Summary & Overview
CPT 55100: Incision and Drainage of Scrotal Abscess
CPT code 55100 covers incision and drainage of a scrotal abscess, a focused surgical procedure to evacuate pus from the scrotum to treat an acute infection. This code is clinically important because timely drainage is the primary treatment for scrotal abscesses, influences site-of-care decisions (ambulatory surgical center, hospital outpatient, or emergency department), and has implications for coding, billing, and quality measurement across national payers. Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise overview of clinical context for CPT code 55100, common settings where the service is delivered, and the coding definition. The publication summarizes national benchmarks where available, highlights billing nuances and common modifiers in use, and outlines policy considerations that affect coverage and reimbursement for acute surgical procedures. It also provides operational considerations for claims processing and typical documentation elements that support medical necessity. Data not available in the input is explicitly noted where applicable.
Billing Code Overview
CPT code 55100 describes an incision and drainage of a scrotal abscess — the surgical drainage of a localized pocket of pus within the scrotum, the pouch that contains the testes. The procedure is performed to treat an acute infectious collection and relieve pain, reduce infection burden, and enable wound care.
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Service type: Surgical incision and drainage for acute scrotal infection
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Typical site of service: Ambulatory surgical center, hospital outpatient department, or emergency department depending on clinical severity and patient stability
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult male presenting to the emergency department or urology clinic with acute scrotal pain, erythema, swelling, and fluctuance suggestive of an infected scrotal abscess or infected hydrocele. Vital signs may show fever and tachycardia. Physical exam identifies a focal tender, fluctuant collection in the scrotal wall or paratesticular space. Initial workup often includes scrotal ultrasound to confirm a fluid collection separate from the testis and to rule out testicular torsion; laboratory studies include a complete blood count and inflammatory markers. The clinical workflow for 55100 (incision and drainage of scrotal abscess) typically involves informed consent, local or regional anesthesia (or general anesthesia if required), aseptic preparation, an incision over the area of fluctuance, blunt dissection or probing to evacuate purulent material, specimen collection for Gram stain and culture, irrigation and possible placement of a drain, hemostasis, and wound packing or delayed primary closure depending on contamination. Post-procedure care includes antibiotic therapy guided by culture results, wound care instructions, and short-term follow-up for dressing changes and reassessment of drainage and healing. Hospital admission may be required for systemic infection, significant comorbidity, or if the patient requires IV antibiotics and close monitoring. Typical sites of service are the emergency department, ambulatory surgical center, or inpatient operating room depending on acuity and anesthesia needs.
Coding Specifications
| Modifier | Description | When to Use |
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