Summary & Overview
CPT 23066: Excisional Biopsy of Deep Soft Tissue, Shoulder
CPT code 23066 denotes an excisional biopsy of deep soft tissue in the shoulder performed to obtain tissue for pathologic diagnosis of benign, malignant, or precancerous processes. This surgical biopsy code is used when a provider removes a deep lesion—often a palpable lump beneath the skin—for histologic examination. Nationally, accurate coding for deep soft-tissue biopsies affects clinical documentation, facility and professional billing, and downstream care planning when pathology results drive oncologic or orthopedic interventions.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an operational overview of the code, typical sites of service, common clinical indications, and context about billing implications. The publication highlights benchmarks for utilization and reimbursement trends where available, recent policy or coverage clarifications relevant to surgical biopsy coding, and clinical considerations that influence code selection and setting of care.
This summary is intended for billing professionals, clinicians, and policy analysts seeking concise information on the clinical intent and administrative use of CPT code 23066. Data not available in the input is noted and omitted from sections that require specific payer-level rates, associated taxonomies, or diagnosis mappings.
Billing Code Overview
CPT code 23066 describes an excisional biopsy of deep soft tissue of the shoulder, performed to remove a palpable or nonpalpable lesion for pathologic evaluation to determine whether cells are benign, malignant, or precancerous. The procedure involves surgical removal of deep soft tissue, typically including dissection down to and around the lesion to obtain an adequate specimen for histologic analysis.
Service type: Surgical biopsy / excision of deep soft tissue
Typical site of service: Hospital outpatient department, ambulatory surgery center, or office-based surgical suite
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient presents to an orthopedic clinic with a palpable, enlarging deep soft-tissue mass over the posterior shoulder that has been present for several months and is increasingly symptomatic with pain and limited shoulder range of motion. Physical examination and prior imaging (ultrasound and MRI) demonstrate a well-circumscribed 3.5 cm deep subfascial mass suspicious for a soft-tissue neoplasm. After multidisciplinary discussion, the orthopedic surgeon schedules a surgical excisional biopsy of the deep soft tissue of the shoulder to obtain tissue for definitive histopathology and immunohistochemical analysis.
The clinical workflow includes preoperative evaluation and informed consent, review of prior imaging to plan the incision and approach, intraoperative sterile preparation in an ambulatory surgical center or hospital operating room (typical site of service), surgical excision of the lesion with appropriate margins when indicated, specimen labeling and submission to pathology with relevant clinical history, and postoperative wound care with instructions and follow-up for pathology results. Typical sites of service are the ambulatory surgery center or hospital outpatient operating room. The procedure is billed using 23066 for excisional biopsy of deep soft tissue of the shoulder when the primary purpose is diagnostic tissue removal rather than definitive wide oncologic resection.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
50 |