Crystal's MCW Coder HubNephrectomy Procedures Family MOC
What This MOC Covers
This index covers the complete CPT nephrectomy procedure family — all open, laparoscopic, partial, radical, and donor nephrectomy codes. Use this page to navigate individual procedure notes, select the correct code within the family, understand the key clinical and documentation triggers that distinguish codes, and identify bundling, modifier, and global period guidance. All codes fall under the Surgery — Urinary System section of CPT.
Complete Nephrectomy CPT Family Tree
Nephrectomy CPT Family
│
├── OPEN NEPHRECTOMY
│ ├── 50220 - Nephrectomy, open, simple, with partial ureterectomy → [[CPT 50220]]
│ ├── 50225 - Nephrectomy, open, complicated (prior surgery same kidney)
│ ├── 50230 - Radical nephrectomy, open, with regional LND and/or IVC thrombectomy → [[CPT 50230]]
│ ├── 50234 - Radical nephrectomy with total ureterectomy + bladder cuff, transperitoneal, with LND
│ └── 50236 - Radical nephrectomy with total ureterectomy (two separate incisions)
│
├── PARTIAL NEPHRECTOMY
│ ├── 50240 - Partial nephrectomy, open (nephron-sparing)
│ └── 50543 - Laparoscopic partial nephrectomy
│
├── LAPAROSCOPIC NEPHRECTOMY
│ ├── 50544 - Laparoscopic pyeloplasty (UPJ — no kidney removal; related procedure)
│ ├── 50545 - Laparoscopic radical nephrectomy (no separately documented LND)
│ ├── 50546 - Laparoscopic radical nephrectomy with regional lymphadenectomy → [[CPT 50546]]
│ ├── 50547 - Laparoscopic donor nephrectomy, living donor
│ ├── 50548 - Laparoscopic nephrectomy with total ureterectomy
│ └── 50549 - Unlisted laparoscopic procedure, renal
│
├── DONOR NEPHRECTOMY
│ ├── 50300 - Donor nephrectomy, open, cadaver donor
│ └── 50320 - Donor nephrectomy, open, living donor
│
└── ABLATION (non-resective — related)
├── 50541 - Laparoscopic ablation of renal cysts
└── 50542 - Laparoscopic ablation of renal mass lesion
Code Selection Logic — Step by Step
Step 1 — Determine Approach
| Approach | Code Range |
|---|---|
| Open (any incision, including rib resection) | 50220-50236 |
| Laparoscopic (standard, hand-assisted, or robotic-assisted) | 50543-50548 |
| Donor procurement | 50300, 50320, 50547 |
Critical rule:
Never apply an open code to a laparoscopic procedure or vice versa. Robotic-assisted laparoscopic nephrectomy is coded with laparoscopic codes (50543-50548) — no separate robotic CPT currently exists for nephrectomy.
Step 2 — Determine Scope of Resection
| Scope | Open | Laparoscopic |
|---|---|---|
| Entire kidney only (simple, no LND) | 50220 | 50545 |
| Entire kidney, prior surgery complicating | 50225 | Not separately described — use 50545-22 |
| Entire kidney with regional LND | 50230 | 50546 |
| Entire kidney with LND and/or IVC thrombectomy | 50230 | 50230 (convert to open) |
| Entire kidney with total ureterectomy + bladder cuff (one incision) | 50234 | 50548 |
| Entire kidney with total ureterectomy (two incisions) | 50236 | 50548 |
| Partial kidney only (nephron-sparing) | 50240 | 50543 |
Step 3 — Lymphadenectomy Trigger
The presence or absence of regional lymphadenectomy is the single most important code selector in the nephrectomy family:
| LND Status | Open Code | Laparoscopic Code |
|---|---|---|
| No LND, or only incidental hilar node removal | 50220 | 50545 |
| Formal regional LND documented as distinct surgical step | 50230 | 50546 |
| Extensive LND beyond regional (full para-aortic, pelvic) | 50230 + consider 38780-59 or modifier 22 | 50546 + consider 38589-59 or modifier 22 |
Important
Documentation requirement: The operative note must explicitly describe the regional lymphadenectomy as a distinct, intentional surgical step — identifying node locations dissected and removed — to support 50230 or 50546 over the simpler code.
