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51575

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CPT 51575: Cystectomy, complete; with bilateral pelvic lymphadenectomy

Primary Procedure

  • 51575 - Cystectomy, complete; with bilateral pelvic lymphadenectomy, including external iliac, hypogastric, and obturator nodes: Detailed Explanation: This is a massive open or robotic-assisted open surgical procedure typically performed for muscle-invasive bladder cancer. The surgeon completely removes the urinary bladder (complete cystectomy). In addition, the surgeon must bilaterally remove the pelvic lymph node packets, specifically mapping to the external iliac, hypogastric (internal iliac), and obturator node chains.

Note

This specific code descriptor does NOT include the creation of a urinary diversion.

ICD-10-CM Diagnosis Code(s) (Top 6 Options)

  1. C67.9 - Malignant neoplasm of bladder, unspecified: The most common overarching diagnosis justifying a radical cystectomy.
  2. C67.2 - Malignant neoplasm of lateral wall of bladder: Highly specific cancer location often necessitating complete removal if muscle-invasive.
  3. C67.5 - Malignant neoplasm of bladder neck: Tumors here frequently compromise the urethra and sphincter, requiring complete cystectomy.
  4. D09.0 - Carcinoma in situ of bladder: Used when high-grade, superficial cancer is refractory to intravesical therapies (like BCG) and a “salvage” cystectomy is performed.
  5. N32.89 - Other specified disorders of bladder: Used for non-malignant, end-stage bladder conditions (e.g., severe radiation cystitis or intractable hemorrhagic cystitis) where nodes might be taken for staging/suspicion, though less common than cancer diagnoses.
  6. C67.9 - Secondary malignant neoplasm of bladder: Used when cancer from an adjacent organ (like the prostate, cervix, or rectum) has invaded the bladder.

CPT/HCPCS Code(s) & Alternatives

The cystectomy codes are progressive and highly dependent on two factors: 1) Was a lymph node dissection performed? and 2) What type of urinary diversion was created?

  • 51575 - Cystectomy, complete; with bilateral pelvic lymphadenectomy. (Base code for this note).
  • Alternative (No Nodes) - 51570: Cystectomy, complete; (separate procedure). Use if the bladder is removed but the pelvic lymph nodes are left intact.
  • Alternative (With Ureterosigmoidostomy) - 51585: Cystectomy, complete, with ureterosigmoidostomy or ureterocutaneous transplantations; with bilateral pelvic lymphadenectomy.
  • Alternative (With Continent Ileal Pouch) - 51595: Cystectomy, complete, with continent ileal reservoir (Kock pouch) with bilateral pelvic lymphadenectomy.
  • Alternative (Pelvic Exenteration) - 51597: Pelvic exenteration, complete, for roentgenographic or operative extent of malignant disease, with removal of adnexa, corpus uteri, ovaries, parametria, wall of vagina, etc.

Global Period

  • 090: Major surgical procedure. The global package encompasses the day before surgery, the day of surgery, and 90 days of extensive postoperative care.

Exclusives/Inclusives (Bundling & NCCI Edits)

Inclusives (Commonly Bundled - Do Not Bill Separately)

  • 38562: Pelvic lymphadenectomy, including external iliac, hypogastric, and obturator nodes. (This is explicitly spelled out in the description of 51575 and is strictly bundled).
  • 51040 / 51550: Cystostomy or partial cystectomy. You cannot bill for opening or removing a piece of the bladder when removing the entire organ.
  • 49000: Exploratory laparotomy. The initial exploration of the abdomen to assess tumor resectability is bundled into the major excision.

Mutually Exclusives

  • Combination Cystectomy/Diversion Codes (51580 - 51596): You cannot bill 51575 alongside codes that already include complete cystectomy with a specified diversion.
  • Prostatectomy (55840 series): In men, a radical cystectomy often includes a radical prostatectomy (cystoprostatectomy). NCCI heavily regulates billing both. Depending on the payer, the prostatectomy is often considered bundled into the complete cystectomy or requires modifier -59/-XU if anatomically distinct pathology is proven.

Assistant Payable

  • Yes: Assistant at surgery (Modifier -80, -82, or -AS) is almost universally required and payable due to the extreme complexity, length, and multi-quadrant nature of the surgery. Co-surgery (Modifier -62) may also be applicable if two surgeons (e.g., Urologic Oncologist and General Surgeon) divide the resection and the diversion.

Detailed Clinical Context & Documentation Tips

  • The “Urinary Diversion” Trap: CPT 51575 only covers the removal of the bladder and nodes. Since the patient needs a way to store and void urine, a diversion (like an ileal conduit - CPT 50820) is usually performed during the same operative session. You must code the urinary diversion separately (e.g., 51575 + 50820) unless the specific diversion matches one of the combination codes (like 51585 or 51595). Always check NCCI edits when pairing 51575 with diversion codes.
  • Lymph Node Anatomy Requirement: To bill 51575 rather than 51570, the operative note must explicitly detail the dissection of the external iliac, hypogastric (internal iliac), and obturator lymph nodes on both the left and right sides.
  • Modifier 52 (Reduced Services): If the surgeon performs the cystectomy and attempts the node dissection but cannot complete all three node packets bilaterally (e.g., due to severe scar tissue, radiation fibrosis, or massive tumor invasion wrapping around the iliac vessels), you should append Modifier -52 to 51575 to indicate the lymphadenectomy was lesser than the full CPT description requires.
  • Gender Specifics: Ensure documentation captures whether adjacent organs were removed. If a woman undergoes an anterior exenteration (bladder, urethra, uterus, ovaries, anterior vagina), consider CPT 51597 instead of 51575.

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