L8688: Implantable neurostimulator pulse generator, dual array, non-rechargeable, includes extension
L8688 is a HCPCS Level II code for implantable neurostimulator pulse generator, dual array, non-rechargeable, includes extension. It belongs to the Orthotic and Prosthetic Procedures and Devices section. Medicare does not pay it: see the coverage note below before you bill it.
Medicare coverage: Not payable by Medicare
Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits: units per day
The most units of L8688 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
- 0, never payable MAI 3: Date of Service Edit: Clinical · CMS Policy
- DME supplier
- 0, never payable MAI 3: Date of Service Edit: Clinical · CMS Policy
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 2026Q4.
The CMS record for L8688
- Long descriptor
- Implantable neurostimulator pulse generator, dual array, non-rechargeable, includes extension
- Short descriptor
- Implt nrostm pls gen dua non
- Added
- January 1, 2006
- BETOS
- D1F
- Pricing indicator
- 00: Not priced by Part B
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.
Service not separately priced by Part B, not covered, bundled into another service, or used by Part A only.
Codes adjacent to L8688
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If L8688 is not quite right, the correct code is very often within a few positions of it.
- L8680Implantable neurostimulator electrode, each
- L8681Patient programmer (external) for use with implantable programmable neurostimulator pulse generator, replacement only
- L8682Implantable neurostimulator radiofrequency receiver
- L8683Radiofrequency transmitter (external) for use with implantable neurostimulator radiofrequency receiver
- L8684Radiofrequency transmitter (external) for use with implantable sacral root neurostimulator receiver for bowel and bladder management, replacement
- L8685Implantable neurostimulator pulse generator, single array, rechargeable, includes extension
- L8686Implantable neurostimulator pulse generator, single array, non-rechargeable, includes extension
- L8687Implantable neurostimulator pulse generator, dual array, rechargeable, includes extension
- L8689External recharging system for battery (internal) for use with implantable neurostimulator, replacement only
- L8690Auditory osseointegrated device, includes all internal and external components
- L8691Auditory osseointegrated device, external sound processor, excludes transducer/actuator, replacement only, each
- L8692Auditory osseointegrated device, external sound processor, used without osseointegration, body worn, includes headband or other means of external attachment
- L8693Auditory osseointegrated device abutment, any length, replacement only
- L8694Auditory osseointegrated device, transducer/actuator, replacement only, each
- L8695External recharging system for battery (external) for use with implantable neurostimulator, replacement only
- L8696Antenna (external) for use with implantable diaphragmatic/phrenic nerve stimulation device, replacement, eachterminated