Fusion · Spine

Removal of previously implanted posterior segmental spinal instrumentation — screws, rods, connectors, or crosslinks — from the spine.

Verified May 8, 2026 · 6 sources ↓

Medicare: $692.07
Total RVUs: 20.72
Global, days: 90
Region: Spine

Drawn from CMSHealioAAPCMdclarity

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 6 cited references ↓

Specify that instrumentation removed was posterior and segmental (not nonsegmental/Harrington-type, which maps to 22850)
Document the vertebral levels involved in the hardware construct being removed
State the clinical indication: hardware failure, infection, painful hardware, rejection, or staged removal plan
Confirm whether any new instrumentation was placed at the same session, and if so, identify the spinal levels to establish overlap or non-overlap
For global-period returns, document whether the return was planned/staged or unplanned/urgent to support correct modifier selection
Record the operative approach and intraoperative findings including condition of the existing hardware (e.g., broken rod, loosened screw)

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 58 Staged or related 59 Distinct service 76 Repeat, same physician 77 Repeat, another physician 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon AS PA/NP/CNS assistant LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

22852 covers surgical takedown of posterior segmental spinal hardware. 'Segmental' means the construct spans multiple vertebral levels with fixation points at each level — think pedicle screw-and-rod systems. The code is appropriate when removal is driven by hardware failure, infection, painful prominence, or rejection, and when the construct being removed is not immediately replaced at the same vertebral segments.

Level selection is the biggest coding trap here. If hardware is removed and new instrumentation is placed at an overlapping vertebral level, bill the new insertion code only — not 22852 plus the insertion code. If hardware is removed at L2-4 and new hardware is placed at an entirely separate, non-overlapping level (e.g., L5-S1), 22852 can be billed alongside the insertion code with modifier 59. When old hardware is removed and replaced at the exact same levels without extending the construct, use 22849 (reinsertion) instead — 22849 bundles both the removal and reinsertion.

The 90-day global applies. Removal performed during a prior surgery's global period for an infection-related complication requires modifier 78. If removal is unrelated to the original procedure, use modifier 79. For planned staged removal — for example, hardware removal as a scheduled second-stage after fusion maturation — append modifier 58.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	9.14
Practice expense RVU	8.73
Malpractice RVU	2.85
Total RVU	20.72
Medicare national rate	$692.07
Global period	90 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	$692.07
HOPD (APC 5114) Hospital outpatient department	$7,413.38
ASC (PI G2) Ambulatory surgical center (freestanding)	$3,695.53

Common denial reasons

The recurring reasons claims for CPT 22852 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

22852 billed alongside 22849 at the same vertebral levels — reinsertion code already includes the removal
22852 billed with a new instrumentation insertion code at overlapping vertebral levels without modifier 59 or with an overlapping level not documented as distinct
Missing or inadequate indication documentation — payers require explicit medical necessity (infection, failure, pain) for standalone hardware removal
Modifier absent or wrong when billed inside a prior surgery's 90-day global period — modifier 78 or 79 required depending on relatedness
22852 reported when 22850 (nonsegmental/Harrington rod) was the correct code — operative note must confirm segmental construct type

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01When should I use 22852 instead of 22849?

Use 22849 when old hardware is removed and new hardware is reinserted at the exact same vertebral levels without extending the construct. 22849 bundles both actions. Use 22852 when hardware is removed and nothing is placed at those same levels — or when new hardware goes to entirely different levels, in which case you can bill both codes with modifier 59 on 22852.

02Can 22852 be billed with a fusion code in the same session?

Yes, if the removal and fusion are performed at non-overlapping levels, or if removal is a distinct service from the fusion work. Modifier 59 is typically required on 22852 as the lower-valued code. Confirm payer preference for 59 versus X-modifiers before submitting.

03What modifier applies if hardware removal happens during another surgeon's global period?

If the same surgeon is performing removal related to the original procedure during its 90-day global, use modifier 78. If a different surgeon performs the removal, modifier 79 is typically used for an unrelated procedure. Confirm relatedness before selecting — inverting 78 and 79 is an audit flag.

04Is 22852 separately billable when removal is done to explore a spinal fusion?

No. When instrumentation is removed solely to access and explore the fusion — not because of hardware failure or another independent indication — the removal is considered integral to the exploration (22830) and is not separately reportable.

05What is the difference between 22850 and 22852?

22850 covers nonsegmental posterior instrumentation — historically Harrington rods with fixation only at the ends of the construct. 22852 is for segmental posterior instrumentation, meaning fixation at multiple vertebral levels (e.g., pedicle screw-and-rod systems). The operative note must specify the construct type to justify one code over the other.

06Does 22852 require modifier 51 when billed with a primary spinal procedure on the same day?

22852 is a standalone surgical code subject to multiple-procedure reduction rules. Modifier 51 may apply depending on payer policy when it is billed alongside a higher-valued primary procedure. Some payers apply the reduction automatically; others require the modifier explicitly. Verify with each payer.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira's AI scribe captures the construct type (segmental vs. nonsegmental), exact vertebral levels of the removed hardware, clinical indication, and whether any new instrumentation was placed and at which levels. That level-by-level detail is what separates a clean 22852 claim from a denial for incorrect code selection or missing medical necessity — and it's what justifies modifier 59 when removal and new insertion occur at non-overlapping segments in the same session.

See how Mira captures CPT 22852 documentation