Open hip joint arthrotomy with intra-articular soft tissue biopsy specimen collection

Verified May 8, 2026 · 6 sources ↓

Medicare: $556.46
Total RVUs: 16.66
Global, days: 90
Region: Hip

Drawn from CMSFastrvuAAPCEvicorePayerprice

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Operative note must specify that the hip joint capsule was entered and the arthrotomy was performed — 'soft tissue biopsy' alone is insufficient
Document the surgical indication and clinical reason for open rather than arthroscopic approach
Specify laterality (left or right hip) explicitly in the operative note and procedure order
Record the exact anatomic location within the joint from which the biopsy specimen was taken
Include the pathology requisition or specimen label confirming intra-articular tissue was submitted
Note any prior imaging (MRI, CT) or aspiration findings that prompted the open biopsy decision

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 52 Reduced services 58 Staged or related 59 Distinct service 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

27052 describes an open arthrotomy of the hip joint performed specifically to obtain a biopsy of intra-articular soft tissue. The surgeon incises through the joint capsule to access the hip joint directly, excises a tissue sample, and closes the arthrotomy. This is a distinct procedure from soft tissue biopsies of the pelvis and hip area (27040–27041), which do not require entering the joint space.

The 90-day global period covers all routine postoperative care through day 90, including wound checks and suture removal. Any unrelated procedure or E/M visit during that window requires modifier 79 or 24, respectively. 27052 is bundled into hip replacement codes 27125–27138 per NCCI — if biopsy findings are driving a same-session arthroplasty decision, you cannot unbundle it.

Prior authorization is required for both commercial and Medicare Advantage plans under several major payer policies, including eviCore joint surgery guidelines. Confirm PA status before scheduling. The arthroscopic alternative for hip joint biopsy is 29860 (diagnostic hip arthroscopy with or without synovial biopsy); 27052 is the open approach and carries a materially higher RVU.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	7.23
Practice expense RVU	7.9
Malpractice RVU	1.53
Total RVU	16.66
Medicare national rate	$556.46
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	$556.46
HOPD (APC 5112) Hospital outpatient department	$1,642.82
ASC (PI A2) Ambulatory surgical center (freestanding)	$872.87

Common denial reasons

The recurring reasons claims for CPT 27052 get rejected.

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

Missing or pending prior authorization — both commercial and Medicare Advantage payers commonly require PA for this code
Bundling denial when billed same-session as hip replacement codes 27125–27138, which already include 27052
Laterality not documented: claim submitted without LT or RT modifier when payer requires it
Insufficient operative documentation — notes that describe only a 'needle biopsy' or soft tissue excision without confirming joint entry
Wrong code selection: payer downcodes to 27040 or 27041 when documentation doesn't confirm intra-articular access

Frequently asked questions

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

01Is 27052 ever appropriate same-day as a hip replacement?

No. 27052 is bundled into hip replacement codes 27125–27138 per NCCI. Billing it separately on the same date will trigger a bundling denial regardless of modifier use.

02When should you use 27052 vs. 29860 for a hip joint biopsy?

Use 27052 for an open arthrotomy approach. Use 29860 when the biopsy is obtained arthroscopically. The approach documented in the operative note drives the code selection — don't default to the arthroscopic code if the surgeon opened the joint.

03Do you need a modifier for laterality on 27052?

Medicare does not require LT/RT on unilateral hip procedures, but most commercial payers do. Apply LT or RT routinely to avoid payer-specific denials, and confirm payer policy before submitting without one.

04What modifier applies if the surgeon performs 27052 to work up a problem unrelated to a prior hip surgery still within its 90-day global?

Modifier 79 — unrelated procedure during a global period. Modifier 78 applies only to unplanned returns for a complication related to the original procedure. Don't invert these.

05Does 27052 require prior authorization?

Yes, for both commercial and Medicare Advantage plans under major payer utilization management programs, including eviCore joint surgery guidelines. Obtain PA before scheduling the case — retro-auth is routinely denied.

06Can modifier 22 be used with 27052?

Yes, if the procedure was substantially more complex than typical — for example, severe adhesions, prior hardware, or significantly distorted anatomy requiring substantially increased time and effort. Document the added complexity explicitly in the operative note; a generic reference to 'difficult case' will not support modifier 22.

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 arthrotomy approach, confirmation that the joint capsule was entered, the intra-articular biopsy site, laterality, and the clinical indication from dictation. This prevents the most common audit flag — operative notes that describe soft tissue sampling without confirming joint space entry, which triggers downcoding to 27040 or 27041.

See how Mira captures CPT 27052 documentation