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CPT 32856: Donor Lung Preparation for Transplant

CPT code 32856 designates the surgical preparation of donor lungs for transplant into a recipient. This code captures operative work focused on readying donor pulmonary tissue for implantation, a critical step in lung transplantation workflows. Nationally, accurate coding for donor organ preparation affects quality reporting, organ allocation documentation, and hospital transplant program case mix data.

Key payers commonly involved with transplant coverage include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of code definition and clinical context, payer coverage considerations, and the types of benchmarks and policy updates typically associated with transplant procedure coding. The publication outlines where CPT code 32856 fits within surgical transplant service lines and common sites of service, and it highlights implications for hospital billing and transplant program reporting.

This summary equips clinical administrators, billing professionals, and policy analysts with the essential context needed to interpret code use and to identify areas where payer policy and transplant program documentation intersect. Data not available in the input is noted where applicable.

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Billing Code Overview

CPT code 32856 describes the surgical preparation of donor lungs for transplant into the recipient. This procedure includes inspection, trimming, and preparation of donor pulmonary tissue to ensure suitability for implantation.

Service type: Surgical transplant preparation
Typical site of service: Inpatient operating room or transplant center surgical suite

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CPT 32856: Donor Lung Preparation for Transplant

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Billing Code Overview

Service type: Surgical transplant preparation
Typical site of service: Inpatient operating room or transplant center surgical suite

Clinical & Coding Specifications

Clinical Context

A typical patient scenario involves a recipient who has been approved for lung transplantation due to end-stage pulmonary disease (for example, idiopathic pulmonary fibrosis or cystic fibrosis). The transplant team coordinates organ allocation and transport; donor lungs arrive either from a local donor or via air transport. In the operating room, a cardiothoracic surgeon and transplant team perform intraoperative preparation of the donor lungs for implantation into the recipient. This includes inspection, trimming of bronchial and vascular cuffs, backtable preparation, assessment of lung inflation and reperfusion readiness, removal of extraneous tissue, and any necessary repair or modification to optimize graft function. The service is performed in an inpatient surgical suite or designated transplant operating room under general anesthesia, typically immediately prior to or concurrent with recipient thoracotomy and implantation. The workflow involves donor organ receipt, sterile backtable setup, surgical preparation by the transplant surgeon (often with assistance from an assistant surgeon or surgical fellow), documentation of organ condition and any graft interventions, and communication with the transplant coordinator for ischemia time tracking and implantation timing.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Used if only the surgeon's professional component is reported separately from facility charges.
`52`	Reduced services	Used when preparation is abbreviated compared with the usual procedure.
`53`	Discontinued procedure	Used if preparation was started but then discontinued for documented clinical reasons.
`62`	Two surgeons	Used when two surgeons work together as co-surgeons for complex donor lung preparation.
`63`	Procedure performed on infants	Used if donor lungs are from an infant donor and coding requires the pediatric modifier.
`66`	Surgical team	Used when a surgical team is documented by the facility and payor policy supports team reporting.
`78`	Unplanned return to the OR	Used if donor lung preparation required an unplanned return to the operating room intraoperatively.
`80`	Assistant surgeon	Used when an assistant surgeon provides documented assistance during donor lung preparation.
`81`	Minimum assistant surgeon	Used when a minimum-level assistant surgeon is documented.
`82`	Assistant surgeon (when qualified assistant not available)	Used when a less-qualified assistant performs assistance and documentation supports use.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services	Used when an advanced practice clinician performs or assists with the procedure per payor rules.
`QK`	Medical direction of two, three, or four assistants	Used when the surgeon medically directs multiple assistants under applicable rules.
`QX`	Certified registered nurse anesthetist (CRNA) service with physician absent	Used if a CRNA provides anesthesia without physician anesthesiologist present as defined by payor policy.
`QY`	Medical direction of one CRNA	Used when the physician medically directs one CRNA for anesthesia services.

