CPT 22586Surgery

Arthrd pre-sac ntrbdy l5-s1

CPT code 22586 covers the surgical procedure to fuse the lowest vertebra (L5) to the sacrum (S1) using an anterior (front-of-body) approach through the presacral space, which includes placing bone graft material between the vertebrae to promote fusion.

Showing rates for

National Average

Base Medicare rate

$2,014.86

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

28.12

PE RVU (NF)

22.6

MP RVU

11.57

Total RVU

62.29

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always bill 22586 as an add-on code with a primary anterior spinal arthrodesis code (22558 or 22556); never bill 22586 alone
Impact: Standalone billing results in 100% denial; proper pairing ensures full $2014.86 reimbursement per level
Document the specific presacral approach in operative notes, distinguishing it from standard retroperitoneal approaches, including vascular mobilization and identification of middle sacral vessels
Impact: Insufficient approach documentation causes 30-40% of denials; detailed notes reduce audit risk and support medical necessity
Report 22586 only once for L5-S1 level regardless of the number of interbody devices placed; this is a per-interspace code, not per-device
Impact: Duplicate billing triggers automatic denials and potential fraud investigation; correct single reporting ensures compliant $2014.86 payment
Submit operative reports with claims for initial review, highlighting presacral corridor dissection, interbody preparation, and graft/cage placement details
Impact: Proactive documentation submission reduces payer requests for records by 60% and accelerates payment cycle by 15-20 days
Verify that instrumentation codes (22840-22848, 22853-22854) are billed separately when applicable, as these are not included in 22586
Impact: Missing instrumentation codes can leave $1500-$4000 on the table per case; proper coding captures full procedural value
For Medicare patients, confirm LCD/NCD coverage criteria are met, including documentation of failed conservative therapy for minimum 6 months and radiographic evidence of pathology

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 22586 in 2025?

The 2025 Medicare national average reimbursement for CPT 22586 is $2014.86 for both facility and non-facility settings, based on 62.29 total RVUs and the 2025 conversion factor of 32.3465. Actual payment may vary by geographic locality based on GPCI adjustments.

Can CPT 22586 be billed alone or does it require a primary code?

CPT 22586 is an add-on code and cannot be billed alone. It must be reported with a primary anterior spinal arthrodesis code, typically 22558 (lumbar arthrodesis, anterior interbody technique, single interspace) or 22556 (thoracic or lumbar, anterior interbody technique, single interspace). Billing 22586 without a primary code will result in denial.

What is the difference between CPT 22586 and other lumbar fusion codes?

CPT 22586 specifically describes an add-on interbody arthrodesis at L5-S1 performed via presacral approach. It differs from 22585 (each additional interspace) which applies to levels other than L5-S1. The presacral approach is a distinct anterior surgical corridor that requires mobilization of presacral vessels and structures, differentiating it from standard retroperitoneal approaches.

How many RVUs is CPT code 22586 worth in 2025?

CPT 22586 has a total of 62.29 RVUs in 2025, consisting of 28.12 work RVUs, 22.6 practice expense RVUs (both facility and non-facility), and 11.57 malpractice RVUs. This makes it a high-value procedural code reflecting the complexity and risk of presacral L5-S1 fusion.

What modifiers are commonly used with CPT 22586?

Common modifiers for 22586 include: modifier 59 for distinct procedural services when bundling edits apply, modifier 62 for co-surgeons (often neurosurgeon and vascular surgeon), modifier 22 for increased procedural services due to complexity, modifier 78 for return to OR during postoperative period, and modifier 80 for surgical assistant. Modifier 51 typically does not apply as 22586 is modifier 51 exempt.

What documentation is required to bill CPT 22586 successfully?

Required documentation includes: detailed operative report describing the presacral approach with anatomical landmarks, identification of L5-S1 interspace, interbody device/graft placement details, medical necessity justification with imaging findings, documentation of failed conservative treatment (typically 6+ months), and clear linkage to the primary arthrodesis code. The presacral corridor must be specifically documented to distinguish from other anterior approaches.

Why do claims for CPT 22586 get denied?

The most common denial reasons for 22586 include: billing without a primary arthrodesis code, insufficient documentation of the presacral approach, medical necessity denials due to lack of conservative treatment documentation, bundling issues with other spinal procedures, and failure to demonstrate radiographic evidence of pathology at L5-S1. Each denial type requires specific appeal strategies with targeted documentation.