Direct Answer
Orthopedic surgery billing is defined by high-value procedures with complex global periods, extensive arthroscopic procedure coding with multiple add-on codes, and a high volume of prior authorization requirements. The most financially significant billing areas in orthopedics are: total joint replacement (which carries a 90-day global period encompassing significant post-operative management); arthroscopy (where the correct selection of procedure-specific codes from the 29800-29999 range with appropriate add-ons can significantly affect reimbursement); fracture care (where the "with vs. without manipulation" and "open vs. closed" distinctions determine the correct code); and sports medicine biologics such as PRP injections, which have inconsistent payer coverage and should not be billed as covered services without confirming specific plan coverage. The 90-day global period for major orthopedic procedures is the single most important billing concept for orthopedic practices to master.
Table of Contents
Total Joint Replacement Billing
Total joint arthroplasty (TJA) is among the highest-reimbursement procedures in outpatient surgery, but its 90-day global period creates significant revenue cycle complexity: Total hip arthroplasty (THA): 27130 — Arthroplasty, acetabular and proximal femoral prosthetic replacement (total hip arthroplasty), with or without autograft or allograft; 27132 — Conversion of previous hip surgery to total hip arthroplasty; Total knee arthroplasty (TKA): 27447 — Arthroplasty, knee, condyle and plateau; medial AND lateral compartments with or without patella resurfacing; Total shoulder arthroplasty: 23472 — Arthroplasty, glenohumeral joint; total shoulder (total shoulder prosthesis); 23473 — Reverse total shoulder arthroplasty; 23474 — Revision of total shoulder arthroplasty; Total ankle arthroplasty: 27702 — Arthroplasty, ankle; with implant (total ankle); Partial (unicompartmental) knee replacement: 27446 — Arthroplasty, knee, condyle and plateau; medial OR lateral compartment with or without patella resurfacing; Revision joint replacement — these carry significantly higher RVUs than primary joint replacement: 27134 — Revision of total hip arthroplasty; both components; 27137 — Revision; acetabular component only; 27138 — Revision; femoral component only; 27487 — Revision of total knee arthroplasty, with or without allograft; femoral and entire tibial component; 90-day global period management: the surgical fee for TJA includes all routine post-operative care for 90 days; orthopedic practices must track all TJA cases by surgery date and global period expiration; visits within the global period for unrelated conditions: bill with Modifier 24 (unrelated E&M); return to OR for complications: Modifier 78; staged procedures: Modifier 58; Implant billing: the prosthetic implant is a pass-through cost billed by the facility (hospital or ASC) — the surgeon does not separately bill for the implant device; however, the surgeon's choice of implant affects the facility's cost significantly.
Arthroscopy CPT Coding
Arthroscopic procedures have their own CPT code range (29800-29999) with procedure-specific codes organized by joint and technique: Knee arthroscopy: 29870 — Knee arthroscopy, diagnostic, with or without synovial biopsy (separate procedure); 29871 — With irrigation and drainage; 29873 — With lateral retinacular release; 29874 — With removal of foreign body or loose body; 29875 — With synovectomy, limited; 29876 — With synovectomy, major; 29877 — With debridement/shaving of articular cartilage; 29879 — With abrasion arthroplasty or multiple drilling or microfracture; 29880 — With meniscectomy (medial OR lateral, including any meniscal shaving); 29881 — With meniscectomy, medial AND lateral (including any meniscal shaving); 29882 — With meniscus repair (medial or lateral); 29883 — With meniscus repair (medial and lateral); 29884 — With meniscal transplantation (medial or lateral); 29885 — With drilling for osteochondritis dissecans with bone grafting; Shoulder arthroscopy: 29819 — Shoulder arthroscopy with removal of loose body or foreign body; 29820 — With synovectomy, partial; 29821 — With synovectomy, complete; 29822 — With debridement, limited; 29823 — With debridement, extensive; 29824 — With distal claviculectomy; 29825 — With lysis and resection of adhesions; 29826 — With decompression of subacromial space with or without acromioplasty; 29827 — With rotator cuff repair; 29828 — With biceps tenodesis; Hip arthroscopy: 29860 — Hip arthroscopy, diagnostic, with or without synovial biopsy; 29861 — With removal of loose body or foreign body; 29862 — With debridement/shaving of articular cartilage (chondroplasty); 29863 — With synovectomy; Multiple procedures at same arthroscopic session: the most complex procedure is the primary code (100%); additional procedures at the same session are billed with Modifier 51; NCCI edits define which arthroscopy codes are mutually exclusive; the diagnostic arthroscopy (29870 for knee, 29819 for shoulder) is a "separate procedure" — it is included in any other arthroscopic procedure performed at the same session and should not be separately billed.
