K1027 — Oral device/appliance used to reduce upper airway collapsibility, without fixed mechanical hinge, custom fabricated, includes fitting and adjustment
K1027 is a HCPCS Level II code for oral device/appliance used to reduce upper airway collapsibility, without fixed mechanical hinge, custom fabricated, includes fitting and adjustment. It belongs to the Durable Medical Equipment (DME MAC Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of K1027 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 1 unit MAI 3 — Date of Service Edit: Clinical · Nature of Equipment
- outpatient
- 1 unit MAI 3 — Date of Service Edit: Clinical · Nature of Equipment
- DME supplier
- 1 unit MAI 3 — Date of Service Edit: Clinical · Nature of Equipment
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for K1027
- Long descriptor
- Oral device/appliance used to reduce upper airway collapsibility, without fixed mechanical hinge, custom fabricated, includes fitting and adjustment
- Short descriptor
- Oral dev without fix mech
- Added
- October 1, 2021
- BETOS
- Z2
- Pricing indicator
- 99 — Other
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Value not established.
Codes adjacent to K1027
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If K1027 is not quite right, the correct code is very often within a few positions of it.
- K1019Supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wristterminated
- K1020Non-invasive vagus nerve stimulatorterminated
- K1021Exsufflation belt, includes all supplies and accessoriesterminated
- K1022Addition to lower extremity prosthesis, endoskeletal, knee disarticulation, above knee, hip disarticulation, positional rotation unit, any typeterminated
- K1023Distal transcutaneous electrical nerve stimulator, stimulates peripheral nerves of the upper armterminated
- K1024Non-pneumatic compression controller with sequential calibrated gradient pressureterminated
- K1025Non-pneumatic sequential compression garment, full armterminated
- K1026Mechanical allergen particle barrier/inhalation filter, cream, nasal, topicalterminated
- K1028Power source and control electronics unit for oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, controlled by phone applicationterminated
- K1029Oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, used in conjunction with the power source and control electronics unit, controlled by phone application, 90-day supplyterminated
- K1030External recharging system for battery (internal) for use with implanted cardiac contractility modulation generator, replacement only
- K1031Non-pneumatic compression controller without calibrated gradient pressureterminated
- K1032Non-pneumatic sequential compression garment, full legterminated
- K1033Non-pneumatic sequential compression garment, half legterminated
- K1034Provision of covid-19 test, nonprescription self-administered and self-collected use, fda approved, authorized or cleared, one test count
- K1035Molecular diagnostic test reader, nonprescription self-administered and self-collected use, fda approved, authorized or cleared
Questions about K1027
What is HCPCS code K1027?
K1027 is a HCPCS Level II code for oral device/appliance used to reduce upper airway collapsibility, without fixed mechanical hinge, custom fabricated, includes fitting and adjustment. It sits in the Durable Medical Equipment (DME MAC Temporary) section.
Does Medicare cover K1027?
The CMS HCPCS file marks K1027 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.