Hand Surgery CPT Reference

Hand Surgery CPT Codes and Reimbursement Rates

Hand surgery billing employs CPT codes that cover a wide range of procedures, from tendon and nerve repairs (26350-26390) to fracture fixation, joint reconstruction, and microsurgical techniques.

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Hand Surgery CPT Codes and Reimbursement Rates
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Overview

The Complexity of Hand Surgery billing

Hand surgery billing employs CPT codes that cover a wide range of procedures, from tendon and nerve repairs (26350-26390) to fracture fixation, joint reconstruction, and microsurgical techniques. The hand contains 27 bones and numerous soft tissue structures, making anatomic specificity in coding essential for accurate billing.

This reference covers the CPT codes most frequently used in hand surgery. Sections address tendon and nerve repair coding, fracture treatment by bone and type, joint procedure codes, soft tissue tumor excision, and the modifier rules for bilateral and multiple-digit procedures on the same hand.

The Complexity of Hand Surgery billing
Challenges

Common Hand Surgery billing Challenges We Solve

Every Hand Surgery billing team deals with payer delays, coding nuance, and collection leakage.

Authorization Gaps

We identify missing authorizations and documentation gaps before they create denials.

Coding Drift

Procedure coding and modifier use stay aligned with payer rules.

Aging AR

We actively work unresolved balances so claims do not sit untouched.

Patient Collections

Clear statements and follow-up plans reduce missed payments.

Services

Complete Hand Surgery billing Services

Support spans the full revenue cycle.

Eligibility verification and benefits checks

Specialty-specific coding review

Electronic claim submission within 24 hours

Denial management and appeals

Payment posting and reconciliation

Weekly reporting and revenue reviews

Coverage

Serving Hand Surgery billing Teams Nationwide

We support independent practices and growing provider organizations.

Independent physician groups

Multi-location practices

Private equity backed platforms

Hospital-owned outpatient groups

Guide

The Complete Guide to Hand Surgery billing

Hand Surgery CPT Code Framework

Hand surgery billing covers a wide range of procedures from common outpatient operations (carpal tunnel release, trigger finger release) to complex reconstructive microsurgery (tendon transfers, nerve repair, replantation). The CPT code structure for hand surgery is among the most granular in medicine because the hand contains 27 bones, 27 joints, and over 30 muscles, each with its own set of procedure codes. Accurate code selection requires precise anatomic documentation in the operative note because the difference between adjacent phalanx fracture codes can mean a $200 to $400 reimbursement difference.

The financial structure of a hand surgery practice typically combines high-volume, lower-reimbursement procedures (carpal tunnel, trigger finger, ganglion cyst excision) with lower-volume, higher-reimbursement cases (tendon repair, fracture fixation, microsurgery). The high-volume procedures generate consistent revenue and fill the surgical schedule, while the complex cases generate higher per-case revenue but require more operative time and post-operative management. Understanding the CPT codes for both categories is essential for accurate billing and revenue optimization.

Carpal Tunnel Release (64721)

Code 64721 (neuroplasty and/or transposition of the median nerve at the carpal tunnel, approximately $550 to $800) is the most commonly performed hand surgery procedure. This code covers both open and endoscopic carpal tunnel release. The reimbursement is the same regardless of technique because CPT does not differentiate between open and endoscopic approaches for this procedure. Some payers require prior authorization for carpal tunnel release, and the clinical documentation must demonstrate failed conservative treatment (night splinting, corticosteroid injection, activity modification) before surgical intervention is approved. Bilateral carpal tunnel release performed in the same session uses modifier 50, with the second side reimbursing at 50% to 100% of the unilateral rate depending on the payer.

Trigger Finger Release (26055)

Code 26055 (tendon sheath incision for trigger finger, approximately $400 to $600) covers the release of the A1 pulley for stenosing tenosynovitis. This is a high-volume procedure that can be performed in the office under local anesthesia or in the ambulatory surgical center. When performed in the office (POS 11), the reimbursement includes the facility component, making it more profitable per case than ASC or hospital-based procedures. Multiple trigger finger releases on different digits in the same session each receive their own 26055 code with appropriate modifiers (F1-F9 for specific digits). Document each digit treated separately in the operative note to support individual code assignment.

