Summary & Overview
CPT 29848: Arthroscopic Wrist Surgery for Carpal Tunnel Release
CPT code 29848 is a key billing code for surgical wrist arthroscopy with release of the transverse carpal ligament, a procedure most often used to treat carpal tunnel syndrome. This minimally invasive orthopedic surgery is performed in outpatient hospital settings and is recognized by major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare. The code is significant for both clinical and billing teams, as it represents a common intervention for patients experiencing median nerve compression and associated symptoms.
This publication provides a comprehensive overview of 29848, including payer coverage, clinical context, and related coding benchmarks. Readers will gain insight into the procedure's role in orthopedic surgery, typical sites of service, and its relationship to other wrist arthroscopy and nerve release codes. Policy updates and reimbursement trends are also discussed, offering a clear picture of how this code fits into broader healthcare delivery and payment models. The analysis is designed to inform stakeholders about the clinical indications, coding nuances, and payer landscape for this important surgical service.
CPT Code Overview
CPT code 29848 describes a surgical arthroscopy of the wrist with release of the transverse carpal ligament. This procedure is commonly performed to treat carpal tunnel syndrome, alleviating pressure on the median nerve by cutting the ligament. The service type is Orthopedic Surgery, and it is typically provided in an outpatient hospital setting (Place of Service 22). This minimally invasive approach offers patients a faster recovery compared to traditional open surgery.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult presenting with symptoms of carpal tunnel syndrome, such as numbness, tingling, and pain in the wrist and hand, often affecting either the right or left upper limb. The patient has failed conservative management, including splinting and physical therapy. The orthopedic surgeon evaluates the patient and confirms the diagnosis, often with clinical examination and nerve conduction studies. The patient is scheduled for an outpatient surgical arthroscopy of the wrist, specifically for release of the transverse carpal ligament, to relieve pressure on the median nerve. The procedure is performed in an outpatient hospital setting by an orthopedic surgeon, hand specialist, or orthopedic trauma specialist.
Coding Specifications
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Modifier
51(Multiple Procedures): Used when more than one procedure is performed during the same operative session. Indicates that29848is one of several procedures. -
Modifier
59(Distinct Procedural Service): Used to indicate that29848is a distinct service from other procedures performed on the same day, often when procedures are not normally reported together.
| Taxonomy Code | Specialty Name |
|---|---|
207X00000X | Orthopaedic Surgery |
207XS0117X | Orthopaedic Surgery of the Hand |
207XX0004X | Orthopaedic Trauma |
Related Diagnoses
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G56.00- Carpal tunnel syndrome, unspecified upper limb- Used when carpal tunnel syndrome is diagnosed but the affected side is not specified. Relevant for patients undergoing wrist arthroscopy for carpal tunnel release.
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G56.01- Carpal tunnel syndrome, right upper limb- Indicates carpal tunnel syndrome affecting the right wrist, directly related to the surgical release of the transverse carpal ligament.
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G56.02- Carpal tunnel syndrome, left upper limb- Indicates carpal tunnel syndrome affecting the left wrist, relevant for left-sided procedures.
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M25.531- Pain in right wrist- Used when the primary symptom is pain in the right wrist, which may be associated with carpal tunnel syndrome or other wrist pathology.
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M25.532- Pain in left wrist- Used for pain in the left wrist, which may be a presenting symptom leading to surgical intervention for carpal tunnel syndrome.
Related CPT Codes
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29846- Arthroscopy, wrist, surgical; excision of triangular fibrocartilage- May be performed in cases where there is damage to the triangular fibrocartilage complex, often in conjunction with carpal tunnel release if both pathologies are present.
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29847- Arthroscopy, wrist, surgical; internal fixation for fracture- Used when a wrist fracture requires internal fixation, which may be performed during the same session as carpal tunnel release if indicated.
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64721- Neuroplasty and/or transposition; median nerve at carpal tunnel- An open procedure for median nerve decompression, considered an alternative to arthroscopic release (
29848).
- An open procedure for median nerve decompression, considered an alternative to arthroscopic release (
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20680- Removal of implant; deep (e.g., buried wire, pin, screw, metal band, nail, rod or plate)- May be used if hardware removal is required during the same surgical session, often in trauma cases.
Codes 29846, 29847, and 20680 are commonly used together with 29848 when multiple wrist pathologies or prior hardware are addressed in one operative session. Code 64721 is an alternative to 29848 for carpal tunnel release, typically performed via an open approach.
National Reimbursement Benchmarks
Nationally, the mean rate for CPT code 29848 is highest with UnitedHealth Group at $915.61, followed by Cigna at $843.02. The average commercial mean rate, represented by BUCA, is $685.08, which is notably higher than the Medicare mean rate of $496.96. This highlights a substantial gap between commercial and Medicare reimbursement levels for this procedure.
Rate dispersion varies significantly across payers. Medicare shows the tightest range, with a difference of $45.00 between its 75th and 25th percentiles, indicating relatively consistent rates. In contrast, UnitedHealth Group exhibits the widest dispersion, with a $539.33 difference between its 75th and 25th percentiles, reflecting greater variability in commercial reimbursement. Cigna and Blue Cross Blue Shield also show wide ranges, while Aetna and BUCA are more moderate.
The table and chart below present a detailed breakdown of national mean rates and percentile values for each payer.
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