Billing and coding for interventional pain clinics, anesthesiology-based pain groups, multidisciplinary pain practices and the ASCs where they operate.
Medicare pays $190.39 nationally for a single lumbar facet injection in the office in 2026, and nothing when the claim carries the wrong laterality modifier, one diagnostic block instead of two, or an authorization that lapsed when the case moved. Pain management revenue leaks between the procedure note, the LCD and the payer portal. Luxen codes, submits and works every injection, ablation and stimulator claim inside your EHR, with a BAA signed before we see a record.
On this page
Pain management billing services code, submit and follow up claims for facet injections, radiofrequency ablation, epidural steroid injections, spinal cord stimulator trials and office visits, checked against Medicare LCD limits and prior authorization rules. In the Luxen claim audit, prior authorizations for spinal injections expired before the date of service on 10% of cases.
We bill for four kinds of pain practices, and the claim changes with each.
Service lines we bill: spinal and joint injections, facet and genicular radiofrequency ablation, spinal cord stimulator trials and implants, in-office drug testing, office visits and chronic pain management, plus workers compensation and auto injury claims.
Most lost pain management revenue is a procedure done correctly and billed against the wrong rule. Our denials and AR recovery team checks each of these before resubmitting. Dollar figures are 2026 Medicare national rates (CMS 2026 RVU file) or Luxen claim audit data.
| Scenario | Codes | What goes wrong | $ at stake per claim | Luxen audit finding |
|---|---|---|---|---|
| Bilateral lumbar medial branch block billed on two lines | 64493-RT, 64493-LT | Professional claims need one line with modifier 50; the second line denies | $95.20 non-facility, the second side | Bilateral facet and RFA procedures billed on separate RT and LT lines caused 9% of pain procedure denials |
| Lumbar RFA after one diagnostic block | 64635 | The facet LCD requires two diagnostic blocks with 80% relief | $173.02 facility | Facet RFA claims lacked two qualifying diagnostic medial branch blocks on 12% of claims |
| Transforaminal epidural moved to a new date | 64483 | New date falls outside the authorization window | $264.87 non-facility | Prior authorizations for spinal injections expired before the date of service on 10% of cases |
| Hospital outpatient facet injection, no prior authorization | 64493, POS 22 | Hospital claim denies, physician claim denies with it | $81.50 facility per level | Missing or invalid prior authorization caused 17% of denials |
| Office visit with modifier 25 on the injection day | 99214 with 62323 | The note shows only the decision to inject | $135.61 non-facility | Coding and modifier errors caused 21% of denials |
Every spinal injection and facet ablation code below includes fluoroscopy or CT guidance, so our certified medical coders never add 77003 or 77012 (NCCI Policy Manual 2026, Chapter VIII). Rates are 2026 national amounts at the $33.4009 conversion factor (CMS CY 2026 PFS final rule).
| Code | Procedure | Global days | Non-facility | Facility |
|---|---|---|---|---|
| 64490 | Cervical or thoracic facet injection, single level | 000 | $205.08 | $94.19 |
| 64493 | Lumbar or sacral facet injection, single level | 000 | $190.39 | $81.50 |
| 64635 | Lumbar or sacral facet RFA, single joint | 010 | $464.94 | $173.02 |
| 62323 | Lumbar or sacral interlaminar epidural | 000 | $273.22 | $89.18 |
| 64483 | Lumbar or sacral transforaminal epidural, single level | 000 | $264.87 | $99.53 |
| 27096 | Sacroiliac joint injection | 000 | $175.69 | $73.82 |
| 64624 | Genicular nerve destruction | 010 | $411.17 | $133.27 |
| 63650 | Percutaneous epidural electrode array | 010 | $2,388.50 | $375.43 |
| 20552 | Trigger point injections, 1 or 2 muscles | 000 | $51.77 | $35.74 |
| G3002 | Chronic pain management, first 30 minutes a month | XXX | $86.17 | $64.46 |
Medicare contractors pay these procedures only when the chart meets the LCD. We check these limits before scheduling, using the WPS facet LCD (L38841) and the Noridian epidural LCD (L39240).
