Summary & Overview
CPT 21932: Subfascial Soft Tissue Tumor Excision, Back or Flank
CPT code 21932 denotes surgical excision of subfascial soft tissue tumors under 5 cm on the back or flank. This code captures a focused oncologic or benign tumor removal performed by a physician and is relevant for surgical, billing, and utilization management stakeholders nationwide. Clear coding for these procedures affects claims processing, reimbursement categorization, and clinical documentation standards.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for 21932, typical sites of service, and the scope of procedures it covers. The publication also summarizes payer coverage patterns and common billing modifiers (listed separately), operational benchmarks such as typical settings and procedure complexity, and any notable policy updates that influence prior authorization and medical necessity determinations.
This national-level summary is intended to help coding professionals, surgical teams, and revenue cycle staff understand how CPT code 21932 is used in practice, what documentation elements support the code selection, and where organizations commonly focus audits and utilization reviews. Data not available in the input is identified where applicable.
Billing Code Overview
CPT code 21932 describes the surgical excision of a subfascial soft tissue tumor less than 5 cm located on the back or flank. This procedure involves removal of a small soft tissue mass situated beneath the skin and fascia, typically performed by a physician with surgical skills in soft tissue oncology or general surgical specialties.
-
Service type: Subfascial soft tissue tumor excision
-
Typical site of service: Hospital operating room or ambulatory surgery center, with potential performance in a procedure suite depending on facility capabilities
Clinical & Coding Specifications
Clinical Context
A 52-year-old patient presents to an outpatient surgical clinic with a progressively enlarging, palpable soft tissue mass on the posterior thorax (paraspinal/back region). The lesion is subfascial on examination and approximately 3.5 cm in greatest dimension on imaging (ultrasound or MRI). The provider documents a focused history and physical, obtains informed consent, and schedules a planned excision under monitored anesthesia care in an ambulatory surgery center. On the day of surgery the patient undergoes preoperative time-out, site marking, and standard sterile prep. The surgeon makes a skin incision, dissects through subcutaneous tissue to the fascial plane, identifies and excises the subfascial tumor intact with hemostasis, closes the wound in layers, and provides postoperative instructions. Specimen is sent to pathology for histologic confirmation. Typical documentation includes procedure note with tumor size and location, anesthesia record, pathology requisition, and postoperative instructions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
59 | Distinct procedural service | Use when a separate, distinct procedure is performed at the same session and not typically bundled with the primary code (ensure supporting documentation). |
22 |