Taxonomy Code	Specialty	Notes
2080P0200X	Thoracic Surgery	Primary specialty performing donor lung preparation and implantation.
208VP0000X	Cardiothoracic Surgery	Surgeons trained in combined cardiac and thoracic transplant procedures.
207L00000X	Pulmonology	Transplant pulmonologists involved in recipient evaluation and intraoperative assessment of graft function.
163WL0500X	Transplant Surgery	Surgeons specializing in multi-organ transplant programs and perioperative management.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J84.10`	Pulmonary fibrosis, unspecified	End-stage interstitial lung disease commonly leading to listing for lung transplantation.
`J44.9`	Chronic obstructive pulmonary disease, unspecified	Severe COPD may progress to respiratory failure requiring lung transplant evaluation.
`J96.11`	Chronic respiratory failure with hypoxia	Indicates advanced respiratory failure where transplantation may be considered.
`E84.0`	Cystic fibrosis with pulmonary manifestations	Genetic disease frequently necessitating lung transplantation in advanced stages.
`I50.9`	Heart failure, unspecified	In combined heart-lung failure scenarios, lung preparation may occur as part of heart-lung transplant planning.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`32851`	Pneumonectomy, single, without mediastinal lymphadenectomy	May be performed on the recipient during recipient pneumonectomy to remove diseased lung prior to donor lung implantation.
`32854`	Thoracotomy, with decortication, removal of restrictive pleural peel (separate procedure)	May be performed intraoperatively for recipient chest preparation or addressing pleural issues prior to implantation.
`32860`	Thoracotomy, with division of major airway and bronchoplasty or bronchial anastomosis	Related to bronchial anastomosis performed during implantation of donor lungs into the recipient.
`33945`	Cardiac transplantation, heart alone (includes cardiopulmonary bypass)	Listed as related transplant suite procedure when combined heart-lung transplantation is performed; coordinates with lung graft preparation.
`32820`	Thoracotomy, surgical exploration, with or without biopsy	May be used for initial recipient chest access and assessment before implantation of donor lungs.

CPT 32850: Lung Procurement and Cold Preservation

CPT-32851-SINGLE-LUNG-REPLACEMENT-WITHOUT-CARDIOPULMONARY-BYPASS

CPT 32851: Single Lung Replacement Without Cardiopulmonary Bypass

CPT-32852-SINGLE-LUNG-TRANSPLANT-WITH-CARDIOPULMONARY-BYPASS

CPT 32852: Single-Lung Transplant with Cardiopulmonary Bypass

CPT-32853-BILATERAL-LUNG-TRANSPLANT-WITHOUT-BYPASS

CPT 32853: Bilateral Lung Transplant Without Cardiopulmonary Bypass

CPT-32854-BILATERAL-LUNG-TRANSPLANT-CARDIOPULMONARY-BYPASS

CPT 32854: Bilateral Lung Transplant with Cardiopulmonary Bypass

CPT-32855-SINGLE-DONOR-LUNG-PREPARATION-FOR-TRANSPLANT

CPT 32855: Preparation of Single Donor Lung for Transplant

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Used if only the surgeon's professional component is reported separately from facility charges.
`52`	Reduced services	Used when preparation is abbreviated compared with the usual procedure.
`53`	Discontinued procedure	Used if preparation was started but then discontinued for documented clinical reasons.
`62`	Two surgeons	Used when two surgeons work together as co-surgeons for complex donor lung preparation.
`63`	Procedure performed on infants	Used if donor lungs are from an infant donor and coding requires the pediatric modifier.
`66`	Surgical team	Used when a surgical team is documented by the facility and payor policy supports team reporting.
`78`	Unplanned return to the OR	Used if donor lung preparation required an unplanned return to the operating room intraoperatively.
`80`	Assistant surgeon	Used when an assistant surgeon provides documented assistance during donor lung preparation.
`81`	Minimum assistant surgeon	Used when a minimum-level assistant surgeon is documented.
`82`	Assistant surgeon (when qualified assistant not available)	Used when a less-qualified assistant performs assistance and documentation supports use.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services	Used when an advanced practice clinician performs or assists with the procedure per payor rules.
`QK`	Medical direction of two, three, or four assistants	Used when the surgeon medically directs multiple assistants under applicable rules.
`QX`	Certified registered nurse anesthetist (CRNA) service with physician absent	Used if a CRNA provides anesthesia without physician anesthesiologist present as defined by payor policy.
`QY`	Medical direction of one CRNA	Used when the physician medically directs one CRNA for anesthesia services.