Step 4 — IVC Thrombectomy
| IVC Thrombus Scenario | Code |
|---|---|
| No IVC involvement | 50220 or 50230 depending on LND |
| Renal vein thrombus only (no IVC extension) | 50230 open; 50546 laparoscopic if LND performed |
| Infrarenal IVC involvement (Level I) | 50230 — open approach strongly preferred |
| Infrahepatic IVC involvement (Level II-III) | 50230 — open; cardiovascular assist often required |
| Suprahepatic/intracardiac thrombus (Level IV) | 50230 + unlisted vascular or 37799 for complex IVC reconstruction; cardiovascular/CT surgery co-surgeon |
Critical note:
IVC thrombectomy is bundled into CPT 50230’s descriptor. Do not separately bill a vascular code for standard IVC tumor thrombus extraction within the operative field. Separate vascular codes apply only when IVC wall resection, patch repair, or complex reconstruction is required beyond standard thrombus extraction.
Step 5 — Total vs. Partial Ureterectomy
| Ureterectomy Extent | Open | Laparoscopic |
|---|---|---|
| Proximal ureter only (standard) | 50220, 50225, 50230 | 50545, 50546 |
| Total ureterectomy with bladder cuff, one incision, with LND | 50234 | 50548 |
| Total ureterectomy with bladder cuff, two incisions | 50236 | 50548 |
Important
Indication for total ureterectomy: Upper tract urothelial carcinoma (transitional cell carcinoma of the renal pelvis or ureter) — to prevent ureteral stump recurrence, the entire ureter including a cuff of bladder must be removed.
Step 6 — Donor Nephrectomy
When performing nephrectomy for organ donation, use donor-specific codes — do NOT use 50220 or 50545:
| Scenario | CPT |
|---|---|
| Cadaver donor, open | 50300 |
| Living donor, open | 50320 |
| Living donor, laparoscopic | 50547 |
Quick Code Comparison — Key Clinical Features
| CPT | Approach | Scope | LND | IVC Thrombectomy | wRVU 2026 | Global | Assistant (Medicare) |
|---|---|---|---|---|---|---|---|
| 50220 | Open | Simple | No | No | ~18.21 | 090 | Not payable |
| 50225 | Open | Simple, complicated | No | No | ~19.0 | 090 | Not payable |
| 50230 | Open | Radical | Yes | Yes (when present) | ~23.81 | 090 | Payable |
| 50234 | Open | Radical + total ureterectomy (1 incision, with LND) | Yes | No | ~24.0 | 090 | Payable |
| 50236 | Open | Radical + total ureterectomy (2 incisions) | No | No | ~22.0 | 090 | Payable |
| 50240 | Open | Partial (nephron-sparing) | No | No | ~20.0 | 090 | Variable |
| 50543 | Laparoscopic | Partial | No | No | ~20.0 | 090 | Variable |
| 50545 | Laparoscopic | Radical | No | No | ~20.0 | 090 | Payable |
| 50546 | Laparoscopic | Radical | Yes | No (convert to open) | ~21.07 | 090 | Payable |
| 50547 | Laparoscopic | Donor | N/A | No | ~18.0 | 090 | Variable |
| 50548 | Laparoscopic | Radical + total ureterectomy | No | No | ~22.0 | 090 | Payable |
Most Common Coding Errors — Audit Checklist
- Using 50220 when LND was performed — if the operative note documents lymph node dissection, the code must be 50230 (open) or 50546 (laparoscopic); never add a separate LND code to 50220 or 50545.
- Separately billing adrenalectomy for ipsilateral gland — ipsilateral adrenalectomy is bundled into 50230 and 50546; do not bill 60540/60650 for the same-side adrenal.