| Rule | Facet injections and RFA | Epidural steroid injections |
|---|---|---|
| Before the first procedure | Mainly axial pain for 3 months, failed conservative care, functional deficit | Radicular pain for 4 weeks, failed conservative care; axial pain alone not covered |
| Sessions per region, rolling 12 months | 4 therapeutic injections; 2 RFA | 4 |
| Levels per session | 1 to 2, unilateral or bilateral | 2 transforaminal; 1 interlaminar or caudal |
| To repeat | 50% relief for 3 months (injection) or 6 months (RFA) | 50% improvement for 3 months |
| Imaging | Fluoroscopy or CT; ultrasound not covered | CT or fluoroscopy with contrast |
RFA is covered after 2 diagnostic medial branch blocks, each with at least 80% relief of the index pain, and KX goes on diagnostic injection lines (A58477). A note with one block, or relief without a percentage, fails review. Facet RFA claims lacked two qualifying diagnostic medial branch blocks on 12% of claims (Luxen claim audit).
Permanent implants need failed prior treatment, a psychological and physical evaluation, and relief during a temporary trial (NCD 160.7). Noridian counts a trial as successful at 50% less target pain or analgesic use with functional gain, and covers 2 trials per region per lifetime (L35136). Each added lead is 63650-59 (Noridian).
On the professional claim, bilateral facet injections, facet RFA and transforaminal epidurals go on one line with modifier 50 and 1 unit, paid at 150% (NCCI Chapter VIII; Noridian). Only the ASC facility claim uses RT and LT lines, and 62321 and 62323 are not bilateral procedures (A58993). Bilateral facet and RFA procedures billed on separate RT and LT lines caused 9% of pain procedure denials (Luxen claim audit).
Injections carry a 000-day global period, and the decision to inject is included in the procedure payment. A same-day visit takes modifier 25 only when the note shows a significant, separately identifiable evaluation (NCCI Chapter VIII).
Drugs from single-dose containers need JZ when nothing is discarded, or JW on a separate line for the discarded amount; neither applies to multiple-dose vials (CMS JW and JZ FAQ).
Medicare pays the non-facility rate in the office (POS 11) and the facility rate in an on-campus hospital outpatient department (POS 22) or ASC (POS 24) (Claims Processing Manual, Chapter 12). A lumbar facet injection pays $190.39 in the office and $81.50 in a facility, so a wrong POS code misprices every line.
No guidance code is reported with a procedure whose descriptor includes imaging guidance, which covers the epidural, facet and RFA codes (NCCI Policy Manual 2026, Chapter VIII). The $104.54 fluoroscopy line denies. Coding and modifier errors caused 21% of denials (Luxen claim audit).
Bilateral 64490 to 64495 take modifier 50 on one line; only ASC facility claims use RT and LT (A58477). Otherwise the $95.20 second side is lost. Bilateral facet and RFA procedures billed on separate RT and LT lines caused 9% of pain procedure denials (Luxen claim audit).
A repeat needs 50% improvement for 3 months, and 4 sessions per spinal region per rolling 12 months is the cap (L39240). A fifth is a denied $264.87 claim. In the average practice we reviewed, the top three denial reasons accounted for 58% of denied dollars (Luxen billing reviews).
The facet LCD requires 2 diagnostic medial branch blocks, each with 80% relief (L38841). Without them the $173.02 facility payment per lumbar joint denies. Facet RFA claims lacked two qualifying diagnostic medial branch blocks on 12% of claims (Luxen claim audit).
The decision to inject is part of the procedure; modifier 25 needs a significant, separately identifiable visit (NCCI Chapter VIII). A $135.61 99214 is recouped when the note supports only the injection. When a documented visit still denies, appeals filed by Luxen were overturned 68% of the time (Luxen client data).
We run the revenue cycle from eligibility to zero balance inside the practice management system you already use. How full-service billing works.
Certified coders review charges against your documentation and payer rules before the claim goes out, so the denial is prevented rather than appealed. Medical coding.