Taxonomy Code	Specialty	Notes
2080P0200X	Thoracic Surgery	Primary specialty performing donor lung preparation and implantation.
208VP0000X	Cardiothoracic Surgery	Surgeons trained in combined cardiac and thoracic transplant procedures.
207L00000X	Pulmonology	Transplant pulmonologists involved in recipient evaluation and intraoperative assessment of graft function.
163WL0500X	Transplant Surgery	Surgeons specializing in multi-organ transplant programs and perioperative management.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J84.10`	Pulmonary fibrosis, unspecified	End-stage interstitial lung disease commonly leading to listing for lung transplantation.
`J44.9`	Chronic obstructive pulmonary disease, unspecified	Severe COPD may progress to respiratory failure requiring lung transplant evaluation.
`J96.11`	Chronic respiratory failure with hypoxia	Indicates advanced respiratory failure where transplantation may be considered.
`E84.0`	Cystic fibrosis with pulmonary manifestations	Genetic disease frequently necessitating lung transplantation in advanced stages.
`I50.9`	Heart failure, unspecified	In combined heart-lung failure scenarios, lung preparation may occur as part of heart-lung transplant planning.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`32851`	Pneumonectomy, single, without mediastinal lymphadenectomy	May be performed on the recipient during recipient pneumonectomy to remove diseased lung prior to donor lung implantation.
`32854`	Thoracotomy, with decortication, removal of restrictive pleural peel (separate procedure)	May be performed intraoperatively for recipient chest preparation or addressing pleural issues prior to implantation.
`32860`	Thoracotomy, with division of major airway and bronchoplasty or bronchial anastomosis	Related to bronchial anastomosis performed during implantation of donor lungs into the recipient.
`33945`	Cardiac transplantation, heart alone (includes cardiopulmonary bypass)	Listed as related transplant suite procedure when combined heart-lung transplantation is performed; coordinates with lung graft preparation.
`32820`	Thoracotomy, surgical exploration, with or without biopsy	May be used for initial recipient chest access and assessment before implantation of donor lungs.

CPT 32850: Lung Procurement and Cold Preservation

CPT-32851-SINGLE-LUNG-REPLACEMENT-WITHOUT-CARDIOPULMONARY-BYPASS

CPT 32851: Single Lung Replacement Without Cardiopulmonary Bypass

CPT-32852-SINGLE-LUNG-TRANSPLANT-WITH-CARDIOPULMONARY-BYPASS

CPT 32852: Single-Lung Transplant with Cardiopulmonary Bypass

CPT-32853-BILATERAL-LUNG-TRANSPLANT-WITHOUT-BYPASS

CPT 32853: Bilateral Lung Transplant Without Cardiopulmonary Bypass

CPT-32854-BILATERAL-LUNG-TRANSPLANT-CARDIOPULMONARY-BYPASS

CPT 32854: Bilateral Lung Transplant with Cardiopulmonary Bypass

CPT-32855-SINGLE-DONOR-LUNG-PREPARATION-FOR-TRANSPLANT

CPT 32855: Preparation of Single Donor Lung for Transplant

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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CPT 32856: Donor Lung Preparation for Transplant

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Billing Code Overview

OpenPayer

CPT 32856: Donor Lung Preparation for Transplant

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References