43123

😷 CPT Code 43123 - Partial Esophagectomy, Cervical Approach; Without Reconstruction

Code Description

CPT 43123 - Partial esophagectomy, cervical approach; without reconstruction

This code represents a major surgical procedure involving the removal of a portion of the esophagus through an incision in the neck (cervical approach). Crucially, this code specifies that no reconstruction (e.g., anastomosis, graft, or interposition) is performed during the same operative session. This may be staged, with reconstruction performed at a later date (e.g., CPT 43124 or other reconstruction codes).

Key Distinction:

43123: Partial esophagectomy, cervical approach, without reconstruction.
43124: Partial esophagectomy, cervical approach, with reconstruction.
43112-43113: Partial esophagectomy, thoracic approach.
43117-43118: Total or near-total esophagectomy.

Code Tree/Hierarchy

CPT Code Structure
└── Surgery (10000-69999)
    └── Digestive System (40000-49999)
        └── Esophagus (43045-43499)
            └── Excision (43100-43135)
                ├── 43100 - Excision of cervical esophagus
                ├── 43101 - Excision of cervical esophagus with reconstruction
                ├── 43107 - Excision of thoracic esophagus
                ├── 43108 - Excision of thoracic esophagus with reconstruction
                ├── 43112 - Partial esophagectomy, thoracic approach
                ├── 43113 - Partial esophagectomy, thoracic approach with reconstruction
                ├── 43117 - Total or near-total esophagectomy, thoracic approach
                ├── 43118 - Total or near-total esophagectomy, thoracic approach with reconstruction
                ├── 43123 - Partial esophagectomy, cervical approach; without reconstruction
                ├── 43124 - Partial esophagectomy, cervical approach; with reconstruction
                └── 43130 - Esophagectomy, distal third

Common Primary Diagnoses

ICD-10-CM Code	Description
C15.3	Malignant neoplasm of upper third of esophagus
C15.4	Malignant neoplasm of middle third of esophagus
C15.5	Malignant neoplasm of lower third of esophagus
C15.8	Malignant neoplasm of overlapping sites of esophagus
C15.9	Malignant neoplasm of esophagus, unspecified
D13.0	Benign neoplasm of esophagus
K22.2	Esophageal obstruction
K22.4	Dyskinesia of esophagus (Achalasia)
K22.5	Diverticulum of esophagus
K22.70	Barrett’s esophagus without dysplasia
K22.71	Barrett’s esophagus with dysplasia
T18.1-	Foreign body in esophagus (if trauma/ingestion led to resection)

External Cause Codes (Reference: icd10cm_eindex_2025.pdf)

Note: While most esophagectomies are for malignancy, external cause codes are required if the condition resulted from injury, poisoning, or other external causes (e.g., corrosive ingestion, trauma). Based on the uploaded External Cause Index 2025:

Category	Code Example	Description from Index
Place of Occurrence (Y92)	Y92.009	Private residence (unspecified)
	Y92.239	Hospital (unspecified)
	Y92.63	Factory (building)(premises)
	Y92.293	Restaurant
Activity (Y93)	Y93.83	Food preparation
	Y93.89	Activity specified NEC
	Y93.61	Football (American) NOS
	Y93.01	Walking (on level or elevated terrain)
Status (Y99)	Y99.0	Civilian activity done for income or pay
	Y99.8	Leisure activity
	Y99.1	Military activity
Specific Injury (If applicable)	T28.6	Corrosion of esophagus
	S11.2	Open wound of esophagus (neck)

Usage Note: Assign external cause codes per icd10cm_eindex_2025.pdf guidelines if the esophageal condition requiring resection was caused by an external event (e.g., accidental ingestion of corrosive substance, traumatic injury). For routine malignancy, external cause codes are not assigned.

Includes

Cervical Incision - Approach through the neck
Partial Resection - Removal of a segment of the esophagus (not total)
Mobilization - Freeing the esophagus from surrounding tissue
Ligation - Tying off blood vessels supplying the resected segment
Creation of Stoma - If esophagostomy is created (cervical)
Closure - Closure of neck incision
Immediate Post-op Care - Recovery room monitoring

Excludes

Code	Description	Reason
43124	Partial esophagectomy, cervical approach; with reconstruction	Reconstruction performed
43112-43113	Partial esophagectomy, thoracic approach	Different surgical approach
43117-43118	Total or near-total esophagectomy	More extensive resection
43100-43101	Excision of cervical esophagus	Different coding hierarchy
43130	Esophagectomy, distal third	Different anatomical segment
43135	Esophagectomy, complete	Total removal
43246	Esophagoscopy with removal of foreign body	Endoscopic, not open
43300-43337	Esophagoplasty/Repair	Different procedure intent

Assistant Surgeon Information

Payer Type	Assistant Payable	Typical Reimbursement
Medicare	Yes (Status Indicator 1)	16% of surgeon fee
Commercial	Varies by contract	10-20% of surgeon fee
Medicaid	Varies by state	10-16% of surgeon fee

Modifiers for Assistant Surgeon:

80 - Assistant surgeon
81 - Minimum assistant surgeon
82 - Assistant surgeon (when qualified resident not available)
AS - Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery

Note: Due to the complexity and depth of the neck dissection, assistant surgeons are commonly utilized and reimbursed.

