Summary & Overview
CPT 20816: Replantation of a Finger (Excluding Thumb)
CPT code 20816 represents the surgical replantation of a finger (excluding the thumb) after complete amputation. This complex, open reconstructive procedure is clinically significant because it aims to restore vascular continuity, tendon and nerve function, and digit viability — outcomes that directly affect patient function, rehabilitation needs, and long-term care costs. Nationally, the code is relevant to trauma systems, microsurgical teams, and payers managing high-cost, low-volume surgical episodes.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines clinical context for replantation, typical sites of service, and the types of utilization and coverage considerations commonly associated with major reconstructive procedures.
Readers will find benchmarks for use and payment context where available, a summary of policy themes affecting coverage decisions for complex reconstructive surgery, and clinical considerations that influence coding and site-of-service choices. Data not available in the input will be identified as such, and the report focuses on national-level implications for providers, health plans, and surgical programs involved in digit replantation care.
Billing Code Overview
CPT code 20816 describes the replantation of a digit (finger), excluding the thumb, after complete amputation. This is a major open surgical procedure that involves reattaching the amputated digit to restore form and function.
-
Service type: Major open invasive replantation surgery
-
Typical site of service: Hospital operating room or specialized surgical center equipped for microvascular and reconstructive hand surgery
Clinical & Coding Specifications
Clinical Context
A 32-year-old right-handed male presents to the emergency department after a factory accident with a complete amputation of the ring finger of his dominant hand at the level of the proximal phalanx. The amputated digit was recovered, wrapped in a sterile saline-moistened gauze, and transported on ice with the patient. The hand surgery team evaluates viability for replantation, confirming suitable vascular and nerve tissue for microsurgical repair. The patient is taken urgently to the operating room for 20816 (replantation of a digit, excluding the thumb). The surgical workflow includes general or regional anesthesia, debridement of wound edges, skeletal fixation (K-wire or internal fixation), microvascular arterial and venous anastomoses, nerve repair, tendon and soft tissue repair, and layered closure. Postoperative care includes hand immobilization, vascular monitoring, anticoagulation as indicated, pain control, and serial neurovascular checks. Rehabilitation with hand therapy begins once vascular stability is assured to maximize functional recovery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
62 | Two surgeons | Use when two surgeons work together as primary surgeons due to complexity (e.g., simultaneous revascularization and skeletal fixation). |
73 | Discontinued outpatient procedure prior to anesthesia | Use if the replantation is aborted prior to anesthesia induction in an outpatient setting. |
74 | Discontinued procedure after anesthesia (note: not listed in provided modifiers) | Data not available in the input. |
76 | Repeat procedure by same physician (note: not listed in provided modifiers) | Data not available in the input. |
77 | Repeat procedure by another physician (note: not listed in provided modifiers) | Data not available in the input. |
78 | Unplanned return to the operating room for a related procedure during the postoperative period | Use when the patient requires an urgent re-exploration for vascular compromise after the initial replantation. |
79 | Unrelated procedure or service by the same physician (note: not listed in provided modifiers) | Data not available in the input. |
80 | Assistant surgeon | Use when a qualified assistant surgeon participates in the procedure. |
81 | Minimum assistant surgeon | Use when a minimal assistant surgeon role is documented. |
82 | Assistant surgeon when a qualified resident is not available | Use when an assistant surgeon is required and a resident is not available. |
22 | Increased procedural services | Use when the replantation requires significantly greater effort, time, or complexity than typical (document rationale). |
23 | Unusual anesthesia | Use when general anesthesia cannot be used and an unusual anesthesia circumstance applies per payer policy. |
26 | Professional component | Use only if billing for a component service that has a professional component separate from the global surgical service. |
52 | Reduced services | Use when the surgical effort is intentionally reduced (e.g., attempted replantation converted to revision amputation). |
53 | Discontinued procedure | Use when the procedure is started but discontinued due to extenuating circumstances after anesthesia has begun. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207L00000X | Orthopaedic Surgery | Hand/upper extremity orthopaedic surgeons commonly perform digital replantation with microsurgical expertise. |
2080S0004X | Plastic Surgery | Plastic and reconstructive surgeons with microvascular training perform replantations and soft tissue reconstruction. |
363L00000X | Hand Surgery (special qualification) | Surgeons with fellowship training in hand surgery commonly manage complex replantation cases. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
S68.029A | Amputation of ring finger, unspecified left hand, initial encounter | Complete traumatic amputation requiring consideration of replantation when the amputated part is available. |
S68.019A | Amputation of index finger, unspecified right hand, initial encounter | Traumatic complete amputation of a non-thumb digit commonly considered for 20816. |
S68.031A | Amputation of middle finger, right hand, initial encounter | Another common site for digital replantation; guides laterality and encounter coding. |
S68.011A | Amputation of thumb, unspecified right hand, initial encounter (note: thumb replants are coded differently) | Mentioned to clarify that thumb replants are excluded from 20816 and coded separately. |
S68.099A | Amputation of unspecified finger(s), initial encounter | Used when the specific digit is not specified but replantation is under consideration. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
15734 | Muscle, myocutaneous or fasciocutaneous flap with microvascular anastomosis | Used when complex soft-tissue coverage with free flap is required in conjunction with or after replantation. |
25920 | Revision amputation of finger(s), metacarpophalangeal through distal phalanx, any number, primary operation | Performed when replantation is not possible or if a failed replantation requires revision. |
26440 | Open treatment of phalangeal shaft fracture, includes internal fixation (when performed) | May be performed to stabilize bony fixation as part of replantation. |
69990 | Microsurgical techniques, requiring use of an operating microscope (list separately in addition to code for primary procedure) | Billed in addition to 20816 when an operating microscope is used for microvascular anastomosis, if payer allows separate reporting. |
95831 | Muscle testing, hand, with electromyography (EMG) (note: often used in later evaluation) | Used in postoperative or rehabilitation phase to assess nerve recovery if clinically indicated. |