KXHCPCS Level II
Requirements specified in the medical policy have been met
- Usage notes
- Append to confirm that the specific documentation or coverage requirements in a payer's medical policy for that code have been met.
- Common mistakes
- Appending KX as a reflex habit without verifying the underlying policy criteria are actually documented in the chart, which is a common audit finding.
Related modifiers
K0Lower extremity prosthesis functional level 0 - does not have the ability orK1Lower extremity prosthesis functional level 1 - has the ability or potential toK2Lower extremity prosthesis functional level 2 - has the ability or potentialK3Lower extremity prosthesis functional level 3 - has the ability or potentialK4Lower extremity prosthesis functional level 4 - has the ability or potentialKAAdd on option/accessory for wheelchairKBBeneficiary requested upgrade for abn, more than 4 modifiers identified on claimKCReplacement of special power wheelchair interface
Frequently asked questions
What does modifier KX mean?
Requirements specified in the medical policy have been met
When do I use modifier KX?
Append to confirm that the specific documentation or coverage requirements in a payer's medical policy for that code have been met.
What's a common mistake with modifier KX?
Appending KX as a reflex habit without verifying the underlying policy criteria are actually documented in the chart, which is a common audit finding.
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.