Spinal Cord Stimulator Billing: Trial, Permanent Implant and Programming Codes

In spinal cord stimulator billing, one patient creates at least four separate billing events: a screening trial, a permanent implant, programming visits and, sometimes, a revision. Each event uses different codes. In addition, the device itself bills differently in a hospital, an ASC and an office.

Spinal cord stimulator billing goes wrong when those phases blur, for example when a practice bills trial lead removal separately or an office claim adds a lead code Medicare already pays through 63650. Here are the codes for each phase first, then the rules behind them.

Trial, Implant and Programming Codes in Brief

• Trial: 63650 for each temporary percutaneous lead. That code also covers removing the trial leads.
• Permanent implant: 63650 per percutaneous lead or 63655 for a paddle, plus 63685 for the generator. Then add the device on its own line, with a C-code for hospital outpatient claims or an L-code where the payer requires it.
• Programming: 95970 for analysis only, 95971 for simple programming and 95972 for complex programming, with Z45.42 as the visit diagnosis.
• Revision or removal: 63661 to 63664 for leads and 63688 for the generator.

Who Qualifies Under NCD 160.7

Medicare NCD 160.7 spinal cord stimulation coverage applies to chronic intractable pain, and the NCD text sets five conditions that every case must meet:

• The stimulator is a late or last resort for chronic intractable pain.
• Drug, surgical, physical or psychological treatments failed, or are unsuitable or contraindicated.
• A multidisciplinary team screened the patient, including psychological and physical evaluation.
• The facility has the equipment and staff for diagnosis, training and follow-up.
• A temporary electrode showed pain relief before permanent implantation.

In spinal cord stimulator billing, the SCS psychological evaluation requirement is easy to overlook. The report should carry a date before the trial and clear the patient for implantation. Most payers also define a successful trial as at least 50% pain relief, the threshold ASRA guidance cites, recorded in the patient’s own pain diary.

Likewise, the chart must document failed conservative care the same way it does for spine surgery. Our post on failed conservative treatment documentation shows what payers expect to see.

SCS Trial Billing With CPT 63650

The trial tests whether stimulation works before the surgeon implants anything for good, and its coding is simpler than most teams expect.

The Trial Claim

Practices bill the spinal cord stimulator trial CPT 63650 code once per lead placed, so a two-lead trial is 63650 × 2. Medicare also allows up to two units per day but does not accept RT, LT or 50 on 63650.

Where the trial happens changes the claim:

• Office: 63650 pays at the higher non-facility rate, which already covers the leads. For this reason, do not bill L8680 to Medicare.
• Hospital outpatient: the facility reports the trial lead kit with C1897 alongside 63650.
• ASC: 63650 is device-intensive, so the facility payment already includes the lead cost.

Pulling the trial leads at the end is part of 63650. Therefore, coders never bill it with removal code 63661, according to the Medtronic 2026 coding guide and ASRA.

Trial to Permanent Conversion

An SCS trial to permanent conversion takes one of two paths:

1. New permanent leads: bill 63650 or 63655 for the leads, plus 63685 for the generator.
2. Trial leads kept: if the trial leads stay in and connect to the generator, bill 63685 only. In that case, no lead, removal or revision code applies.

When the permanent implant falls inside the trial’s 10-day global period, append modifier 58 to show it was a planned, staged procedure.

Permanent Implant and Device Codes

The SCS permanent implant 63685 code covers placing the generator, creating the pocket and connecting it to the leads. It goes on the claim with the lead code for the permanent leads: 63650 for percutaneous leads or 63655 for a paddle placed through a laminectomy. In addition, 63655 and 63685 are both facility-only codes with no office rate.

For spinal cord stimulator billing, the device line is where setting matters most. For example, Medicare hospital outpatient claims require C-codes, while Medicare ASCs report C-codes only for items not packaged into the payment. Commercial plans follow their contracts, often with L-codes.

These are the SCS device codes C1820, L8679 and related items most claims use. Medicare does not recognize L8686 to L8688, so those stay off Medicare claims. Missing device lines are a common source of lost implant revenue, as our post on spine implant revenue leakage explains.

Programming Visits After the Implant

The number of parameters changed decides which neurostimulator programming 95970, 95971 and 95972 code applies:

• 95970: electronic analysis only, with no programming
• 95971: analysis with simple programming, three or fewer parameters changed
• 95972: analysis with complex programming, four or more parameters changed

As a result, the note should list each parameter adjusted. Per ASRA, programming is billable only when the physician or practice staff perform it, not a manufacturer’s representative alone.

Use Z45.42 neurostimulator adjustment as the visit diagnosis, with the chronic pain code (G89) and underlying condition. Also check each payer’s frequency limits.

Spinal Cord Stimulator Billing Codes at a Glance

After that review of the trial, implant and programming rules, here is the full episode in one view, from coverage check to revision:

Revisions, Global Periods and Prior Auth

The later events in an SCS episode carry most of the avoidable denials.

Revisions and Removals

• 63661 / 63662: removal of percutaneous leads or a paddle
• 63663 / 63664: revision, including replacement, of percutaneous leads or a paddle
• 63688: revision or removal of the generator
• 63685: generator replacement at battery end of life, without 63688 for the same generator

Hospitals add modifier CG to 63663 or 63664 when the surgeon revises a lead without inserting a new device. A return to the operating room for a complication during the global period takes modifier 78.

Global Period Watch-Outs

The trial code 63650 carries a 10-day global, so practices do not bill routine follow-up visits in that window. Other SCS codes have their own global periods in the Medicare fee schedule, which the claim team should check before billing any visit after surgery. Our pain management CPT guide also lists the related codes.

Prior Authorization

Most commercial and Medicare Advantage plans require separate approval for the trial and the permanent implant. As a result, the second request should include the trial results and pain diary, the psychological evaluation and the conservative care history. Our guide to prior authorization appeals covers what to do when a payer denies a request.

Every SCS Phase Deserves Its Own Clean Claim

A spinal cord stimulator moves through coverage, trial, implant, programming and sometimes revision, and each step has its own codes and traps. In short, bill trial leads once with 63650, convert to a permanent system with the right lead and generator codes, match device codes to the site of service, and document every programming parameter.

Because device costs are this high, a single missed line in spinal cord stimulator billing can erase the margin on a case. MBW RCM follows each SCS episode from prior authorization to the last programming visit, and its pain management billing services check every device code against the site of service, so every phase reaches the payer in full.

Spinal Cord Stimulator Billing FAQs