Arthroscopic surgical debridement of the shoulder involving three or more discrete anatomic structures.

Verified May 8, 2026 · 8 sources ↓

Medicare: $558.80
Total RVUs: 16.73
Global, days: 90
Region: Shoulder

Drawn from CMSAAOSAAPCBlog

Documentation requirements

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

Source · Editorial brief grounded in 8 cited references ↓

Identify each debrided structure by name — at least three discrete anatomic structures must be documented (e.g., humeral articular cartilage, labrum, articular capsule, rotator cuff articular side, subacromial bursa).
Specify the anatomic location of each debrided structure to support unbundling if 29824, 29827, or 29828 is also billed — document that debridement was performed in a different area of the shoulder.
Describe the nature and extent of debridement for each structure (e.g., chondroplasty, synovectomy, fraying resection) — 'extensive debridement performed' without structure-level detail is insufficient.
Operative note must name the surgical approach and confirm arthroscopic visualization of all debrided areas.
Document medical necessity for each debrided structure with corresponding pre-op imaging or exam findings tied to ICD-10 diagnosis codes.
If billing with 29824, 29827, or 29828, the note must clearly distinguish the anatomic area of debridement from the primary procedure site.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 59 Distinct service LT Left side RT Right side 78 Unplanned return — related 79 Unrelated during global XS Separate structure

What this code covers

Source · Editorial summary grounded in 8 cited references ↓

CPT 29823 covers arthroscopic shoulder debridement when the surgeon works on three or more discrete structures — for example, humeral articular cartilage, the labrum, the articular side of the rotator cuff, and the subacromial bursa each count as one structure. The 2021 CPT revision made the structure-count explicit and replaced vague language about 'multiple soft or hard tissues.' If the operative note doesn't identify at least three named structures, the claim belongs at 29822, not 29823.

The NCCI bundling rule is the biggest coding trap here. As a default, 29823 is bundled into nearly every other shoulder arthroscopy procedure — even when the debridement is performed in a different area of the same shoulder. The three exceptions where 29823 can be separately reported (with modifier 59 or an X modifier, and only when debridement is performed in a different area) are: 29824 (Mumford distal claviculectomy), 29827 (rotator cuff repair), and 29828 (biceps tenodesis). No other shoulder arthroscopy code supports unbundling 29823.

The 90-day global period applies. Any E/M visit or procedure related to the shoulder within 90 days of surgery is included. Unrelated problems need modifier 24 (E/M) or 79 (unrelated procedure). Fluoroscopy used during the arthroscopy is not separately billable — it's integral to the procedure per NCCI policy.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	7.78
Practice expense RVU	7.39
Malpractice RVU	1.56
Total RVU	16.73
Medicare national rate	$558.80
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	$558.80
HOPD (APC 5113) Hospital outpatient department	$3,342.87
ASC (PI A2) Ambulatory surgical center (freestanding)	$1,644.87

Common denial reasons

The recurring reasons claims for CPT 29823 get rejected.

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

Bundled into the primary shoulder arthroscopy code when debridement is performed in the same anatomic area — NCCI edits prohibit separate billing except with 29824, 29827, or 29828.
Operative note documents fewer than three discrete structures, supporting only 29822 (limited debridement, 1–2 structures).
Missing modifier 59 or XS when billing 29823 alongside 29824, 29827, or 29828, even with documentation supporting a different anatomic area.
Payer downcodes 29823 to 29822 when the note uses generic language like 'extensive debridement of the rotator cuff' without naming additional structures.
Claim denied as not medically necessary when diagnosis codes don't correlate to each debrided structure documented in the operative note.

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 8 cited references ↓

01What's the minimum documentation needed to bill 29823 instead of 29822?

Three or more discrete named anatomic structures must be documented as debrided. 'Extensive debridement' in the title of the operative note is not enough — each structure must be identified individually. If you can only name two, bill 29822.

02Can 29823 be billed with 29827 (rotator cuff repair) on the same day?

Yes, but only if the debridement was performed in a different anatomic area of the shoulder than the rotator cuff repair. The operative note must make that distinction explicit. This is one of only three NCCI exceptions; use modifier 59 or XS.

03Can 29823 be billed with 29826 (acromioplasty add-on) on the same day?

29826 is not one of the three NCCI exceptions for 29823. If subacromial decompression alone drives the visit, report 29823 or 29822 based on structure count — not 29826 as an add-on to a debridement-only case. Check your payer's specific NCCI edits before submitting.

04What modifier applies when billing 29823 with an allowed companion code like 29827?

Modifier 59 is the standard NCCI-associated modifier. Modifier XS (separate structure) is the more specific X-modifier and is preferred by some payers. Confirm which your MAC accepts — most accept either, but XS is increasingly preferred for anatomic distinction arguments.

05Is the 90-day global period for 29823 the same as for open shoulder surgery?

Yes. 29823 carries a 90-day global period. All routine post-op shoulder care, dressing changes, and related E/M visits are bundled through day 90. Use modifier 24 for unrelated E/M visits and modifier 79 for unrelated procedures performed in the global window.

06Can fluoroscopy be billed separately during the arthroscopy?

No. Per NCCI policy, fluoroscopy performed during any arthroscopic procedure is integral to the procedure and is not separately reportable.

07What ICD-10 codes pair most commonly with 29823?

Common pairings include M75.1x (rotator cuff syndrome), M19.011 (primary osteoarthritis, right shoulder), S43 series (shoulder joint injuries), and M75.5 (bursitis). Each diagnosis should map to a documented, debrided structure — a mismatch between the diagnosis list and the structures named in the operative note is a red flag in audit.

Sources & references

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

Mira AI Scribe

Mira's AI scribe captures each anatomic structure debrided during shoulder arthroscopy — flagging the count against the 29822 vs. 29823 threshold and noting the specific shoulder region where debridement occurred. When 29827, 29828, or 29824 is also dictated, the scribe highlights whether the debridement site is anatomically distinct, which is the prerequisite for appending modifier 59 or XS and surviving NCCI review. This prevents downcoding to 29822 and catches unbundling errors before the claim is submitted.

See how Mira captures CPT 29823 documentation