446, 11640 to 11646

40500 to 40530

40500 to 40530

40500 to 40530

Neck or Anterior Thorax

NECK:
11420 to 11426,11620 to 11626
ANTERIOR THORAX:
11400 to 11406, 11600 to 11606

21552, 21555

21554, 21556

21557, 21558

Shoulder

11400 to 11406, 11600 to 11606

23071, 23075

23073, 23076

23077, 23078

SKIN LESION. In the CPT 2010 code book, there are paragraphical notes above code 11400 and code 11600 that state that these codes [11400 — 11646] classify the "Excision (including simple closure) of benign/malignant lesions of skin. Excision is defined as full-thickness (through the dermis) removal of a lesion, including margins, and includes simple (non-layered) closure when performed ... Repair by intermediate or complex closure should be reported separately."
SUBCUTANEOUS SOFT TISSUE TUMORS. In the CPT 2010 code book, there is a paragraphical note above code 20000 that states: "Excision of subcutaneous soft tissue tumors (including simple or intermediate repair) involves the simple or marginal resection of tumors confined to the subcutaneous tissue below the skin but above the deep fascia."
FASCIAL OR SUBFASCIAL SOFT TISSUE TUMORS. In the CPT 2010 code book, there is a paragraphical note above code 20000 that states: "Excision of fascial or subfascial soft tissue tumors (including simple or intermediate repair) involves the resection of tumors confined to the tissue within or below the deep fascia, but not involving the bone."
RADICAL RESECTION OF SOFT TISSUE TUMORS. In the CPT 2010 code book, there is a paragraphical note above code 20000 that states: "Radical resection of soft tissue tumors (including simple or intermediate repair) involves the resection of the tumor with wide margins of normal tissue."
Coding Tips
• Dissection or elevation of tissue planes to permit resection of the tumor are included in the excision.
• Extensive undermining or other techniques to close a defect created by skin excision may require a complex repair that should be reported separately.
• Appreciable vessel exploration and/or neuroplasty repair or reconstruction (adjacent tissue transfer, flap) should be reported separately.

How Would You Code This Case?

Pre-operative Diagnosis: Malignant melanoma, left forearm.
Post-operative Diagnosis: Same.
Operation: Excision, 6cm left forearm and complex repair.
Procedure: The patient was taken to the operating room, identified and placed on the recovery room table in the supine position. After administration of IV sedation, a wide field block was given about her left forearm. The lesion was excised with a #15 blade down to extensor muscle fascia. The specimen was marked, long for lateral and short for proximal, and passed off the field as a specimen. An additional specimen of subcutaneous tissue was taken at the deep margin. Hemostasis was meticulously obtained with the Bovie electrocautery. The total defect measured approximately 6cm by 3cm. Wide undermining was done with the Stevens scissors to allow advancement of skin flaps. The flaps were then advanced in the midline of the wound and closed with 3-0 Monocryl deep dermal sutures followed by 4-0 Monocryl running subcuticular stitch. Steri-Strips were applied followed by sterile dressings. The patient tolerated the procedure well, no intraoperative or immediate complications were noted. She was taken to the discharge area in stable condition.

CPT Codes:
25071 - Excision, tumor, soft tissue of forearm and/or wrist area, subcutaneous; 3cm or greater
14021 - Adjacent tissue transfer or rearrangement, scalp, arms and/or legs; defect 10.1cm2 to 30cm2

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