- Using open code for robotic/laparoscopic procedure — robotic-assisted laparoscopic nephrectomy uses laparoscopic CPT codes (50545/50546), not open codes (50220/50230).
- Using 50220 for total ureterectomy — if the entire ureter including bladder cuff is removed, 50234 or 50236 (open) or 50548 (laparoscopic) are required.
- Failing to upcode to 50225 for prior kidney surgery — previous surgery on the same kidney significantly altering anatomy must be documented and triggers 50225 over 50220.
- Not documenting LND sufficiently — the operative note must describe lymphadenectomy as a distinct, intentional step with nodal locations identified; vague mentions of “node sampling” are insufficient to support 50230/50546 over 50220/50545.
- Using 50220 for donor nephrectomy — donor procurement has its own CPT codes (50300, 50320, 50547); 50220 is not appropriate for organ donation.
- Billing laparoscopic code after conversion to open — when conversion occurs, the laparoscopic code requires modifier -53 and the open code is separately reported; do not bill laparoscopic alone for a procedure completed open.
- Routine post-op visits billed separately in global period — all routine follow-up within 90 days is bundled; only unrelated conditions (modifier -24) or complications requiring return to OR (modifier -78) are separately billable.
Inpatient Only Designation
| CPT | Inpatient Only (Medicare) |
|---|---|
| 50220 | Yes — inpatient only |
| 50225 | Yes — inpatient only |
| 50230 | Yes — inpatient only |
| 50234 | Yes — inpatient only |
| 50236 | Yes — inpatient only |
| 50240 | Yes — inpatient only |
| 50543 | No — may be outpatient/ASC |
| 50545 | No — may be outpatient/ASC |
| 50546 | No — may be outpatient/ASC |
| 50547 | No — may be outpatient/ASC |
| 50548 | No — may be outpatient/ASC |
All open nephrectomy codes are Medicare Inpatient Only — they cannot be billed on outpatient hospital or ASC claims for Medicare beneficiaries. Laparoscopic codes are not inpatient-only and may be performed in ASC or outpatient settings when clinically appropriate and facility-capable.
HCC / Risk Adjustment Reference
CPT codes do not carry HCC weight — RAF is generated by ICD-10-CM diagnosis codes:
| ICD-10-CM | Description | HCC |
|---|---|---|
| C64.1 | Malignant neoplasm of right kidney | HCC 10 |
| C64.2 | Malignant neoplasm of left kidney | HCC 10 |
| C65.1 | Malignant neoplasm of right renal pelvis | HCC 10 |
| C65.2 | Malignant neoplasm of left renal pelvis | HCC 10 |
| C79.01 | Secondary malignant neoplasm of right kidney | HCC 10/11 |
| C79.02 | Secondary malignant neoplasm of left kidney | HCC 10/11 |
| N18.6 | End-stage renal disease | HCC 136 |
| N18.5 | CKD, Stage 5 | HCC 136 |
| N18.4 | CKD, Stage 4 | HCC 137 |
| N18.3 | CKD, Stage 3 | HCC 138 |
Always code the specific renal malignancy and all documented comorbidities for complete RAF and DRG capture.
MS-DRG Quick Reference
MDC 11 — Diseases and Disorders of the Kidney and Urinary Tract
| DRG | Description | When |
|---|---|---|
| 656 | Kidney and Ureter Procedures for Neoplasm with MCC | Neoplasm principal + MCC |
| 657 | Kidney and Ureter Procedures for Neoplasm with CC | Neoplasm principal + CC |
| 658 | Kidney and Ureter Procedures for Neoplasm without CC/MCC | Neoplasm principal, no CC/MCC |
| 673 | Other Kidney and Urinary Tract Procedures with MCC | Non-neoplasm principal + MCC |
| 674 | Other Kidney and Urinary Tract Procedures with CC | Non-neoplasm principal + CC |
| 675 | Other Kidney and Urinary Tract Procedures without CC/MCC | Non-neoplasm principal, no CC/MCC |
DRG 656 pays substantially more than DRG 658 — complete documentation of all comorbidities (CKD stage, hypertension, diabetes, CHF, anemia, VTE, obesity) is essential for appropriate CC/MCC capture. This is one of the highest-value CDI opportunities in urology inpatient encounters.
