E0691 — Ultraviolet light therapy system, includes bulbs/lamps, timer and eye protection; treatment area 2 square feet or less
E0691 is a HCPCS Level II code for ultraviolet light therapy system, includes bulbs/lamps, timer and eye protection; treatment area 2 square feet or less. It belongs to the Durable Medical Equipment 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 E0691 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
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- DME supplier
- 1 unit MAI 2 — Date of Service Edit: Policy · Code Descriptor / CPT Instruction
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 E0691
- Long descriptor
- Ultraviolet light therapy system, includes bulbs/lamps, timer and eye protection; treatment area 2 square feet or less
- Short descriptor
- Uvl pnl 2 sq ft or less
- Added
- January 1, 2003
- BETOS
- D1E
- Pricing indicator
- 32 — DMEPOS
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.
Inexpensive and routinely purchased DME. Price subject to floors and ceilings.
Codes adjacent to E0691
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E0691 is not quite right, the correct code is very often within a few positions of it.
- E0676Intermittent limb compression device (includes all accessories), not otherwise specified
- E0677Non-pneumatic sequential compression garment, trunk
- E0678Non-pneumatic sequential compression garment, full leg
- E0679Non-pneumatic sequential compression garment, half leg
- E0680Non-pneumatic compression controller with sequential calibrated gradient pressure
- E0681Non-pneumatic compression controller without calibrated gradient pressure
- E0682Non-pneumatic sequential compression garment, full arm
- E0683Non-pneumatic, non-sequential, peristaltic wave compression pump
- E0692Ultraviolet light therapy system panel, includes bulbs/lamps, timer and eye protection, 4 foot panel
- E0693Ultraviolet light therapy system panel, includes bulbs/lamps, timer and eye protection, 6 foot panel
- E0694Ultraviolet multidirectional light therapy system in 6 foot cabinet, includes bulbs/lamps, timer and eye protection
- E0700Safety equipment, device or accessory, any type
- E0705Transfer device, any type, each
- E0710Restraints, any type (body, chest, wrist or ankle)
- E0711Upper extremity medical tubing/lines enclosure or covering device, restricts elbow range of motion
- E0715Intravaginal device intended to strengthen pelvic floor muscles during kegel exercises
Questions about E0691
What is HCPCS code E0691?
E0691 is a HCPCS Level II code for ultraviolet light therapy system, includes bulbs/lamps, timer and eye protection; treatment area 2 square feet or less. It sits in the Durable Medical Equipment section.
Does Medicare cover E0691?
The CMS HCPCS file marks E0691 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.