K1 is a valid 2023 HCPCS Modifier that could be used to indicate Lower extremity prosthesis functional level 1 - has the ability or potential to use a prosthesis for transfers or ambulation on level surfaces at fixed cadence. typical of the limited and unlimited household ambulator..

K1 Modifier has been in effect since Jan 01, 1997.

Short description for K1 HCPCS Modifier code:

Lwr ext prost functnl lvl 1