Fracture Care Coding
Fracture care coding requires accurate characterization of the treatment type — open vs. closed treatment and with vs. without manipulation: Closed treatment without manipulation: the fracture is stabilized (splinted, casted) without physically moving the bone fragments; used when the fracture is non-displaced or minimally displaced and does not require reduction; Closed treatment with manipulation: physical reduction of the fracture (manipulation) is performed to restore alignment; used for displaced fractures that can be reduced non-surgically; Open treatment: surgical incision is required to expose and fix the fracture; typically involves internal fixation (plates, screws, intramedullary nail); Percutaneous skeletal fixation: fixation is achieved percutaneously (without open exposure) using pins or screws placed through small stab incisions under fluoroscopic guidance; does not require formal open surgical incision; Example — distal radius fracture (Colles fracture): 25600 — Closed treatment of distal radial fracture (e.g., Colles or Smith type) or epiphyseal separation; without manipulation; 25605 — With manipulation; 25606 — Percutaneous skeletal fixation of distal radius fracture, with manipulation; 25607 — Open treatment of distal radial fracture with internal fixation, with or without bone grafting, one fragment; 25608 — Two fragments; 25609 — Three or more fragments; Femur fractures: 27500 — Closed treatment of femoral shaft fracture; 27506 — With manipulation; 27510 — Closed treatment of femoral epiphyseal fracture; 27520 — Without manipulation; 27535 — Open treatment of tibial plateau fracture; Casting and splinting: when provided separately from fracture care (e.g., applied at a different visit), casting/splinting is billable: 29000-29799 (casting/strapping codes); when casting is part of the fracture care (includes manipulation or is applied at the same session), it is bundled into the fracture care code; Fracture care vs. E&M: fracture care codes include the casting/splinting and follow-up care in the global period; E&M codes are not separately billed for the fracture care encounter in most circumstances unless an unrelated significant problem is also addressed.
Sports Medicine and Biologics Billing
Sports medicine in orthopedics encompasses office-based injections, ultrasound guidance, and emerging biologic treatments: Corticosteroid joint injections: same codes as rheumatology — 20610-20611 (major joint), 20605-20606 (intermediate joint), 20600-20604 (small joint); Hyaluronic acid (viscosupplementation): same J-code billing as rheumatology; Medicare covers for knee osteoarthritis; Platelet-Rich Plasma (PRP) injection: 0232T — Injection(s), platelet rich plasma, any tissue, including image guidance, harvesting and preparation when performed; PRP is not covered by Medicare for any indication; commercial payer coverage is extremely variable — some plans cover PRP for specific indications (chronic tendinopathy), others exclude PRP entirely; ALWAYS verify specific plan coverage before performing PRP; document that the patient understands PRP may not be covered and obtain financial consent; Stem cell/cellular therapy injections: generally considered experimental/investigational by Medicare and most commercial payers; not separately payable as a covered service for most indications; patient self-pay only; bone marrow aspirate concentrate (BMAC) is in the same category; ACL reconstruction: 27407 — Repair, primary, torn ligament; 27409 — Repair, collateral and cruciate ligaments; 27427 — Ligamentous reconstruction (augmentation), knee; extra-articular; 27428 — Intra-articular; 27429 — Intra-articular (open) with extra-articular reconstruction; SLAP repair and shoulder instability: 29807 — Arthroscopy, shoulder, surgical; with repair of SLAP lesion; 29806 — With capsulorrhaphy; Achilles tendon repair: 27650 — Repair, primary, open or percutaneous, Achilles tendon; Ultrasound guidance for injections: when musculoskeletal ultrasound guidance is used for injections: +76942 — Ultrasound guidance for needle placement; documentation must include: real-time ultrasound visualization of needle placement; permanently stored image showing needle position; report of the guidance procedure; ultrasound guidance adds significant coding complexity and value to office-based injections.
Orthopedic Revenue Cycle
Orthopedic practices have some of the most procedure-intensive billing in outpatient medicine: Surgical case billing workflow: for each surgical case, the billing team needs: operative report (to select the correct CPT code combination); implant log (for any implant-related billing at the facility level); facility name and account number (for coordinating the professional fee with the correct facility claim); anesthesia provider (to coordinate any applicable surgical team billing); pre-authorization documentation showing what was authorized vs. what was performed; Post-operative visit billing: routine post-op visits within the global period are included in the surgical fee; identify post-op visits that qualify for billing: Modifier 24 — unrelated problem addressed; Modifier 25 — significant separately identifiable E&M at same session as a procedure; Modifier 57 — decision for surgery; Worker's compensation (WC) orthopedic billing: WC cases have their own fee schedules (state-specific) and billing requirements (separate claim forms, employer/carrier information); WC requires detailed reporting of work-relatedness of the injury; WC claims frequently require narrative reports (initial evaluation, progress reports, maximum medical improvement determination); keep WC cases in a separate billing workflow from commercial/Medicare cases; DME prescription and billing: orthopedists frequently prescribe DME (knee braces, ankle braces, crutches, CPM machines); if the practice provides DME directly to patients (with DMEPOS Medicare supplier number), the practice bills using the appropriate HCPCS L-codes; without a DMEPOS number, prescribe to a DME supplier and do not bill for DME; Implant cost tracking: implant costs for total joint replacement and spinal surgery are significant line items for facility billing; practices performing procedures in their own ASC should implement rigorous implant inventory management and implant cost analysis by procedure type; surgical block scheduling: efficient OR block utilization affects total practice revenue — practices should monitor OR block utilization rates and minimize room turnover time to maximize case volume.
