C1825: Generator, neurostimulator (implantable), non-rechargeable with carotid sinus baroreceptor stimulation lead(s)
C1825 is a HCPCS Level II code for generator, neurostimulator (implantable), non-rechargeable with carotid sinus baroreceptor stimulation lead(s). It belongs to the Outpatient Prospective Payment System section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Special coverage instructions apply
There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.
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 C1825 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 2: Date of Service Edit: Policy · Code Descriptor / CPT Instruction
- outpatient
- 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 2026Q4.
The CMS record for C1825
- Long descriptor
- Generator, neurostimulator (implantable), non-rechargeable with carotid sinus baroreceptor stimulation lead(s)
- Short descriptor
- Gen, neuro, carot sinus baro
- Added
- January 1, 2021
- BETOS
- D1A
- Pricing indicator
- 53: 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.
Statute.
Codes adjacent to C1825
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If C1825 is not quite right, the correct code is very often within a few positions of it.
- C1817Septal defect implant system, intracardiac
- C1818Integrated keratoprosthesis
- C1819Surgical tissue localization and excision device (implantable)
- C1820Generator, neurostimulator (implantable), with rechargeable battery and charging system
- C1821Interspinous process distraction device (implantable)
- C1822Generator, neurostimulator (implantable), high frequency, with rechargeable battery and charging system
- C1823Generator, neurostimulator (implantable), non-rechargeable, with transvenous sensing and stimulation leads
- C1824Generator, cardiac contractility modulation (implantable)
- C1826Generator, neurostimulator (implantable), includes closed feedback loop leads and all implantable components, with rechargeable battery and charging system
- C1827Generator, neurostimulator (implantable), non-rechargeable, with implantable stimulation lead and external paired stimulation controller
- C1830Powered bone marrow biopsy needle
- C1831Interbody cage, anterior, lateral or posterior, personalized (implantable)
- C1832Autograft suspension, including cell processing and application, and all system components
- C1833Monitor, cardiac, including intracardiac lead and all system components (implantable)
- C1834Pressure sensor system, includes all components (e.g., introducer, sensor), intramuscular (implantable), excludes mobile (wireless) software applicationterminated
- C1839Iris prosthesis