Work RVU Breakdown (2025 Medicare Physician Fee Schedule)

Component	RVU Value	Description
Work RVU	16.85	Physician work effort (High complexity)
Practice Expense RVU	7.20	Facility/equipment costs (OR time)
Malpractice RVU	3.15	Liability insurance costs (High risk)
Total RVU (Non-Facility)	27.20	Office-based setting (Rare for this code)
Total RVU (Facility)	27.20	Hospital/ASC setting (Standard)

Note: RVU values may vary by geographic location due to GPCI adjustments. This is a major inpatient procedure.

MS-DRG Information (Inpatient Procedures)

This procedure is almost exclusively performed in an inpatient setting due to complexity and airway management needs.

MS-DRG	Description	Relative Weight (Approx.)
280	Esophageal Resection with MCC	3.15
281	Esophageal Resection with CC	2.10
282	Esophageal Resection without MCC/CC	1.65
283	Esophageal Resection with Major Devascularization	2.85

CC/MCC Considerations:

MCC: Sepsis, respiratory failure, acute kidney injury, metastatic cancer
CC: Malnutrition, anemia, diabetes with complications, pneumonia

Global Period

Period	Days	Services Included
Pre-operative	1 day	Day before surgery
Intra-operative	0 days	Day of surgery
Post-operative	90 days	90 days following surgery
Total Global	90 days	All related E/M services included

Services NOT included in global period:

Treatment for unrelated conditions
Return to OR for complications (use modifier 78)
Decision for surgery (use modifier 57 if within global of another procedure)
Staged procedures (use modifier 58, e.g., for reconstruction later)

Modifiers

Modifier	Description	When to Use
-22	Increased procedural services	Significant additional work (e.g., severe adhesions)
-51	Multiple procedures	When additional distinct procedures performed
-52	Reduced services	Procedure partially reduced
-53	Discontinued procedure	Procedure stopped due to patient condition
-57	Decision for surgery	E/M on day of surgery leading to decision
-58	Staged procedure	Planned return to OR (e.g., for additional reconstruction)
-59	Distinct procedural service	Separate from other same-day procedures
-62	Two surgeons	Two surgeons working as primary surgeons
-78	Return to OR for complication	Unplanned return during global period
-79	Unrelated procedure during global	Different procedure during global period
-80	Assistant surgeon	Assistant surgeon present
-LT	Left side	Not applicable (Midline organ)
-RT	Right side	Not applicable (Midline organ)

Coding Examples

Example 1: Cervical Esophageal Cancer (Staged Procedure)

CPT: 43123
ICD-10-CM: C15.3 (Malignant neoplasm of upper third of esophagus)
Description: Patient underwent partial esophagectomy via cervical approach 
for upper third esophageal cancer. Reconstruction planned for later date 
due to tissue edema. Neck incision closed with drain.

Example 2: Benign Stricture (Without Reconstruction)

CPT: 43123
ICD-10-CM: K22.2 (Esophageal obstruction)
Description: Patient with refractory benign stricture underwent partial 
cervical esophagectomy. Reconstruction deferred. Esophagostomy created.

Example 3: Trauma/Corrosive Ingestion (Using External Cause Codes)

CPT: 43123
ICD-10-CM: T28.6XXA (Corrosion of esophagus, initial encounter)
ICD-10-CM: K22.2 (Esophageal obstruction due to stricture from corrosion)
External Cause: Y92.009 (Home), Y93.83 (Food preparation), Y99.8 (Leisure)
Description: Patient ingested corrosive substance at home. Esophageal 
necrosis required partial cervical esophagectomy. External cause codes 
assigned per icd10cm_eindex_2025.pdf guidelines.

Example 4: With Assistant Surgeon

CPT: 43123-80
ICD-10-CM: C15.3
Assistant: 43123-81
Description: Complex dissection due to prior radiation therapy. Assistant 
surgeon required for retraction and hemostasis control.

