Refer to the CPT Assistant below:
Breast reconstruction tissue expansion
CPT Assistant, August 2005 Page: 2 Category:
Tissue Expansion
The most common technique of breast reconstruction involves placement of a tissue expander, an uninflated balloon-like device, beneath the skin and chest muscle. The expander, which may be temporary or permanent, can be inserted following mastectomy (immediate) or at a later date (delayed). Through a small injection port under the skin, saline is injected into the expander over a period of weeks or months, gradually filling it to the desired size while stretching the overlying skin. Code 19357, Breast reconstruction, immediate or delayed, with tissue expander, including subsequent expansion, is used to report this procedure. The same code is used regardless of whether the procedure is immediate or delayed. This code is global and includes routine postoperative visits and subsequent expansions during the assigned postoperative global surgery period (eg, 90 days). When visits for expansions are necessary beyond the global period, they may be reported on a service-by-service basis.
If a temporary tissue expander has been used, it is removed after the skin has stretched sufficiently and replaced with a permanent breast prosthesis during a second operation. This procedure is generally coded 11970, Replacement of tissue expander with permanent prosthesis. Code 11970 is global and includes removal of the temporary expander, which is not to be reported separately. In certain instances, considerable capsular adjustments are necessary to allow proper placement of the prosthesis within the fibrous capsule that has formed around the expander, and with appropriate documentation in the operative report, code 19342 is sometimes used instead of 11970.
When a permanent tissue expander has been used, it is left in place at the conclusion of the expansion process. A second operation is not required.
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