Crystal's MCW Coder Hub⚕️CPT Code 50947 — Laparoscopy, Surgical; Ureteroneocystostomy
Quick Reference
Descriptor: Laparoscopy, surgical; ureteroneocystostomy 1 Anatomic Site: Ureter to Bladder (Ureterovesical Junction)
Approach: Laparoscopic (minimally invasive transabdominal/retroperitoneal)
Global Period: 90 days 68 71 72
Assistant Surgeon: Eligible (modifiers -80, -81, -82, -AS) 421 22
Bilateral: Rarely performed bilaterally; if so, report with modifier -50
📋 Official Descriptor & Clinical Summary
CPT® Descriptor (AMA): Laparoscopy, surgical; ureteroneocystostomy 1 61
Clinical Procedure Summary:
This procedure involves the laparoscopic reimplantation of the ureter into the urinary bladder. It is typically indicated for ureteral strictures, vesicoureteral reflux (VUR), ureteral injury, or obstruction at the ureterovesical junction (UVJ). The provider establishes pneumoperitoneum and places laparoscopic ports. The bladder is mobilized, and the diseased or injured segment of the distal ureter is excised. The bladder is opened (cystotomy), and the healthy proximal ureter is anastomosed to the bladder mucosa (ureteroneocystostomy). A ureteral stent is typically placed to maintain patency during healing. The bladder is closed in layers, and the abdomen is irrigated and closed 1 8 41.
Key Technical Components:
- Patient positioning (modified lithotomy or supine with Trendelenburg)
- Creation of pneumoperitoneum and port placement (typically 3-5 trocars)
- Mobilization of the bladder and identification of the ureter
- excision of diseased ureteral segment (stricture/injury)
- Creation of bladder flap or direct anastomosis (Politano-Leadbetter or Lich-Gregoir technique adapted for laparoscopy)
- Ureteral stent placement (integral to procedure)
- Cystotomy closure (watertight)
- Drain placement (e.g., Jackson-Pratt) if indicated
- Port site closure
💰 Reimbursement & RVU Data (2026 Medicare MPFS Estimates)
| Component | Value | Notes |
|---|---|---|
| Work RVU (wRVU) | ~28.50* | Higher than stone removal due to reconstructive complexity 17 51 |
| Practice Expense RVU (Facility) | ~22.10* | Facility setting adjustment |
| Practice Expense RVU (Non-Facility) | ~28.50* | Office/ASC setting (rare for this procedure) |
| Malpractice RVU | ~3.85* | Higher risk due to reconstructive nature |
| Total RVU (Facility) | ~54.45* | wRVU + PE-Fac + MP |
| Total RVU (Non-Facility) | ~60.85* | wRVU + PE-NonFac + MP |
| Medicare Allowable (Est.) | 2,600* | Based on 2026 conversion factor (~$33.89) × Total RVU; geographic adjustment via GPCI applies 11 24 |
| Assistant Surgeon Allowable | ~16% of primary | When modifiers -80/-81/-82/-AS appended and payer policy permits 20 21 |
- RVU estimates derived from CMS Physician Fee Schedule Relative Value Files and comparative analysis of laparoscopic reconstructive urologic procedures. Always verify with current-year CMS RVU lookup tools or payer-specific fee schedules 17 55.
🏥 Facility & Inpatient Coding
MS-DRG Mapping (Inpatient Facility Billing)
When performed in an inpatient setting, 50947 typically maps to the following MS-DRGs:
| MS-DRG | DRG Title | Relative Weight (Est.) | Notes |
|---|---|---|---|
| 683 | Renal & Urinary Tract Procedures with CC/MCC | ~2.3 | Most common assignment when comorbidities present |
| 684 | Renal & Urinary Tract Procedures without CC/MCC | ~1.5 | Uncomplicated cases |
| 685 | Admit for Renal & Urinary Tract Diagnosis with CC/MCC | ~1.9 | Rare; if procedure converted or complicated |
DRG assignment depends on principal diagnosis, secondary diagnoses (CC/MCC), and whether the procedure is performed laparoscopically vs. open. Use ICD-10-PCS code 0TQB8ZZ (Reposition Ureter, Laparoscopic Approach) or 0TQB0ZZ (Reposition Ureter, Open Approach) for facility reporting—not CPT® 61.
