KN HCPCS Level II modifier: Replacement of facial prosthesis using previous master model
KN is a HCPCS Level II modifier: “Replacement of facial prosthesis using previous master model.” It adds this detail to the code it is reported with.
Official description
KNReplacement of facial prosthesis using previous master model
Short description: Rplc facial prosth old mod
HCPCS · United States
Medicare details
The indicators CMS publishes with KN in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 1996
Where KN sits
- 1GroupHCPCS modifiers
- 2Modifier KNReplacement of facial prosthesis using previous master model
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code KN mean?
KN is the HCPCS code for “Replacement of facial prosthesis using previous master model” in CMS’s HCPCS Level II October 2026 release.
Where is KN in the HCPCS Level II list?
KN is listed under Modifiers.
Does Medicare cover KN?
CMS lists KN’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside KN
All modifiersKHDmepos item, initial claim, purchase or first month rentalKIDmepos item, second or third month rentalKJDmepos item, parenteral enteral nutrition (pen) pump or capped rental, months four to fifteenKKDmepos item subject to dmepos competitive bidding program number 2KLDmepos item delivered via mailKMReplacement of facial prosthesis including new impression/moulageKOSingle drug unit dose formulationKPFirst drug of a multiple drug unit dose formulationKQSecond or subsequent drug of a multiple drug unit dose formulationKRRental item, billing for partial monthKSGlucose monitor supply for diabetic beneficiary not treated with insulinKTBeneficiary resides in a competitive bidding area and travels outside that competitive bidding area and receives a competitive bid item