29876

when can you use this code and does the diag need to support this.

knee arthroscopy

Arthroscopy, knee, surgical; synovectomy, major, two or more compartments (eg, medial or lateral)
Example: A meniscectomy is performed in the medial compartment and a major synovectomy is performed in the medial and lateral compartments of the same knee. Code 29881 would be reported for the meniscectomy in addition to 29876 for the synovectomy. Modifier 59 is appended to code 29876 to identify it as a distinct procedure performed in a different compartment.
Always reference the CCI edits for code pairs.
The diagnosis always has to support any service billed.