Surgical implantation of an electrical stimulation device at a fracture or fusion site to promote bone healing from within.
Verified May 8, 2026 · 8 sources ↓
- Medicare
- $168.67
- Total RVUs
- 5.05
- Global, days
- 0
- Region
- General
Documentation requirements
What must appear in the operative or office note to support the claim.
Source · Editorial brief grounded in 8 cited references ↓
- Indication for invasive stimulator: confirmed nonunion, delayed union, or high-risk fusion with supporting imaging
- Operative note explicitly describing surgical implantation of the electrical stimulation device and anatomic placement site
- Documentation of prior conservative or surgical treatment that preceded the decision to implant
- Medical necessity narrative tying the implant to the specific fracture or fusion diagnosis (ICD-10 code alignment required)
- Prior authorization approval number or documented waiver, per payer requirements
- Device name and type recorded in the implant log to distinguish from noninvasive units billed under DME codes
Applicable modifiers
Modifiers commonly billed with this code.
Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual
What this code covers
Source · Editorial summary grounded in 8 cited references ↓
20975 covers the operative placement of an internal electrical bone stimulation device — a surgically implanted electrode or lead system positioned directly at the site of a non-healing fracture, delayed union, or spinal fusion to drive osteogenesis. This is the invasive counterpart to 20974 (noninvasive). The device delivers low-level electrical current to stimulate osteoblast activity at the repair site. Common indications include failed fracture healing, high-risk fusions, and pseudarthrosis.
The 000-day global means same-day billing rules apply immediately. If a significant, separately identifiable E&M is performed on the same date, modifier 25 is required. Do not report neurostimulator codes (64553–64595) or physical medicine electrical stimulation codes (97014, 97032) in place of or alongside 20975 — the NCCI Policy Manual explicitly prohibits this substitution. When the device is surgically implanted, bill 20975 and HCPCS E0749; when a patient takes home a noninvasive unit instead, switch to the appropriate DME code (E0747 or E0748).
Prior authorization is recommended by most payers before this procedure. Medicare coverage is governed by NCD 150.2 and LCD L33796. Document medical necessity carefully — payers scrutinize whether conservative measures preceded implantation and whether the clinical indication (e.g., nonunion, delayed union, high-risk fusion) meets coverage criteria.
RVU & reimbursement
Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.
Source · CMS Physician Fee Schedule, RVU26A · January 2026
| Work RVU | 2.54 |
| Practice expense RVU | 1.76 |
| Malpractice RVU | 0.75 |
| Total RVU | 5.05 |
| Medicare national rate | $168.67 |
| Global period | 0 days |
Payment by site of service
Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.
Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026
| Setting | Medicare rate (national) |
|---|---|
Office (PFS non-facility) Procedure performed in physician's office | $168.67 |
Common denial reasons
The recurring reasons claims for CPT 20975 get rejected.
Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓
- Missing or insufficient prior authorization — payers widely require pre-auth for 20975
- Diagnosis-code mismatch: ICD-10 does not support nonunion, delayed union, or covered fusion indication
- Bundling error: neurostimulator code (64553–64595) or physical medicine E-stim code (97014, 97032) billed instead of or alongside 20975
- Noninvasive DME device (E0747/E0748) billed to physician fee schedule instead of DME channel, or 20975 used for a device the patient took home
- Insufficient documentation of failed prior treatment to establish medical necessity under NCD 150.2 or LCD L33796
Frequently asked questions
Source · Generated from the editorial pipeline, verified against 8 cited references ↓
01What is the difference between 20974 and 20975?
02Can 20975 be billed with the primary spine fusion code on the same date?
03Which HCPCS code pairs with 20975 for the device itself?
04Can neurostimulator codes (64553–64595) be substituted for 20975?
05Is prior authorization required for 20975?
06What global period applies, and how does that affect same-day E&M billing?
07Can 20975 be billed bilaterally?
Sources & references
Editorial content was developed using the following public sources. Last verified May 8, 2026.
- 01CMS Physician Fee Schedule 2026
- 02cms.govhttps://www.cms.gov/files/document/04-chapter4-ncci-medicare-policy-manual-2026-final.pdf
- 03cms.govhttps://www.cms.gov/files/document/04-chapter4-ncci-medicaid-policy-manual-2025finalcleanpdf.pdf
- 04providencehealthplan.comhttps://www.providencehealthplan.com/-/media/providence/website/pdfs/providers/medical-policy-and-provider-information/medical-policies/mp226.pdf
- 05s3-us-west-2.amazonaws.comhttps://s3-us-west-2.amazonaws.com/images.provhealth.org/Providence-Images/PHP_Bone_Growth_Stimulators_CMS_Only.pdf
- 06CMS NCD 150.2 – Osteogenic Stimulators
- 07CMS LCD L33796 – Osteogenesis Stimulators
- 08CMS Local Coverage Article A52513 – Osteogenesis Stimulators Policy Article
Mira AI Scribe
Mira's AI scribe captures the surgical approach, anatomic placement site of the implanted stimulator, the specific diagnosis driving implantation (nonunion, delayed union, or fusion at risk), and any prior treatment attempts documented in the dictation. That detail directly supports medical necessity under NCD 150.2 and LCD L33796, preventing the most common denial: inadequate justification for invasive over noninvasive stimulation.
See how Mira captures CPT 20975 documentation