Thank you for the additional information! If that is ACOG's recommendation, I would consider it for the future, but would take each on a case-by-case basis.
The full description for 57135 is below, and I would still hesitate to use it for the original post. I interpret the original question as a vaginal polyp attached by a thin stalk that is snipped with scissors, and did not require sutures. The example you have seems a bit more involved.
57135 Excision of vaginal cyst or tumor
In this procedure, the provider surgically removes a cyst or tumor in the vaginal wall. This is a vaginal approach surgery.
Clinical Responsibility
The provider administers local anesthesia. The patient is in the dorsal lithotomy position. He cleans the area of the cyst with plain water or dilute vinegar, and the provider carefully examines the cyst/tumor area for excision under local anesthesia. The provider then makes an incision in the vaginal mucosa over the cyst or around the tumor. He excises the whole semisolid material, closed sac, of the cyst or fully excises the vaginal tumor along with supportive healthy tissues around the tumor. He may send a cyst sample to the laboratory for examination. Once the provider successfully excises the cyst or tumor, he closes the incision with absorbable sutures. Lastly, the provider may pack the vagina with bleached cotton cloth.