1500X Surgical Prep & 14XXX ATT Codes

Question:

Is it appropriate to bill surgical preparation codes (1500X) with adjacent tissue transfer codes (14XXX)?

Answer:

Yes. Surgical preparation codes may be reported with adjacent tissue transfer (ATT) codes when the documentation supports that a separate and medically necessary wound‑bed preparation service was performed.

The Skin Replacement Surgery subsection guidelines state that “Surgical preparation codes15002–15005 for skin replacement surgery describe the initial services required to prepare a clean and viable wound surface for placement of an autograft, flap, skin substitute graft, or for negative pressure wound therapy.”

Since the definition specifically includes flap and adjacent tissue transfer, which is classified as a flap procedure, the combination is appropriate when both services are distinctly documented and not considered inherent to the ATT itself.

Thank you for reaching out to KZA!

*This response is based on the best information available as of 04/02/26.

ICD-10 - Asymmetry Not Following Reconstruction

Question:

Looking for some ICD-10 advice from KZA. In instances in which a patient presents to our practice for breast asymmetry following lumpectomy, and no reconstruction has been performed, is N65.1 appropriate to report? If not, what is the proper ICD-10 code?

Answer:

Great question! Since no reconstruction has been performed, the ICD-10 code N65.1 is not appropriate, as that code specifically applies to disproportion of a reconstructed breast.

For cases of breast asymmetry following lumpectomy without reconstruction, the most accurate code is N64.89, which includes other specified breast disorders and is appropriate for asymmetry unrelated to reconstruction.

Using the correct diagnosis code supports accurate documentation, billing compliance, and quality reporting. Misapplying codes such as N65.1 may result in claim denials or inaccurate clinical data.

Thank you for reaching out to KZA with your inquiry.

*This response is based on the best information available as of 03/05/26.

Denial - 19371

Question:

We received a denial for 19371 when billed with 19342 for an implant exchange to a smaller implant. Is the denial correct?

Answer:

This is a great question and a common scenario.

While coding guidance indicates that code 19371 may be reported in addition to code 19342, this is considered correct coding under CPT rules.

However, Medicare’s National Correct Coding Initiative (NCCI) bundles 19371 into 19342. Additionally, modifier 59 should not be appended to 19371 to bypass the NCCI edit when both procedures are performed on the same breast. The denial is correct when billing Medicare or payers that follow NCCI edits.

Thank you for reaching out to KZA with your inquiry!

*This response is based on the best information available as of 02/05/26.

Are There Special Documentation Requirements for an Assistant-at-Surgery?

Question:

We are seeking your advice on how to report to an assistant during surgery and what should be documented.

Answer:

Great question—this comes up often!

Two key points:

• If you are the assistant surgeon, you should not be dictating the operative note. That responsibility belongs to the primary or attending surgeon of record.

• The attending surgeon should include the assistant surgeon’s name in the designated assistant surgeon field and document the assistant’s role, providing details that support medical necessity.

Key takeaway: It is not sufficient to state, “Dr. XYZ assisted due to complexity.” This lacks specificity regarding the assistant’s role and does not describe the activities performed. Documentation should clearly outline what the assistant contributed during the procedure.

Determining the appropriate assistant modifier: both modifiers 80 and 82 indicate Assistant Surgeon. Modifier 82 is used explicitly in teaching hospitals with approved Graduate Medical Education (GME) programs for residents. In these settings, documentation must also confirm that no qualified resident was available to assist—this allows another physician to serve as the assistant surgeon, and modifier 82 should then be appended to that assistant surgeon’s claim.

In closing, please refer to your internal coding compliance guidelines to ensure adherence to the standards established by your compliance department.

Thank you for reaching out to KZA regarding your inquiry.

*This response is based on the best information available as of 01/22/26.

ICD-10 – Scar Contracture

Question:

Which ICD-10-CM diagnosis code should be reported for a patient undergoing release of a scar contracture on the flexor surface of the left elbow following healing from a third-degree burn?

Answer:

The scar contracture represents a sequela of the burn. According to ICD-10-CM guidelines, two codes should be reported:

1. L90.5 – Scar conditions and fibrosis of skin

2. T22.322S – Burn of third degree of left elbow, sequela

Key Points:

• ICD-10-CM guidelines instruct reporting the condition or nature of the sequela first, followed by the sequela code.

• Referenced guidelines: I.B.10 and I.C.19.d.7

In summary, reviewing ICD-10 guidelines ensures accurate coding and helps avoid common errors. These guidelines are a crucial resource for accurate code assignment.

Thank you for reaching out to KZA regarding your inquiry.

*This response is based on the best information available as of 01/08/26.

Complication: Back to OR

Question:

Can we bill separately for taking a patient back to the OR on postoperative day 2 to explore and repair a postoperative hemorrhage? I’ve heard that complications like this are usually included in the payment for the original surgery.

Answer:

Yes, you can bill for this. Both CPT and Medicare guidelines allow separate billing when a patient returns to the OR to treat a complication.

In this case, report the procedure code(s) for the services performed to address the postoperative hemorrhage. Be sure to append modifier 78 to indicate an unplanned return to the OR and assign the appropriate ICD-10 code for postoperative hemorrhage.

Thank you for reaching out to KZA regarding your inquiry.

*This response is based on the best information available as of 12/18/25.