Aged and denied claims are worked to resolution, then the upstream cause is fixed so the same claims stop coming back. Denials and AR recovery.
Benefits are verified and authorizations secured before the appointment, which is the cheapest place in the cycle to stop a denial. Eligibility and prior authorization.
Statements, balance questions and payment plans are handled by the same team that worked the claim. Patient billing.
Payer enrollment and re-credentialing are tracked through to approval, so a lapsed credential never quietly stops payment. Credentialing.
A HIPAA-trained front-office assistant working inside your EHR on calls, scheduling, intake and referrals, alongside the billing team. Medical virtual assistant.
Pain practices document procedures in one system and bill from another. We work inside the EHR and practice management systems pain groups run, including Epic, athenaOne, eClinicalWorks, NextGen, ModMed, AdvancedMD and Tebra, and in ASC systems such as HST Pathways and SIS for facility claims. We pull procedure notes, diagnostic block pain scores and stimulator trial records into claim review, and track approvals in your payer portals. No migration and no new software for your clinicians.
2 weeks
from a signed BAA to our team working your claims
About 3 weeks
to the first recovered payments on aged AR
20+ years
combined billing and coding experience
Injection claims were frequently held because laterality, imaging guidance, and procedure documentation were reviewed separately. Luxen added a same-day pre-bill check, reduced procedure denials from 17.6% to 4.8%, and recovered $55,200.
Practice Administrator, interventional pain management clinic
Drug-testing claims were submitted without a consistent link between the order, result, and documented medical need. Luxen rebuilt that workflow, reducing related denials by 69% and recovering $48,700.
Revenue Cycle Manager, multidisciplinary pain practice
Full engagements are written up in our dental practice case study and our ambulance billing case study.
Our eligibility and prior authorization team tracks the Medicare programs that now reach pain procedures.
The WISeR model runs from January 1, 2026 through December 31, 2031 in Arizona, New Jersey, Ohio, Oklahoma, Texas and Washington, in offices, ASCs and hospital outpatient departments (CMS WISeR model). It adds prior authorization for 62323 billed for epidural steroid injections, and claims without it go to pre-payment medical review (WISeR provider guide). See medical billing in Texas, medical billing in Ohio and medical billing in New Jersey.
Medicare patients can receive telehealth at home through December 31, 2027 (CMS telehealth FAQ), and DEA telemedicine flexibilities for prescribing controlled substances run through December 31, 2026 (Federal Register).
In house or outsourced, these are the numbers to see every month.
| KPI | What to watch | Luxen benchmark |
|---|---|---|
| First-pass denial rate | Denials on first submission, by reason | Across 38 client practices, first-pass denial rate fell from 14.2% to 6.1% within 90 days of onboarding (Luxen client data) |
| Days in AR | Total AR divided by average daily charges | Pain management practices carried a median 44 days in AR (Luxen billing reviews) |
| AR past 90 days | Share of total AR, by payer | 27% of total AR sat past 90 days in the average practice reviewed (Luxen billing reviews) |
| Unworked denials | Denials with no correction or appeal | 19% of denied claims were never reworked or appealed (Luxen billing reviews) |
3% to 6% of collections
Luxen's pricing generally falls between 3% and 6% of collections, depending on claim volume, specialty, payer mix, and how much of the revenue cycle your practice hands over.
Higher-volume practices usually land toward the lower end. Smaller or more complex practices land higher because there is more work per account. There is no setup fee and no exit fee, and the agreement runs month to month with 30 days notice.
A lower fee attached to weak billing is still expensive. The number that matters is what your collections do after you hire someone.
