20520

Surgical removal of a foreign body (such as a splinter, thorn, bullet fragment, or gravel) lodged in a muscle or tendon sheath, performed through a skin incision — simple complexity.

Verified May 8, 2026 · 6 sources ↓

Medicare: $229.80
Total RVUs: 6.88
Global, days: 10
Region: General

Drawn from CMSAAPCMdclarityFindacode

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Identify the foreign body type, size, and material (e.g., wood splinter, metal fragment, gravel)
Document the anatomic location with specificity — muscle group or tendon sheath involved, laterality, and body region
Confirm foreign body depth relative to fascia; state explicitly that it was superficial to fascia to support 'simple' designation over 20525
Describe the surgical approach: incision size, method of foreign body identification (palpation, imaging guidance), and retrieval technique
Record that the foreign body was successfully retrieved and note wound closure method
If imaging guidance was used intraoperatively, document separately and bill the appropriate radiology code with modifier 26 if professional component only

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 25 Significant separate E/M 26 Professional component 50 Bilateral procedure 51 Multiple procedures 52 Reduced services 59 Distinct service 76 Repeat, same physician 77 Repeat, another physician 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side XS Separate structure

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 20520 covers simple surgical removal of a foreign body embedded in muscle or tendon sheath tissue. 'Simple' means the object is superficial to the fascia and retrieval does not require extensive dissection or navigation around neurovascular structures. When the foreign body is below the fascia or the removal is complicated by depth, location, or anatomic involvement, use 20525 instead.

This code applies across a wide range of anatomic sites — including hand, forearm, wrist, spine, flank, head, and neck — because CPT does not have site-specific foreign body removal codes for every region. Office and urgent care are the dominant places of service. The 10-day global period means routine follow-up through post-op day 10 is included in the fee; bill a separate E/M within that window only with modifier 24 (unrelated) or 25 (same-day, significant and separately identifiable).

A critical NCCI pitfall: do not separately bill 20550 (tendon sheath injection) when the only injection was local anesthesia administered to perform the 20520. CMS NCCI policy explicitly identifies this as a misuse. If debridement (e.g., 11042) or wound exploration (20103) is also performed and separately documented, modifier 59 or XS may apply — but the bundling relationship with 20103 must be reviewed before appending.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	1.85
Practice expense RVU	4.76
Malpractice RVU	0.27
Total RVU	6.88
Medicare national rate	$229.80
Global period	10 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	$229.80
HOPD (APC 5072) Hospital outpatient department	$1,687.37
ASC (PI P3) Ambulatory surgical center (freestanding)	$159.78

Common denial reasons

The recurring reasons claims for CPT 20520 get rejected.

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

Upcoding flag when 20525 is billed but documentation supports only superficial, uncomplicated removal — auditors downcode to 20520
Separate billing of 20550 for local anesthetic injection bundled into the 20520 procedure — NCCI edit prohibits this combination
Missing laterality modifier when payer requires LT or RT for extremity sites
E/M billed same-day without modifier 25, causing the office visit to deny as included in the global
Incorrect bundling with wound debridement (11042) or exploration (20103) without modifier 59 or XS to establish distinct procedural service

Frequently asked questions

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

01What is the difference between 20520 and 20525?

20520 is simple removal — the foreign body is superficial to the fascia and retrieval is straightforward. 20525 is deep or complicated: the object is below the fascia, or removal requires extensive dissection, unusual depth, or proximity to critical structures. Document depth explicitly to defend whichever code you bill.

02Can I bill 20550 for the local anesthetic injection used during 20520?

No. CMS NCCI policy explicitly states that 20550 cannot be reported alongside 20520 when the only injection performed was local anesthesia to accomplish the removal. Billing both is a known audit trigger.

03Can 20520 be used for foreign body removal from the hand, wrist, or fingers?

Yes. CPT does not have site-specific codes for every anatomic region, so 20520 and 20525 serve as the default foreign body removal codes for hand, wrist, forearm, fingers, spine, flank, and similar areas lacking dedicated codes.

04The global period is 10 days — what can I bill during that window?

Routine post-op visits within 10 days are included in the 20520 fee. To bill a separately identifiable E/M on the same day as surgery, append modifier 25. For unrelated E/M visits during the 10-day global, use modifier 24. Do not bill dressing changes or suture removal separately.

05Do I need imaging guidance to bill 20520, and can I bill it separately?

Imaging guidance is not required for 20520. If fluoroscopic or ultrasound guidance is used to locate or retrieve the foreign body, it can be billed separately with the appropriate radiology code — append modifier 26 if billing only the professional component.

06If I also perform wound debridement at the same encounter, can I bill 11042 alongside 20520?

There is an NCCI bundling relationship between 11042 and 20520. If the debridement is a distinct service — separate site or separately documented medically necessary work — modifier 59 or XS may allow separate billing. Review the NCCI edit and ensure documentation supports the distinct service before appending.

Sources & references

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

Mira AI Scribe

Mira's AI scribe captures foreign body type and material, precise anatomic location (named muscle group or tendon sheath), depth relative to fascia, incision details, and confirmation of successful retrieval from the surgeon's dictation. That depth documentation is what separates a defensible 20520 from a 20525 dispute — and prevents auditors from flagging the note for missing complexity justification.

See how Mira captures CPT 20520 documentation