AHA Coding Clinic® for ICD-9 - 2011 Issue 1; Ask the Editor

Superior Semicircular Canal Plugging Procedure

The same patient underwent superior semicircular canal plugging using a combination of bone wax, overlay of calvarial bone graft and temporalis fascia. At surgery, neurophysiologic testing was done. The surgeon noted "a small amount of cerebral spinal fluid (CSF) egress through a pinpoint hole in the dura, which was not clinically significant and was controlled using bipolar cautery without CSF egress." Duraseal was placed over the area. What procedure codes should be assigned for the repair of the superior semicircular canal dehiscence syndrome? Should the CSF egress be coded as well? ...

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