54120

Amputation of penis; partial

CPT code 54120 describes the surgical procedure for the partial amputation of the penis, an intervention most frequently indicated for the definitive management of localized penile malignancies. Squamous cell carcinoma constitutes the vast majority of penile cancers, and when the lesion is isolated to the distal aspect of the organ, such as the glans penis or the distal prepuce and shaft, a partial penectomy offers a balance between oncological control and functional preservation. The primary goal of this partial amputation is to completely excise the neoplastic growth with negative surgical margins, typically targeting an adequate tumor-free margin based on intraoperative frozen sections, while preserving sufficient penile length to allow the patient to direct their urinary stream while standing and potentially maintain sexual function. Beyond oncologic indications, partial amputation of the penis may also be medically necessary in cases of severe and irreversible ischemic tissue necrosis resulting from advanced microvascular disease, devastating infections such as Fournier's gangrene that have caused localized distal death of tissue, or severe traumatic avulsion or crushing injuries where reconstructive efforts are surgically impossible or have previously failed. The operative procedure requires meticulous dissection. Following the administration of general or regional anesthesia, the surgeon typically applies a tourniquet at the base of the penis to maintain a bloodless surgical field. A circumferential skin incision is meticulously made proximal to the targeted diseased tissue. The surgeon identifies, ligates, and divides the deep and superficial dorsal venous complexes and associated neurovascular structures. The corpora cavernosa, which are the primary erectile bodies, are sharply transected, and their dense fibrous outer layer, the tunica albuginea, is securely closed using heavy absorbable sutures to prevent postoperative hemorrhage and preserve the integrity of the remaining erectile tissue. The corpus spongiosum, which houses the urethra, is preserved slightly longer than the corpora cavernosa. The distal urethra is then spatulated, meaning it is slit longitudinally, and meticulously sutured to the adjacent penile skin to fashion a neo-meatus. This crucial step prevents urethral stricture and maintains patency for normal micturition. A urethral catheter is temporarily left in place to divert urine away from the healing surgical margins. Postoperative care involves careful monitoring for hematoma formation, infection, and ensuring proper psychological support due to the profound impact of the surgery on body image and sexual function.

Clinical Indications

  • Biopsy-proven distal penile malignancies such as squamous cell carcinoma.
  • Carcinoma in situ of the penis refractory to conservative or topical therapies.
  • Severe ischemic necrosis or gangrene affecting the distal penis.
  • Catastrophic penile trauma or crush injuries where tissue salvage and reconstruction are impossible.
  • Intractable distal penile infections unresponsive to broad-spectrum antibiotics and limited debridement.

Procedure Steps

  1. Administer general or regional anesthesia and place the patient in the supine position.
  2. Prepare and drape the genital region following standard sterile protocols.
  3. Apply a penile tourniquet at the base of the penis to minimize intraoperative blood loss.
  4. Make a circumferential skin incision proximal to the visible tumor margin or necrotic tissue ensuring adequate oncologic margins.
  5. Isolate, clamp, divide, and securely ligate the superficial and deep dorsal veins, dorsal arteries, and dorsal nerves.
  6. Dissect and mobilize the corpus spongiosum and urethra, transecting the urethra slightly distal to the planned transection of the corpora cavernosa.
  7. Sharply transect the bilateral corpora cavernosa.
  8. Close the tunica albuginea of the corpora cavernosa using running or interrupted heavy absorbable sutures to ensure hemostasis.
  9. Spatulate the preserved distal urethra ventrally and suture the urethral mucosa to the penile skin to create a neo-meatus.
  10. Remove the tourniquet, verify meticulous hemostasis, and close the remaining penile skin edges.
  11. Insert an indwelling urethral Foley catheter and apply a secure compressive dressing.

Coding Guidelines

  • Report 54120 strictly for a partial amputation where a functional portion of the penile shaft is preserved.
  • Do not report 54120 if the entire penis is amputated down to the pubic bone; instead, use CPT code 54125 for complete amputation.
  • If the procedure includes a radical amputation with bilateral pelvic lymphadenectomy, refer to CPT codes 54130 or 54135.
  • The creation of the neo-meatus and urethral spatulation are inclusive components of 54120 and must not be coded or billed separately.
  • Routine postoperative care is included in the global surgical package, which typically encompasses a 90-day global period.
  • Do not report circumcision codes (54150-54161) in conjunction with 54120 for the excised segment.

Associated ICD-10 Codes