0V7Q3ZZ
Dilation Vas Deferens, Bilateral to No Qualifier with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | V Male Reproductive System |
| Operation | 7 Dilation |
| Body Part | Q Vas Deferens, Bilateral |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Expanding an orifice or the lumen of a tubular body part
Procedure Overview
This family covers procedures that widen a narrowed passage within the male reproductive tract, most often the vas deferens or an ejaculatory duct. Scar tissue, congenital narrowing, or prior surgery such as a vasectomy can leave these small tubes partially or fully blocked, which stops sperm from moving normally and can cause infertility, pain, or swelling behind the blockage. A surgeon threads an instrument or balloon into the narrowed segment and stretches it open, sometimes leaving a temporary stent in place to keep the channel patent while it heals.
These procedures are usually pursued when a man and his partner are trying to conceive and testing has pinpointed an obstruction, or when imaging shows a stricture causing recurrent infection or discomfort. Because the tubes involved are extremely narrow, dilation is typically done under magnification as part of a larger reconstructive effort rather than as a stand-alone office procedure.
Anatomy & Axis Detail
Vas Deferens, Bilateral
Dilation of the vas deferens, bilateral, describes widening both ducts simultaneously, most often during reversal of a prior bilateral vasectomy or correction of bilateral obstructive fibrosis affecting fertility. Performing the dilation on both sides in the same operative episode reflects a coordinated attempt to restore sperm transport symmetrically, since unilateral patency alone may be insufficient to achieve pregnancy depending on sperm counts and quality. The bilateral designation applies only when both ducts are addressed during the same procedure; sequential unilateral dilations performed at different encounters would instead be coded individually under the right and left body part values. Given the microsurgical precision required to dilate this narrow-caliber structure without perforating or further scarring the duct wall, documentation typically specifies the technique, whether mechanical dilators, balloon catheters, or intraoperative probing during a vasovasostomy.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Coding & Documentation
Coders assign a Dilation code when the operative note describes stretching or enlarging an existing lumen without cutting away tissue or resecting a segment. The documentation should specify the exact structure dilated (vas deferens, ejaculatory duct) and whether a device such as a stent or balloon was left behind, since that changes the device value in the code. A frequent error is confusing dilation performed as one step of a vasovasostomy or vasoepididymostomy with the anastomosis itself; if the surgeon reconnects two cut ends, that reconstructive work is coded separately as Repair, not Dilation. Coders should also watch for cases where the narrowed segment is actually excised and the ends rejoined, which is Excision plus Repair rather than Dilation.
Commonly Confused With
Vasovasostomy and vasoepididymostomy are often confused with this family because dilation may occur as a preliminary step; the distinguishing factor is whether the operative goal is reconnecting divided structures (Repair) or simply opening a stricture in an intact tube (Dilation). Endoscopic dilation of the prostatic urethra for obstructive symptoms is coded in the urinary system, not here, since the urethra itself is not part of the male reproductive body system value.