CPT Code 42842 vs. 42844

Question:

I have a question. Which CPT code would I use? If local tissue rotational flaps isn’t done, Would we report CPT 42842 or CPT 42844? Is it appropriate to bill CPT 42844 if local tissue rotational flaps aren't performed? Per documentation. "We then commenced with primary closure of the defect with 3-0 Vicryl in a horizontal mattress fashion."

Answer:

Thank you for your great question. CPT code 42844 would not be appropriate code based on the documentation as written. Your note states: "primary closure of the defect with 3-0 Vicryl in a horizontal mattress fashion." This describes a primary/direct closure (approximating wound edges with sutures), not a local tissue rotational flap. These are fundamentally different techniques:

• Primary closure = suturing wound edges together

• Local tissue flap = mobilizing and rotating/advancing adjacent tissue to cover a defect (e.g., rotation flap, advancement flap, transposition flap)

A local tissue flap requires distinct documentation of flap design, elevation, rotation/advancement, and inset — none of which are described here. Based on the documentation the correct code to report is 42842.

*This response is based on the best information available as of 05/07/26.