Crystal's MCW Coder HubCPT 65780: Ocular surface reconstruction; amniotic membrane transplantation, multiple layers
Code Description
- Long Title: Ocular surface reconstruction; amniotic membrane transplantation, multiple layers
- Short Title: OCULAR RECONST TRANSPLANT
- Explanation: This major reconstructive procedure involves the surgical application of an amniotic membrane (tissue derived from the innermost layer of the human placenta) to the surface of the eye. CPT 65780 specifically requires that the membrane be transplanted in multiple layers and sutured into place. This is typically reserved for severe ocular surface diseases, large corneal defects, or massive tissue loss where a single layer or sutureless graft is insufficient to promote healing and reconstruct the ocular surface.
Reimbursement & Work Details
- wRVU: ~8.00 (Work Relative Value Units, subject to standard MPFS adjustments)
- Global Period: 090 Days (Major surgical procedure)
- Assistant Payable: No (Medicare and most payers do not reimburse for an assistant surgeon for this code).
ICD-10-CM / Diagnosis Code(s)
Unlike simple pterygium excisions, the indications for a multi-layered amniotic membrane transplantation usually involve severe, sight-threatening ocular pathology.
Primary Diagnoses Commonly Supporting Medical Necessity:
- T26.- (Burn and corrosion confined to eye and adnexa)
- Example: T26.11XA (Burn of cornea and conjunctival sac, right eye, initial encounter)
- L51.1 (Stevens-Johnson syndrome) or L51.2 (Toxic epidermal necrolysis): Systemic conditions causing severe blistering and sloughing of the ocular surface.
- H16.0- (Corneal ulcer): Especially central, perforated, or Mooren’s ulcers.
- Example: H16.011 (Central corneal ulcer, right eye)
- H18.5- (Bullous keratopathy): With severe epithelial defects.
- H11.05- (Recurrent pterygium): Caution - see bundling notes below regarding how to bill this alongside pterygium excision.
HCC Information:
- Yes, many underlying diagnoses for 65780 map to Hierarchical Condition Categories (HCCs).
- Stevens-Johnson syndrome (L51.1) maps to the severe skin disorders HCC.
- Chemical/Thermal burns of the eye (T26.-) often map to major trauma/burn HCCs depending on the severity and exact code.
- Severe Corneal Ulcers may also risk-adjust in certain commercial models, though less common in standard Medicare Part C.
Bundling & NCCI Edits
Includes (Incidental/Bundled into 65780):
- Local anesthesia (retrobulbar/subconjunctival).
- Preparation, cutting, and shaping of the amniotic membrane tissue.
- The work of applying and suturing multiple layers of the membrane.
- Standard postoperative care within the 90-day global window.
- Healthcare Common Procedure Coding System (HCPCS) code V2790 (Amniotic membrane for surgical reconstruction) is generally billed by the facility (ASC or hospital) where the surgery takes place, not the physician, as the cost of the tissue is absorbed by the facility fee.
Exclusives / Mutually Exclusive (Cannot be billed with 65780):
- 65778: Placement of amniotic membrane on the ocular surface; without sutures. (You cannot bill a sutureless membrane and a sutured membrane on the same eye at the same session).
- 65779: Placement of amniotic membrane on the ocular surface; single layer, sutured. (65780 inherently includes the work of 65779).
- 65420 / 65426: Excision of pterygium. Critical Coding Rule: If a surgeon removes a pterygium and uses a multiple-layer amniotic membrane to fill the defect, you cannot bill 65420 + 65780. The AMA and NCCI dictate that you must use 65426 (Excision of pterygium; with graft) to represent the entire encounter. 65780 is considered an inclusive reconstruction technique in this scenario.
Coding Tree & Hierarchy
MS-DRG (Medicare Severity Diagnosis Related Group)
If the patient requires inpatient admission (e.g., due to severe systemic Stevens-Johnson syndrome or a catastrophic chemical burn):
- MS-DRG 124: Other Disorders of the Eye with MCC (Major Complication or Comorbidity).
- MS-DRG 125: Other Disorders of the Eye without MCC.
Coding Examples & Scenarios
Scenario 1: Severe Chemical Burn
- Documentation: “Patient sustained a severe alkaline chemical burn to the left eye resulting in near-total loss of the corneal and limbal epithelium with deep stromal melting. To reconstruct the ocular surface and prevent perforation, an amniotic membrane was prepared. A basilar layer was sutured stromal-side down into the defect using 10-0 nylon, and a second, larger amniotic membrane layer was sutured epithelial-side up over the entire cornea and secured to the episclera.”
- Coding:
- CPT: 65780-LT
- ICD-10: T26.62XA (Corrosion of cornea and conjunctival sac, left eye, initial encounter)
- Explanation: The documentation clearly specifies multiple layers of amniotic membrane and the use of sutures for a severe surface defect, perfectly supporting 65780.
Scenario 2: Single Layer vs. Multiple Layer Confusion
- Documentation: “Patient presents with a persistent, non-healing central corneal ulcer on the right eye. The ulcer was debrided. A single piece of AmbioDry amniotic tissue was cut to size, placed over the ulcer bed, and secured to the peripheral cornea with interrupted 10-0 Vicryl sutures.”
- Coding:
Scenario 3: Pterygium Reconstruction Denial Prevention
- Documentation: “Recurrent, aggressive double-headed pterygium, left eye. The pterygium was excised extensively. Due to the massive bare scleral defect, a multi-layered amniotic membrane was sutured over the area for surface reconstruction.”
- Coding:
- CPT: 65426-LT
- ICD-10: H11.052 (Recurrent pterygium, left eye)
- Explanation: Even though multiple layers of amniotic membrane were used, the primary procedure was the excision of a pterygium. Billing 65780 here will result in a denial or an audit risk. The correct code is 65426 (Excision with graft), as the CPT descriptor for 65426 encompasses whatever graft material is used to fill the pterygium defect.