FAQ
What services can be billed during the 90-day global period after total joint replacement, and which require specific modifiers?
The 90-day global period after total joint arthroplasty (THA, TKA, TSA) is among the most clinically and financially significant global periods in surgery. Understanding exactly what is included and what can be separately billed is essential for orthopedic practice revenue cycle management. What is INCLUDED in the 90-day global (not separately billable): all routine post-operative visits related to the surgical procedure; visits for expected post-operative symptoms (pain, swelling, wound healing, range of motion assessment); ordering and reviewing routine post-operative labs and imaging related to the procedure (e.g., post-op hip X-rays to check implant position); simple wound care and staple/suture removal; writing prescriptions for post-operative medications that are part of normal surgical care; What CAN be separately billed during the global period: Modifier 24 — Unrelated evaluation and management service: an office visit during the 90-day global period for a completely unrelated medical condition; example: a patient 3 weeks after TKA presents with a URI — the URI visit is unrelated to the knee surgery and can be billed with Modifier 24; the diagnosis on the Modifier 24 claim must be different from the surgical diagnosis; documentation must clearly state the problem is unrelated to the surgery; Modifier 78 — Return to operating room for related procedure: if a complication requires a return trip to the OR (e.g., wound irrigation and debridement for wound infection, manipulation under anesthesia for stiffness); the return-to-OR procedure is billable but reimbursed at a reduced rate (the global period for the original procedure resumes from the date of the complication procedure — this is important to track); Modifier 58 — Staged or related procedure: a planned subsequent procedure performed during the global period of the first (e.g., contralateral TKA scheduled 6 weeks after the first — billed with Modifier 58 to indicate it is a staged procedure); Modifier 79 — Unrelated procedure: a completely unrelated surgical procedure performed during the global period; Physical therapy referrals: physical therapy for post-joint-replacement rehabilitation is billed by the PT/OT under their own codes — this is not billed by the orthopedic surgeon and is not part of the orthopedic global period; the orthopedic surgeon writes the PT prescription; the PT bills independently.
How should arthroscopy add-on codes be used and what are the most common billing errors in knee arthroscopy coding?
Knee arthroscopy coding is one of the most commonly incorrectly billed areas in orthopedic surgery. The errors cluster around three areas: selecting the wrong primary code, incorrectly stacking multiple primary codes, and failing to use the correct add-on codes. Common error #1 — Billing diagnostic arthroscopy separately: 29870 (diagnostic knee arthroscopy) is designated as a "separate procedure" — this means it is considered a component of any other more definitive knee arthroscopy procedure performed at the same session; if a surgical knee arthroscopy is performed, do NOT separately bill 29870; the diagnostic "look" is included in the surgical code; error: 29870 + 29880 together on the same knee; correct: 29880 alone; Common error #2 — Billing 29880 vs. 29881 incorrectly: 29880 — meniscectomy, medial OR lateral; 29881 — meniscectomy, medial AND lateral (both compartments); if both the medial and lateral menisci were resected, bill 29881 (not 29880 twice and not 29880 with Modifier 51); the operative note must document which compartment(s) were addressed; Common error #3 — Bundled procedures billed as separate codes: NCCI edits define which combinations of knee arthroscopy codes can be billed together; for example: 29877 (chondroplasty) is generally bundled with 29880 (meniscectomy) when both are performed in the same compartment — they cannot both be billed; verify NCCI edits before billing any combination of knee arthroscopy codes; Common error #4 — Wrong code for chondroplasty vs. microfracture: 29877 — shaving of articular cartilage (chondroplasty); 29879 — abrasion arthroplasty or multiple drilling or microfracture; these are different procedures with different RVUs — the operative note must document the specific technique; Correct add-on use: +29882 or +29883 are add-on codes for meniscal repair that can be billed in addition to the diagnostic or surgical arthroscopy codes; always verify the specific add-on rules in the AMA CPT guidelines for the current year.
Orthopedic Billing Expertise for Joint Replacement, Arthroscopy, and Sports Medicine
Valiant Lifecare's orthopedic billing specialists handle total joint replacement global period tracking, arthroscopy CPT code selection with NCCI compliance, fracture care coding, sports medicine injection and biologics billing, worker's compensation orthopedic billing, and post-operative visit modifier management — delivering accurate billing across the full spectrum of orthopedic surgery and sports medicine.
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