0
727.9 (Other disorders of synovium, tendon, and bursa; unspecified disorder of synovium, tendon, and bursa)
They remove most of the synovium during surgery, so little or none is produced after, any that is will simply be reabsorbed by the body.
Synovium
It produces synovium which lubricates the joints.
they have no synovium and permit little or no movement