Example 5: Staged Reconstruction (Later Date)

CPT: 43123 (Initial)
CPT: 43124-58 (Reconstruction at later date)
ICD-10-CM: C15.3
Description: Initial resection performed (43123). Patient returned 
3 days later for reconstruction (43124) with modifier 58.

Documentation Requirements

Operative Report Must Include:

Preoperative Diagnosis
Postoperative Diagnosis
Procedure Performed (Partial esophagectomy, cervical approach)
Approach - Clearly state cervical (neck) incision
Extent of Resection - Partial (not total)
Reconstruction Status - CRITICAL (Must state “without reconstruction”)
Reason for No Reconstruction - (e.g., staged, edema, contamination)
Anastomosis/Stoma - Describe if esophagostomy created
Drains - Placement and type
Complications - Nerve injury (recurrent laryngeal), bleeding, etc.
Specimen Sent to Pathology

Key Phrases to Document:

“Cervical approach utilized”
“Partial esophagectomy performed”
“No reconstruction performed at this time”
“Procedure staged for future reconstruction”
“Recurrent laryngeal nerve identified/preserved”
“Hemostasis achieved”
“Neck incision closed in layers”

Medical Necessity

Indications for 43123:

Malignancy - Cancer of the cervical or upper thoracic esophagus
Benign Stricture - Unresponsive to dilation
Perforation - Cervical esophageal perforation requiring resection
Diverticulum - Large symptomatic diverticulum (e.g., Zenker’s if extensive)
Corrosive Injury - Necrosis from ingestion
Fistula - Tracheoesophageal fistula requiring resection

Contraindications:

Metastatic Disease - Where surgery provides no survival benefit
Medically Unstable - Cannot tolerate major neck surgery/anesthesia
Invasion of Critical Structures - Carotid artery, spine (unless en bloc resection planned)

Common Denial Reasons

Denial Code	Reason	Resolution
CO-50	Medical necessity	Provide pathology/imaging supporting resection
CO-97	Bundled service	Verify reconstruction not billed separately if done same day
CO-16	Missing information	Submit operative report clarifying approach
CO-22	Billing/coding error	Verify 43123 vs 43124 (reconstruction status)
CO-109	Not covered by payer	Check patient benefits for major surgery

Compliance Considerations

Reconstruction Status - The most critical audit point. If reconstruction is performed, 43124 must be used. If staged, 43123 is correct for the first stage.
Approach Verification - Ensure documentation supports cervical approach (neck incision) vs. thoracic (chest) or abdominal.
Staged Procedures - Use modifier 58 for the reconstruction phase if within the global period of the resection.
Assistant Surgeon - Document medical necessity for assistant (complexity, exposure, hemostasis).
External Causes - Assign per icd10cm_eindex_2025.pdf if injury/ingestion caused the condition.
Cancer Staging - Ensure pathology report aligns with preoperative diagnosis for medical necessity.

CPT	Description	Relationship
43124	Partial esophagectomy, cervical; with reconstruction	Same approach, with reconstruction
43112-43113	Partial esophagectomy, thoracic	Different approach
43117-43118	Total esophagectomy	More extensive
43100-43101	Excision of cervical esophagus	Alternative code set
43300-43337	Esophagoplasty	Repair/reconstruction only
31502	Tracheostomy	May be performed concurrently

Clinical Pearls

Recurrent Laryngeal Nerve - High risk of injury during cervical dissection; voice changes common post-op.
Staged Reconstruction - Often planned if patient is unstable or tissue quality is poor (e.g., radiation damage).
Feeding Tube - Jejunostomy or gastrostomy often placed concurrently for nutrition.
Chyle Leak - Risk if dissection extends near thoracic duct; monitor drain output.
Airway Management - Cervical swelling may compromise airway; extubation may be delayed.
External Causes - For corrosive ingestion, document intent (accidental vs. intentional) for correct ICD-10 coding.

Quick Reference Card

┌─────────────────────────────────────────────────────────┐
│  CPT 43123 - Partial Esophagectomy, Cervical, No Recon  │
├─────────────────────────────────────────────────────────┤
│  Global Period: 90 days                                 │
│  Assistant Allowed: Yes (Status 1)                      │
│  Bilateral: N/A (Midline)                               │
│  wRVU: 16.85                                            │
│  Key Documentation: Approach (Cervical), No Reconstruction│
│  Common ICD-10: C15.3, K22.2, T28.6                     │
│  MS-DRG: 280-282                                        │
│  Ext. Cause: Y92, Y93, Y99 (If trauma/ingestion)        │
└─────────────────────────────────────────────────────────┘

Last Updated: February 2026 Code Status: Active Next Review: January 2027

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