Surgical · Spine

Partial excision of a single thoracic vertebral body to remove a bony lesion or diseased segment of the posterior vertebral element in the thoracic spine.

Verified May 8, 2026 · 5 sources ↓

Medicare: $867.76
Work RVU: 10.8
Global, days: 90
Region: Spine

Drawn from CMSAAPCBedrockbilling

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

Specify the exact thoracic vertebral level(s) involved (e.g., T6) — not just 'thoracic spine'
Describe the nature of the lesion or pathology excised (tumor, infection, destructive lesion) with pre-op imaging correlation
Identify whether the excision involved the vertebral body, posterior elements, or both, and confirm it was contained within a single vertebra
Document operative time and any unusual intraoperative findings that support modifier 22 if the procedure substantially exceeded typical complexity
Confirm the number of vertebral segments treated — each additional contiguous thoracic level requires add-on code 22103
Pathology submission record if lesion was sent for histologic analysis, to support medical necessity

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 24 Unrelated E/M during global 51 Multiple procedures 58 Staged or related 59 Distinct service 62 Co-surgeons 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon LT Left side RT Right side XS Separate structure

What this code covers

Source · Editorial summary grounded in 5 cited references ↓

CPT 22101 describes partial removal of one thoracic vertebra — specifically excision of a bony lesion or diseased area confined to that single vertebral body or posterior element. The procedure targets the thoracic spine (T1–T12) and is used when pathology such as a tumor, infection, or destructive bony lesion requires surgical resection of the involved vertebral tissue. When additional contiguous thoracic vertebrae require the same excision at the same operative session, add-on code 22103 is reported for each additional vertebral segment beyond the first.

The 90-day global period means all routine post-op care through day 90 is bundled — no separate E/M visits during that window unless an unrelated condition is documented and modifier 24 is appended. Complications requiring a return to the OR for a related procedure within the global period get modifier 78; an unrelated procedure gets modifier 79. Given the complexity of thoracic vertebral excision, modifier 22 is supportable when operative time or difficulty substantially exceeds the typical case, but documentation must quantify the added work.

NCCI bundling is a significant concern for 22101. It appears as a Column 2 code against several spinal cord decompression procedures (e.g., 63082, 63086, 63088), meaning if a decompression is the primary procedure, the vertebral excision may be considered included — a modifier may permit separate billing when the excision is a truly distinct service at a separate anatomic site. Review NCCI PTP edits before billing 22101 alongside any same-session spinal decompression or debridement code.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU vs. total RVU

The work RVU (10.8) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (25.98) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	10.8
Practice expense RVU	11.75
Malpractice RVU	3.43
Total RVU	25.98
Medicare national rate	$867.76
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	$867.76
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 22101 get rejected.

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

Medical necessity not established — missing pre-op imaging or diagnosis documentation linking pathology to the specific vertebral level
Unbundling flag when billed same-day with spinal cord decompression codes (63082, 63086, 63088) without a valid NCCI modifier and distinct anatomic site documentation
Incorrect level count — billing 22101 alone when multiple thoracic levels were excised and 22103 add-on units were omitted
Modifier 22 denied for increased procedural complexity when operative note lacks specific quantification of added time or difficulty
Global period violation — post-op E/M billed within 90 days without modifier 24 and documentation of an unrelated condition

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 5 cited references ↓

01When do I add 22103 to a 22101 claim?

Report 22103 for each additional contiguous thoracic vertebral segment excised at the same session. If you excise T5 and T6, bill 22101 once and 22103 once. The operative note must name each level treated.

02Can 22101 be billed with a same-day spinal decompression like 63082 or 63088?

NCCI lists 22101 as Column 2 to those decompression codes, meaning it bundles by default. Separate billing requires a modifier and documentation that the vertebral excision was performed at a distinct anatomic site or represents a clearly separate service — not simply part of the same decompression approach.

03Does the 90-day global period apply to 22101?

Yes. The 90-day global covers the day before surgery, the procedure day, and all routine post-op care through day 90. E/M visits for unrelated conditions within that window need modifier 24 and documentation clearly establishing the unrelated nature of the visit.

04What supports a modifier 22 on 22101?

Increased procedural complexity — documented in the operative note with specifics: actual operative time vs. typical, unusual anatomy, hemorrhage requiring additional control, or prior surgery at the same level creating significant adhesions. A note that just says 'complex' will not sustain the modifier on audit.

05Is 22101 appropriate for both tumor and infection cases?

Yes, provided the pathology is confined to a single thoracic vertebra and the procedure involves partial excision of that vertebral segment. The ICD-10 diagnosis must match — primary or metastatic bone tumor, osteomyelitis, or comparable destructive vertebral lesion. Payers will cross-check the diagnosis code against imaging and pathology reports.

06What is the site-of-service impact for 22101?

HOPD and ASC payments differ significantly — see the site-of-service comparison table on this page. The physician professional fee is the same regardless of facility setting, but the facility reimbursement varies. Most thoracic vertebral excisions are performed in a hospital HOPD or inpatient setting given the acuity involved.

Sources & references

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

Mira Scribe

Mira's AI scribe captures the thoracic vertebral level treated, the pathology type and its extent within the vertebra, the surgical approach, operative duration, and whether additional contiguous levels were excised in the same session. This prevents the two most common denial triggers for 22101: vague level documentation that auditors flag as unsupported and missing add-on code 22103 units when multi-level excision is performed.

See how Mira captures CPT 22101 documentation