km modifier

Modifiers KM, KN (2021)


KM Modifier and KN Modifier are to be used on claims for replacement of items identified by codes L8040 thru L8047 that are furnished on or after January 1, 2005. Payment for codes L8040 thru L8047 is based on the presence of modifiers KM or KN. These modifiers are only used when a prostheses is being replaced.

KM Modifier Replacement of facial prosthesis – including new impression/moulage

KN Modifier Replacement of facial prosthesis – Using previous master model

KM Modifier and KN Modifier are applicable only for the below listed HCPCS codes

L8040    Nasal prosthesis, provided by a nonphysician

L8041    Midfacial prosthesis, provided by a nonphysician

L8042    Orbital prosthesis, provided by a nonphysician

L8043    Upper facial prosthesis, provided by a nonphysician

L8044    Hemi-facial prosthesis, provided by a nonphysician

L8045    Auricular prosthesis, provided by a nonphysician

L8046    Partial facial prosthesis, provided by a nonphysician

L8047    Nasal septal prosthesis, provided by a nonphysician

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