Than initial, use code k0556 or k0557) addition to lower extremity, below knee/above knee, custom fabricated socket or equal, for use with or without locking mechanism, initial only (for other insert for congenital or atypical traumatic amputee, silicone gel, elastomeric
This is the 2006 version of HCPCS K0558 - please refer to the 2016 HCPCS code set for the latest version.
