KB HCPCS Level II modifier: Beneficiary requested upgrade for abn, more than 4 modifiers identified on claim
KB is a HCPCS Level II modifier: “Beneficiary requested upgrade for abn, more than 4 modifiers identified on claim.” It adds this detail to the code it is reported with.
Official description
KBBeneficiary requested upgrade for abn, more than 4 modifiers identified on claim
Short description: >4 modifiers on claim
HCPCS · United States
Medicare details
The indicators CMS publishes with KB in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2003
Where KB sits
- 1GroupHCPCS modifiers
- 2Modifier KBBeneficiary requested upgrade for abn, more than 4 modifiers identified on claim
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 KB mean?
KB is the HCPCS code for “Beneficiary requested upgrade for abn, more than 4 modifiers identified on claim” in CMS’s HCPCS Level II October 2026 release.
Where is KB in the HCPCS Level II list?
KB is listed under Modifiers.
Does Medicare cover KB?
CMS lists KB’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 KB
All modifiersK0Lower extremity prosthesis functional level 0 - does not have the ability or potential to ambulate or transfer safely with or without assistance and a prosthesis does not enhance…K1Lower 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…K2Lower extremity prosthesis functional level 2 - has the ability or potential for ambulation with the ability to traverse low level environmental barriers such as curbs, stairs or…K3Lower extremity prosthesis functional level 3 - has the ability or potential for ambulation with variable cadence. typical of the community ambulator who has the ability to…K4Lower extremity prosthesis functional level 4 - has the ability or potential for prosthetic ambulation that exceeds the basic ambulation skills, exhibiting high impact, stress…KAAdd on option/accessory for wheelchairKCReplacement of special power wheelchair interfaceKDDrug or biological infused through dmeKEBid under round one of the dmepos competitive bidding program for use with non-competitive bid base equipmentKFItem designated by fda as class iii deviceKGDmepos item subject to dmepos competitive bidding program number 1KHDmepos item, initial claim, purchase or first month rental