Conversion to Open — Coding Framework
| Scenario | Laparoscopic Code | Open Code |
|---|---|---|
| Diagnostic lap only; open performed for definitive work | Not reported | 50230 alone |
| Therapeutic lap started, abandoned before completion | 50545-53 or 50546-53 | 50230 |
| Lap completed, then open required for complication | 50545 or 50546 | Separate hemostasis/exploration CPT |
| Planned hand-assisted approach via extension of port | 50545 or 50546 | Not applicable — HALS uses laparoscopic code |
Global Period and Modifier Framework
| Modifier | Use Case | Example |
|---|---|---|
| -22 | Significantly increased complexity | Hostile abdomen, extended LND, massive tumor |
| -24 | Unrelated E/M during 90-day global | New AFib at post-op visit |
| -50 | Bilateral nephrectomy same session | Bilateral ADPKD nephrectomy |
| -51 | Multiple procedures same session | Nephrectomy + concurrent procedure |
| -52 | Reduced services, surgeon’s discretion | Partial completion — elective discontinuation |
| -53 | Discontinued procedure, patient safety | Hemorrhage-driven conversion |
| -58 | Staged procedure planned at time of original | Second-stage planned procedure |
| -62 | Co-surgeons — two primaries | Level IV IVC thrombus — urology + CT surgery |
| -78 | Unplanned return to OR, global period | Post-op hemorrhage, port site hernia |
| -79 | Unrelated procedure during global period | Unrelated appendectomy during recovery |
| -80 | MD surgical assistant | Complex open or laparoscopic |
| -82 | Assistant when qualified resident unavailable | Teaching hospital exception |
| -AS | PA/NP/CNS first assist | Non-physician assistant |
| -RT/-LT | Laterality — right or left | Required for all unilateral procedures |
| -XU | Unusual non-overlapping service | Distinct separately payable service alternative to -59 |
Individual Code Notes in This Vault
| CPT | Description | Note Status |
|---|---|---|
| 50220 | Open simple nephrectomy | CPT 50220 |
| 50225 | Open nephrectomy, complicated | (create note) |
| 50230 | Open radical nephrectomy with LND/IVC thrombectomy | CPT 50230 |
| 50234 | Open radical nephrectomy with total ureterectomy, one incision, LND | (create note) |
| 50236 | Open radical nephrectomy with total ureterectomy, two incisions | (create note) |
| 50240 | Open partial nephrectomy | (create note) |
| 50543 | Laparoscopic partial nephrectomy | (create note) |
| 50545 | Laparoscopic radical nephrectomy | (create note) |
| 50546 | Laparoscopic radical nephrectomy with regional LND | CPT 50546 |
| 50547 | Laparoscopic donor nephrectomy, living donor | (create note) |
| 50548 | Laparoscopic nephrectomy with total ureterectomy | (create note) |
Suggested Obsidian Linkouts
- 50220 - Open simple nephrectomy
- 50230 - Open radical nephrectomy with LND and/or IVC thrombectomy
- 50546 - Laparoscopic radical nephrectomy with regional LND
- 📋 Urology CPT Codes Reference
- Global Surgical Package MOC
- Procedure Status & Complexity Modifiers
- -22 - Modifier 22, increased procedural services
- -53 - Modifier 53, discontinued procedure
- -62 - Modifier 62, co-surgeons
- -78 - Modifier 78, unplanned return to OR
- -80 - Modifier 80, surgical assistant
- -AS - Modifier AS, PA/NP first assist
- -LT - Laterality modifiers