Tendon Repair Codes (26350-26373)

Flexor tendon repair codes are organized by zone and complexity. Code 26350 (repair or advancement of flexor tendon, not in zone 2, approximately $700 to $1,000) covers flexor tendon repair outside the critical zone 2 (between the A1 pulley and the FDS insertion). Code 26356 (repair or advancement of flexor tendon in zone 2 with free graft, approximately $1,000 to $1,400) covers the more complex zone 2 repair with tendon grafting. Code 26370 (repair or advancement of profundus tendon with intact superficialis, approximately $700 to $1,000) is the primary repair code for isolated FDP tendon injuries. Code 26373 (repair or advancement, profundus tendon, with free graft, approximately $900 to $1,300) covers profundus repair with tendon graft. Extensor tendon repair codes (26410-26418) reimburse at slightly lower rates because the surgical complexity is generally less than flexor tendon repair.

Fracture Treatment Codes (26600-26785)

Hand fracture codes are organized by bone, fracture location, and treatment method. Metacarpal fracture closed treatment (26600 without manipulation, approximately $250 to $400; 26605 with manipulation, approximately $400 to $600) covers the most common hand fractures. Metacarpal fracture open treatment (26615, approximately $700 to $1,000) covers surgical fixation. Phalangeal fracture codes follow a similar structure: 26720 (closed treatment without manipulation, approximately $200 to $350), 26725 (closed with manipulation, approximately $350 to $550), 26735 (open treatment, approximately $650 to $950). Distal phalanx fracture (26750-26756) reimburses at lower rates because these fractures are typically simpler. Bennett fracture (first metacarpal base fracture-dislocation) uses code 26665 (open treatment, approximately $750 to $1,100) and is one of the higher-reimbursing hand fracture codes.

Microsurgery and Complex Reconstruction

Microsurgical procedures represent the highest-reimbursing hand surgery codes. Digital nerve repair (64831 for single nerve, approximately $800 to $1,100; 64832 for additional nerve, approximately $400 to $600 add-on) covers nerve repair under the operating microscope. Replantation of digits uses codes 20816 (finger, proximal to nail bed, approximately $2,500 to $3,500) and 20822 (thumb, approximately $3,000 to $4,000). Free flap transfer (15757 for free tissue transfer with microvascular anastomosis, approximately $3,000 to $4,500) covers soft tissue coverage of complex hand wounds. These procedures carry 90-day global periods and represent significant revenue per case, but they also require extended operative times (4 to 12 hours for replantation) and intensive post-operative management.

Common Questions

Frequently Asked Questions About Hand Surgery billing

Answers to the questions practice owners ask most often.

No. CPT code 64721 covers both open and endoscopic carpal tunnel release at the same reimbursement rate. The AMA has maintained a single code for this procedure because the clinical outcome and surgical effort are considered equivalent regardless of approach. Some payers previously required documentation of the technique used, but the code and reimbursement are the same. If the procedure involves additional work beyond standard release (neurolysis of the median nerve, internal neurolysis, epineurotomy), code 64721 is still the primary code, though modifier 22 may be appropriate for significantly increased complexity.

Bill code 26055 for each digit released. Use HCPCS finger modifiers to identify each digit: F1 (left 2nd digit), F2 (left 3rd digit), F3 (left 4th digit), F4 (left 5th digit), F5 (right thumb), F6 (right 2nd digit), F7 (right 3rd digit), F8 (right 4th digit), F9 (right 5th digit), FA (left thumb). The first release pays at 100% and additional releases may be subject to multiple procedure reduction (50% of fee). Document each digit separately in the operative note with individual incision, pulley release, and tendon excursion confirmation.

Closed treatment codes (26600, 26605, 26720, 26725) cover fracture management without surgical incision: splinting, casting, or closed reduction with manipulation. Open treatment codes (26615, 26735) cover surgical fracture fixation with incision, direct fracture visualization, and internal fixation (pins, plates, screws). Percutaneous pinning falls under open treatment codes because it involves pin insertion through the skin into the bone. The reimbursement difference is substantial: closed metacarpal fracture without manipulation (26600, ~$250) versus open metacarpal fracture fixation (26615, ~$700). Always code to the treatment actually performed.

Bill each procedure with its appropriate CPT code. For example, flexor tendon repair (26350) plus digital nerve repair (64831) plus additional digital nerve repair (64832) for a finger with both tendon and nerve lacerations. Apply modifier 51 (multiple procedures) to the lesser-valued codes. The highest-valued procedure pays at 100%, and additional procedures receive the multiple procedure reduction. NCCI edits generally allow these code combinations because tendon and nerve repair are distinct anatomic structures requiring separate surgical work. Document each repair separately in the operative note.

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