Luxen charges 3% to 6% of collections, set by procedure volume, payer mix and how many authorizations we track. No setup or exit fee.
| Service line | Monthly collections | Luxen at 3% | Luxen at 6% |
|---|---|---|---|
| Injections and radiofrequency ablation | $85,000 | $2,550 | $5,100 |
| Spinal cord stimulator trials and implants | $30,000 | $900 | $1,800 |
| Office visits, chronic pain management and drug testing | $35,000 | $1,050 | $2,100 |
| Total | $150,000 | $4,500 | $9,000 |
| Cost | In-house | Luxen |
|---|---|---|
| Monthly | $11,850 (7.9% of collections) | $4,500 to $9,000 |
| Annual | $142,200 | $54,000 to $108,000 |
| When a biller leaves | Open biller roles took a median 67 days to fill | No gap in coverage |
| Terms | Salaries, benefits, software seats | Month to month, 30 days notice |
Fully loaded in-house billing cost 7.9% of collections for practices under $2M, across 96 practices that shared payroll data (Luxen billing reviews).
| Partner type | LCD frequency checks | Prior authorization | Reporting | Terms |
|---|---|---|---|---|
| In-house biller | Depends on one person | Front desk | Built by your staff | Payroll and turnover |
| Generalist billing company | Usually after a denial | Often left to the practice | Standard aging reports | Often annual terms |
| Specialty pain billing company | Usually built in | Varies | Varies | Some charge setup fees |
| EHR vendor RCM | Vendor claim edits | Limited | Inside the vendor platform | Bundled with software |
| Luxen | Before scheduling and submission | Tracked by date range, including OPD and WISeR | Monthly denials, AR and authorizations | Month to month, 30 days notice |
Compare medical billing companies on these points, or see what full-service medical billing includes.
A 30-minute look at your AR ageing, denial reasons and payer mix. You leave knowing what is recoverable, what we would work first and what it would cost.
We sign a business associate agreement before anyone touches your system. Your named team then works inside the practice management system and clearinghouse you already use. Nothing is migrated, and claims are being worked within two weeks of the signed BAA.
Aged and denied claims come first because that is revenue you have already earned. Most practices see the first recovered payments inside three weeks.
Once the backlog is moving, we take over the agreed part of the daily cycle: eligibility, coding review, submission, posting, denials and patient balances.
You know who owns your claims. The team works inside the practice management system and EHR you already run, with no migration.
Claims are coded by certified coders against your documentation and payer rules. Automation handles the repetitive checks so people spend their time on the claims that need judgment.
We sign a business associate agreement before accessing protected health information, and access is limited to the named people on your account.
We look at your AR ageing, volume, payer mix and denial profile first, then tell you what we believe is recoverable and what it would cost.
A billing company is a poor fit if you are not willing to share visibility into your billing, if the vendor uses a rotating pool of people who never learn your practice, or if it cannot explain why your claims are being denied. Be wary of anyone promising large collection increases before they have seen your AR ageing. The right partner makes your revenue cycle more visible, not less.
Common red flags are radiofrequency ablation without two diagnostic medial branch blocks, more than 4 epidural sessions per spinal region in 12 months, 77003 billed with injection codes that already include imaging, and modifier 25 on nearly every injection visit. Each conflicts with a Medicare LCD or NCCI policy.
Luxen charges 3% to 6% of collections with no setup or exit fee. For a practice collecting $150,000 a month, that is $4,500 to $9,000 a month. Fully loaded in-house billing cost 7.9% of collections for practices under $2M in Luxen billing reviews.
About 2 weeks from a signed BAA to working claims; across Luxen clients, median time from signed BAA to first claims worked was 9 business days. First recovered payments arrive in about 3 weeks, starting with the oldest open procedure claims. Terms are month to month with 30 days notice.
No. We work inside the EHR, practice management and ASC systems you already use, including Epic, athenaOne, eClinicalWorks, ModMed and NextGen. Of practices that changed systems in the past five years, 71% said collections dipped for at least six months after the switch (Luxen Practice Manager Survey 2026).
Yes. Since July 1, 2023, Medicare has required prior authorization for 64490, 64491, 64493, 64494 and 64633 to 64636 in hospital outpatient departments. If the hospital claim is denied with no authorization on file, the related physician and anesthesia claims are denied too. Offices and ASCs are outside this program.
Thirty minutes, no deck and no fee. We look at what is sitting past 90 days and where your denials cluster, and you leave knowing what is recoverable, what we would work first, and what it would cost.
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