Endoscopic Pronator Release and Endoscopic Cubital Release

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I need some thoughts and direction on the proper way to code an Endoscopic Pronator Release and an Endoscopic Cubital Release.
I have been using 29999. Is there a better code to use?

Also, what are some thoughts on coding an Endoscopic Carpal Tunnel Release with a Volar Fasciotomy?
In the procedure description, He first makes an incision to do the Volar Fasciotomy(Open procedure). Then, through the same incision, he inserts an endoscope to do the Endoscopic Carpal Tunnel Release. I fell that I should only code the Volar Fasciotomy (25020), as it would not make sense to do an open procedure first and then slide an endoscope within the same incision/area, to do an Endoscopic procedure.