Loop conization (LEEP) removes and cauterizes a cone shaped section of the cervix. Both lesions could easily be included in the tissue removed (during one procedure). Therefore, one unit. http://www.atlasofpelvicsurgery.com/4Cervix/4ConizationoftheCervixbytheLoop/chap4sec4.html

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Thank you for the link! Awesome website! It is now included in my favorites. Now that I have read the specifics of the procedure, I understand that this procedure is designed to remove all abnormal tissue found in the cervix and cervical canal.

Backup RingSize Chart

Sealing Australia stocks a wide range of back-up rings to suit imperial and JIS metric sized o’rings. Compounds available: 90 Duro nitrile, 90 Duro Viton, Teflon and polyurethane.

Contoured back-ups are usually made of rubber and mimic the shape of an o’ring on one side to minimises distortion of the o’ring while under pressure.

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Hi. I am in an HIT program in a community college. The question I have is in regard to CPT® code 57522. The case study shows that two lesions were excised. One of the lesions was on the anterior cervix, the second was described as just "cervical"; so it is the same body part. There is no code that indicates the number of lesions excised. I do not know how to "capture" the two lesions, or if it is appropriate to do so. I do not see guidance for this in the CPT® manual or the handbook. Thanks in advance! Kim

Contoured back-ups are usually made of rubber and mimic the shape of an o’ring on one side to minimises distortion of the o’ring while under pressure.

Back-up rings (aka anti-extrusion rings) protect o’rings and help prevent extrusion in high pressure applications by closing the clearance gap and reducing friction by trapping lubricant in the area of the seal. Double acting applications (using bi-directional pressure) require the use of two back-up rings, one on either side of the o’ring.In single acting applications (single sided pressure) where only one back-up ring is required, the back-up is located on the low pressure side of the o’ring; although it is often recommended that two back-ups be used in single acting applications to mitigate the possibility of installing the back-up on the wrong side of the o’ring.