51525

CPT 51525: Cystourethroplasty with Umbilical Appendicovesicostomy

Primary Procedure

• 51252 - Cystourethroplasty; with umbilical appendicovesicostomy (Mitrofanoff): The provider creates a catheterizable channel between the bladder and the skin (usually at the umbilicus) using the appendix. This is typically performed for patients with neurogenic bladder or urethral abnormalities who cannot void normally.

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

1. N31.9 - Neuromuscular dysfunction of bladder, unspecified: Common use case for neurogenic bladder requiring a Mitrofanoff channel.
2. Q64.11 - Exstrophy of urinary bladder: Congenital anomaly often requiring complex bladder reconstruction.
3. Q64.2 - Congenital posterior urethral valves: Obstruction requiring alternative drainage pathways.
4. N32.89 - Other specified disorders of bladder: Includes bladder contracture or permanent urethral strictures.
5. G82.20 - Paraplegia, unspecified: Underlying cause for neurogenic bladder dysfunction.
6. Q05.9 - Spina bifida, unspecified: High-risk condition for bladder dysfunction often necessitating 51252.

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CPT/HCPCS Code(s)

• 51252 - Cystourethroplasty; with umbilical appendicovesicostomy: Comprehensive title. This includes the mobilization of the appendix and the creation of the stoma.

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Global Period

• 090: This is a major surgical procedure. The global package includes the day before surgery, the day of surgery, and 90 days of routine postoperative care.

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HCC Information

• HCC Impact: N/A. Procedure codes do not carry HCC weights; however, the underlying chronic conditions (e.g., Spina Bifida, Paraplegia) significantly impact HCC risk adjustment (e.g., HCC 70/71/72).

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Exclusives/Inclusives (Bundling & NCCI Edits)

Inclusives (Commonly Bundled - Do Not Bill Separately)

• 52000: Cystourethroscopy (diagnostic) is considered integral to the surgical approach.
• 51701/51702: Insertion of temporary bladder catheter.
• 44950: Appendectomy (when performed as part of the Mitrofanoff procedure, as the appendix is being repurposed).
• Simple Exploration: Exploratory laparotomy is included in the surgical approach for the primary procedure.

Mutually Exclusives

• 51250: Cystourethroplasty without the Mitrofanoff component.
• 44120: Enterectomy (unless a separate portion of bowel is used for a different purpose, such as a bladder augmentation, which would require a different code like 51960).

Assistant Payable

• Yes: Assistant at surgery (Modifier -80 or -82) is generally permitted given the complexity of the reconstructive work.

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Clinical Context & Use Cases

• Mitrofanoff Procedure: Used when the native urethra is non-functional or inaccessible. The appendix is used as a conduit, with one end tunneled into the bladder (creating a one-way valve) and the other end brought to the umbilicus for clean intermittent catheterization (CIC).
• Documentation Tip: Ensure the operative report details the “tunneling” technique (anti-reflux mechanism) and the viability of the appendiceal blood supply to support 51252.