S8040 — Topographic brain mapping
S8040 is a HCPCS Level II code for topographic brain mapping. It belongs to the Temporary National Codes (Non-Medicare) 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 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusI
Not valid for Medicare purposes. Medicare uses another code.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for S8040
- Long descriptor
- Topographic brain mapping
- Short descriptor
- Topographic brain mapping
- Added
- January 1, 2000
- BETOS
- Z2
- 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 S8040
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If S8040 is not quite right, the correct code is very often within a few positions of it.
- S5565Insulin cartridge for use in insulin delivery device other than pump; 150 units
- S5566Insulin cartridge for use in insulin delivery device other than pump; 300 units
- S5570Insulin delivery device, disposable pen (including insulin); 1.5 ml size
- S5571Insulin delivery device, disposable pen (including insulin); 3 ml size
- S8030Scleral application of tantalum ring(s) for localization of lesions for proton beam therapy
- S8032Low-dose computed tomography for lung cancer screeningterminated
- S8035Magnetic source imaging
- S8037Magnetic resonance cholangiopancreatography (mrcp)
- S8042Magnetic resonance imaging (mri), low-field
- S8055Ultrasound guidance for multifetal pregnancy reduction(s), technical component (only to be used when the physician doing the reduction procedure does not perform the ultrasound, guidance is included in the cpt code for multifetal pregnancy reduction - 59866)
- S8080Scintimammography (radioimmunoscintigraphy of the breast), unilateral, including supply of radiopharmaceutical
- S8085Fluorine-18 fluorodeoxyglucose (f-18 fdg) imaging using dual-head coincidence detection system (non-dedicated pet scan)
- S8092Electron beam computed tomography (also known as ultrafast ct, cine ct)
- S8096Portable peak flow meter
- S8097Asthma kit (including but not limited to portable peak expiratory flow meter, instructional video, brochure, and/or spacer)
- S8100Holding chamber or spacer for use with an inhaler or nebulizer; without mask
Questions about S8040
What is HCPCS code S8040?
S8040 is a HCPCS Level II code for topographic brain mapping. It sits in the Temporary National Codes (Non-Medicare) section.
Does Medicare cover S8040?
The CMS HCPCS file marks S8040 as "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.
How is S8040 paid under the physician fee schedule?
S8040 carries PFS status code I. Not valid for Medicare purposes. Medicare uses another code.