Endometriosis in cutaneous scar

This code describes the presence of endometrial tissue abnormally located within a scar on the skin. This typically occurs following surgical procedures, such as a C-section or hysterectomy, where endometrial cells may be inadvertently implanted into the incision site. Patients often present with a painful, palpable mass in the scar that may fluctuate with the menstrual cycle.

Use this code when the physician's documentation clearly identifies endometriosis specifically within a cutaneous (skin) scar. This diagnosis is often made clinically based on patient history and physical examination, and may be confirmed by biopsy. Supporting documentation should detail the location of the scar and the presence of endometrial tissue within it.

• Do not confuse with other forms of endometriosis (e.g., ovarian, peritoneal) unless also documented.
• Code the specific type of scar (e.g., surgical, traumatic) if documented and a more specific code is available.
• Consider an additional code for chronic pain if documented and clinically significant.