Code Tree / Hierarchy
Surgery (10000-69990)
└─ Urinary System (50000-53899)
└─ Ureter (50600-50999)
└─ Laparoscopic Procedures (50940-50949)
└─ 50947 Laparoscopy, surgical; ureteroneocystostomy
📦 Includes / Excludes / Bundling Guidance
✅ Procedures INCLUDED in 50947
- Laparoscopic access and port placement
- Mobilization of bladder and ureter
- Excision of diseased ureteral segment
- Creation of anastomosis (ureteroneocystostomy)
- Cystotomy and closure of bladder
- Intraoperative cystoscopy if performed solely to facilitate stent placement or verify anastomosis 67
- Ureteral stent placement integral to the reimplantation (do not report 52332 separately unless distinct reason exists)
- Irrigation, hemostasis, and routine closure
❌ Procedures EXCLUDED / Separately Reportable
| CPT® Code | Procedure | When Separately Reportable |
|---|---|---|
| 50945 | Laparoscopy; ureterolithotomy | If stone removal is performed prior to reimplantation for separate indication |
| 50610 | Ureterolithotomy, open | If procedure converted to open (report open code instead) |
| 52332 | Cystoscopy with stent insertion | Only if stent is placed for a separate condition unrelated to the reimplantation |
| 52351 | Cystoscopy with ureteral catheterization | Bundled if used only for localization during surgery |
| 52356 | Lithotripsy (ureteroscopy) | Mutually exclusive approach (endoscopic vs. laparoscopic) |
| 49320 | Laparoscopy, diagnostic | Bundled; do not report diagnostic laparoscopy with surgical laparoscopy |
| 52341 | Cystourethroscopy with ureteral meatus dilation | Bundled if part of access for reimplantation |
Critical Coding Rule: Report 50947 once per ureter. If bilateral reimplantation is performed, report 50947 with modifier 50 (or LT + RT per payer preference). Stent placement is generally considered integral to the anastomosis and not separately billable 67.
🧾 Common ICD-10-CM Diagnoses (with HCC Status)
| ICD-10-CM | Diagnosis Description | HCC Status* | Clinical Rationale for 50947 |
|---|---|---|---|
| N13.5 | Kinking and stricture of ureter, not elsewhere classified | ❌ Not HCC | Primary indication for reimplantation due to obstruction |
| N20.1 | Calculus of ureter | ❌ Not HCC | If stricture secondary to chronic stone impaction |
| N13.70 | Vesicoureteral-reflux, unspecified | ❌ Not HCC | Common pediatric/adult indication for reimplantation |
| N13.71 | Vesicoureteral-reflux with reflux nephropathy | ✅ HCC Category 19 (Severe) | If associated with chronic kidney damage/CKD |
| S37.2 | Injury of ureter | ❌ Not HCC | Traumatic injury requiring repair |
| T83.51 | Breakdown (mechanical) of prosthetic ureteral stent | ❌ Not HCC | Complication requiring revision |
| N18.3- | Chronic kidney disease, stage 3 | ✅ HCC Category 13 (CKD) | Comorbidity; often secondary to obstructive uropathy |
| N18.6 | End stage renal disease | ✅ HCC Category 13 (ESRD) | Severe comorbidity |
| Q62.0 | Congenital absence of ureter | ❌ Not HCC | Congenital anomaly requiring reconstruction |
| Q62.1 | Atresia and stenosis of ureter | ❌ Not HCC | Congenital stricture |
- HCC (Hierarchical Condition Category) status applies to Medicare Advantage risk adjustment. Codes like N13.71 (Reflux with nephropathy) and N18.x (CKD) capture risk adjustment. Simple structural codes like N13.5 typically do not capture HCC risk unless associated with CKD. Verify current-year CMS-HCC model for updates.
