CPT Code 58100: Endometrial Biopsy, Without Dilation

CPT code 58100 represents endometrial biopsy without cervical dilation, involving tissue sampling from the uterine lining to diagnose conditions like abnormal bleeding or cancer using methods such as pipelle or suction curette without cervical widening.

58100 applies to endometrial biopsy without cervical dilation, while 58120 covers dilation and curettage (D&C) requiring cervical dilation (e.g., for cervical stenosis). Code 58120 includes dilation and biopsy, whereas 58100 is for straightforward biopsies without dilation.

There is no specific CPT code for endometriosis testing. Diagnosis typically requires laparoscopy with biopsy and histopathology of excised tissue. Endometrial biopsy (58100) examines the uterine lining but does not directly diagnose endometriosis.