Summary & Overview

CPT 29835: Arthroscopic Synovectomy of Elbow

CPT code 29835 denotes an arthroscopic synovectomy of the elbow: a minimally invasive surgical procedure to inspect the elbow joint with an arthroscope and excise inflamed synovial tissue contributing to pain and limited range of motion. This procedure is commonly performed in ambulatory surgery centers and hospital outpatient departments and is relevant to orthopedic surgeons, surgical services managers, and payers managing musculoskeletal surgical utilization and payment policies.

Key payers in this national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and service setting, typical coding and billing considerations, and performance benchmarks where available. The publication also summarizes payer coverage themes and common modifier usage when applicable, and it contextualizes CPT code 29835 within common elbow arthroscopy procedures.

This summary provides clinicians, coding professionals, and policy analysts with the clinical context and payer landscape needed to understand where CPT code 29835 fits into surgical care for elbow synovitis and related conditions. Data not available in the input is noted where relevant.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare29835CPTelbow arthroscopysynovectomyorthopedic surgeryambulatory surgerysurgical codingmusculoskeletal

Billing Code Overview

CPT code 29835 describes an arthroscopic synovectomy of the elbow, in which a provider uses an arthroscope to inspect the interior of the elbow joint and excises inflamed synovial tissue that is causing pain and restricted motion. The procedure involves insertion of instruments through small portals to visualize the joint surfaces and joint capsule, assess the synovial membrane, and remove portions of synovium as indicated.

Service type: Arthroscopic surgical procedure of the elbow involving diagnostic inspection and therapeutic excision of synovial tissue.
Typical site of service: Ambulatory surgery center or hospital outpatient department, with possible performance in an inpatient operating room depending on clinical circumstances.

Clinical & Coding Specifications

Clinical Context

A 45-year-old right-hand-dominant patient presents with a 6-month history of progressive lateral elbow pain, stiffness, and mechanical catching that limits range of motion despite conservative care (rest, NSAIDs, and physiotherapy). Physical exam demonstrates joint line tenderness and reduced flexion-extension arc. Imaging (plain radiographs and MRI) shows synovial proliferation and hypertrophic synovitis within the elbow joint without large osteochondral loose bodies. The orthopedic surgeon schedules an elbow arthroscopy for diagnostic inspection and synovectomy.

In the operating room, after regional block or general anesthesia, the surgeon establishes standard arthroscopic portals to visualize the radiocapitellar and ulnohumeral joints. The provider uses an arthroscope to inspect intra-articular structures, identifies inflamed synovial tissue causing mechanical symptoms and pain, and introduces motorized shavers and graspers to perform a partial synovectomy and debridement. Hemostasis is achieved and portals are closed. Postoperative workflow includes recovery room monitoring, discharge with activity modifications, a short course of analgesics, and a referral to physical therapy to regain range of motion.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the synovectomy required substantially greater work, complexity, or operative time than usual for `29835`.
`52`	Reduced services	Use when the arthroscopic synovectomy is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use if the procedure is started but then aborted due to an intraoperative complication or unexpected finding.
`59`	Distinct procedural service	Use when another distinct procedure not normally reported with `29835` is performed at a separate site or distinct session.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct surgical portions of the arthroscopy.
`76`	Repeat procedure by same physician	Use if the same surgeon performs the same arthroscopic synovectomy procedure again during the postoperative period.
`77`	Repeat procedure by another physician	Use if a different surgeon repeats the same arthroscopic procedure during the postoperative period.
`78`	Unplanned return to the operating/procedure room for a related procedure during the postoperative period	Use when the patient returns to the OR for a related complication such as postoperative bleeding or persistent mechanical blockage.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use when an unrelated procedure is performed during the global period.
`GT`	Via interactive audio and video telecommunications (Note: not in raw list)	Data not available in the input.

Taxonomy Code	Specialty	Notes
207L00000X	Orthopedic Surgery	Primary specialty performing elbow arthroscopy and synovectomy.
207K00000X	Hand Surgery	Hand/upper-extremity surgeons perform synovectomies involving elbow joint pathology affecting hand/upper limb function.
2080P0207X	Sports Medicine	Sports medicine specialists or fellowship-trained surgeons commonly perform arthroscopic elbow procedures for athletic-related synovitis.
207R00000X	Physical Medicine & Rehabilitation	Often manages pre- and postoperative nonoperative care and postoperative rehabilitation coordination.
207Y00000X	Rheumatology	Manages inflammatory etiologies that may require surgical synovectomy when refractory to medical therapy.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
Data not available in the input.	Data not available in the input.	Data not available in the input.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`29835`	Arthroscopy, elbow, surgical; synovectomy, partial	Primary procedure: diagnostic inspection and resection of inflamed synovial tissue within the elbow joint.
`29834`	Arthroscopy, elbow, diagnostic, with or without synovial biopsy	Performed when only diagnostic assessment or biopsy is needed without formal synovectomy; may be done prior to or instead of `29835`.
`29837`	Arthroscopy, elbow, debridement/distal claviculectomy (note: distal claviculectomy is shoulder-related)	Selected debridement codes may be applied for chondral debridement performed concurrently; ensure appropriate code selection for elbow-specific debridement.
`20610`	Arthrocentesis, aspiration and/or injection, major joint or bursa (e.g., elbow)	May be performed preoperatively for diagnostic aspiration or postoperatively for intra-articular medication administration.
`99024`	Postoperative follow-up visit global surgical package (note: by payer rules)	Used for reporting routine postoperative care visits included in the global period when applicable.