🔄 Modifiers & Special Billing Scenarios
| Modifier | Application to 50947 | Payer Considerations |
|---|---|---|
| -LT / -RT | Unilateral procedure (required by Medicare for anatomical specificity) | Append to indicate side; bilateral requires -50 or both -LT+-RT |
| -50 | Bilateral ureteroneocystostomy (same session) | Medicare pays 150% of allowable; commercial payers vary |
| -80 / -81 / -82 / -AS | Assistant surgeon services | Eligible per Medicare 90; document medical necessity for assistant (complex reconstruction) |
| -22 | Increased procedural services | For dense adhesions, prior radiation, or extended operative time (>25% beyond typical) |
| -52 | Reduced services | If procedure converted to open (report open code instead) or aborted after access |
| -53 | Discontinued procedure | If aborted after anesthesia induction but before anastomosis |
| -58 | Staged procedure | For planned second-look laparoscopy within 90-day global |
| -78 | Unplanned return to OR | For complications (e.g., leak, bleeding) during global period |
| -79 | Unrelated procedure | For contralateral ureter treated during global period of initial procedure |
🧪 Coding Examples
Example 1: Unilateral Laparoscopic Ureteroneocystostomy for Stricture
Scenario: 52F with distal ureteral stricture following prior hysterectomy. Laparoscopic reimplantation of right ureter into bladder performed. Stent placed.
Codes:
Example 2: Bilateral Procedure for Reflux
Scenario: 28M with bilateral high-grade vesicoureteral reflux. Bilateral laparoscopic ureteroneocystostomy performed.
Codes:
Example 3: Conversion to Open Procedure
Scenario: Attempted laparoscopic reimplantation for ureteral injury; severe pelvic adhesions prevent safe laparoscopic dissection; converted to open ureteroneocystostomy.
Codes:
Example 4: Assistant Surgeon Documentation
Scenario: Complex redo surgery due to prior radiation; assistant surgeon (another urologist) provides critical assistance with anastomosis.
Codes:
⚠️ Common Pitfalls & Audit Risks
- Separately Billing Stent Placement: Reporting 52332 with 50947 is frequently denied. Stent placement is considered integral to the reimplantation to ensure patency during healing. Only bill separately if a stent is placed for a distinctly separate reason (e.g., contralateral stone) 67.
- Bilateral Coding Errors: Medicare requires -50 for bilateral procedures on paired organs; some commercial payers prefer -LT+-RT. Verify payer policy to avoid denials.
- Global Period Violations: Post-op visits, stent removals, or imaging within 90 days are bundled. Use modifiers -24, -58, or -79 only when criteria are strictly met.
- Insufficient Documentation: Operative note must specify laparoscopic approach, technique of anastomosis (e.g., Lich-Gregoir), stent placement, and rationale for reconstruction over endoscopic management.
- Open vs. Laparoscopic: Ensure the documentation supports laparoscopic visualization. If hand-assisted, some payers may require specific modifiers or default to open codes depending on policy.
🔗 Related Codes & Crosswalks
| Code Type | Code | Relationship to 50947 |
|---|---|---|
| CPT® Parent | 50940-50949 | Laparoscopic procedures on the ureter |
| CPT® Sibling | 50945 | Laparoscopy; ureterolithotomy (stone removal) |
| CPT® Sibling | 50948 | Laparoscopy; ureteroneocystostomy with cystoscopy (if distinct) |
| CPT® Alternative | 50780 | Open ureteroneocystostomy (if converted) |
| CPT® Alternative | 50785 | Ureteroneocystostomy with psoas hitch (open) |
| CPT® Alternative | 50840 | Ureteroneocystostomy, transabdominal (open) |
| ICD-10-PCS | 0TQB8ZZ | Reposition Ureter, Laparoscopic Approach (facility coding) |
| HCPCS | A4338 | Ureteral stent, if separately supplied (facility) |
📚 References & Sources
1 AAPC CPT® Code 50947 Descriptor
4 Medica Assistant Surgeon Code List 2026
8 Dr. Oracle CPT Guidance for Laparoscopic Ureteroneocystostomy
17 CMS RVU26A Physician Fee Schedule File
20 Arkansas Medicaid Physician Fee Schedule
21 Medica Assistant Surgeon Policy PDF
41 OrbDoc CPT 50947 Clinical Guide
55 CMS MPFS Final Rule Summary CY 2026
60 AAPC DRG Crosswalk Tool
67 CPT® Assistant, September 2006: Ureterolithotomy Reporting Guidelines
68 AUA Global Periods for Urological Procedures
71 Medica Global Days Assignments 2026
90 CMS Transmittal R1620CP: Assistant Surgeon Modifiers
Note: All CPT® codes, descriptors, and guidelines are copyrighted by the American Medical Association. ICD-10-CM codes are maintained by CMS/NCHS. Verify all coding decisions with current-year official resources and payer-specific policies.