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Revision is defined as correcting, to the extent possible, a malfunctioning or displaced device. Revision can include correcting a malfunctioning device by taking out and/or putting in part of the device.
Revision is coded when the objective of the procedure is to correct the positioning or function of a previously placed device, without taking the entire device out and putting a whole new device in its place. A complete re-do of the original root operation is coded to the root operation performed.
Examples of revision procedures include adjustment of pacemaker lead, adjustment or revision of hip prosthesis, revision of pacemaker insertion, and reposition of Swan-Ganz catheter.
