Humana Allograft Transplantation of the Knee Form
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Description
This policy focuses on reconstruction of the meniscus and ligament structures of the
knee. For information regarding articular cartilage and/or subchondral bone
damage and repair with transplantation, please refer to Osteochondral and
Subchondral Defects Surgery Medical Coverage Policy.
Allografts may be used as an alternative to autografts for ligament reconstruction or
meniscal transplantation of the knee. Allograft tissue is procured from genetically
unrelated cadaver donors and processed, stored and utilized according to US Food
& Drug Administration (FDA) and the American Association of Tissue Banks (AATB)
standards. The advantages of allografts include no donor site morbidity, shorter
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 2 of 10
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surgical time, smaller incisions and greater availability.7 Allograft transplants are not
rejected by the body as with other organ transplants.
Knee Ligaments
Reconstruction with allograft tendons may be performed for the anterior cruciate
ligament (ACL), posterior cruciate ligament (PCL), medial or lateral collateral
ligaments (MCL, LCL). These ligaments are strong fibrous bands of tissue that attach
to the femur, fibula patella and tibia bones providing strength and stability to the
joint. Allografts are commonly used for ACL reconstruction.17
Resorbable implant for ACL repair is a resorbable implant made of degradable
material (bovine collagen) that allows healing of a torn ACL biomechanically
stabilized by traditional suturing procedures at the torn ends of the tendon.
Purportedly, the implant acts like a bridge scaffold. After suture stabilization, the
individual’s blood is injected into the implant to form a protective clot to stimulate
tissue healing to eventually replace the device. The device is intended to protect the
biological healing process from the surrounding intraarticular environment and not
intended to replace biomechanical fixation via suturing. As the ACL heals, the
implant is absorbed by the body, within approximately 8 weeks. An example of an
FDA-approved ACL resorbable implant is the BEAR (Bridge-Enhanced ACL Repair).
10,20 (Refer to Coverage Limitations section)
Meniscus
Meniscal allograft transplantation (MAT) is a surgical technique for restoring knee
function for an individual with a destroyed or absent menisci. The meniscus (or
menisci) refers to the lateral and medial crescent shaped cartilaginous tissues that
are located at the junction of the tibia and femur which provide structural integrity
to the knee and absorbs shock. Allograft tissue is matched by size to the individual,
inserted into the knee joint and anchored to supporting structures by hardware, soft
tissue or bony tissue fixation. The procedure may be performed using an
arthroscopic approach or by open incision and may be done alone or in tandem with
other reconstructive knee procedures.
Collagen meniscus implants (CMI), also known as collagen scaffolds or Menaflex,
are implantable porous meniscus scaffolds composed of collagen fibers, enriched
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 3 of 10
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this is the current version before utilizing.
with glycosaminoglycan, used as a template and support for generation of new
tissue to replace the lost menisci. An example of an FDA-approved CMI is the
Collagen Meniscus Implant XL.9,15 (Refer to Coverage Limitations section)
For information regarding bone graft materials, please refer to Bone Graft
Substitutes Medical Coverage Policy.
For information regarding autograft reconstruction and knee arthroscopy, please
refer to Hip, Knee and Shoulder Arthroscopic Surgeries Medical Coverage Policy.
Coverage
Determination
Humana members may be eligible under the Plan for reconstruction of the knee
ligaments using allograft tissue when ANY of the following criteria are met:
• Existence of a medical condition that prevents the use of autograft tissue (eg,
previous injury or surgery, anatomic abnormality); OR
• Failed reconstruction or revision of a previous surgery; OR
• Multiple ligament reconstruction
Humana members may be eligible under the Plan for MAT when ALL of the
following criteria are met:
• Absence or near absence of the meniscus as documented by magnetic resonance
imaging (MRI) or prior arthroscopy; AND
• 50 years of age or younger; AND
• Body mass index (BMI) less than or equal to 40; AND
• Documentation of absent or minimal articular changes (Outerbridge grade II or
less); AND
• Knee joint must be stable prior to surgery or be surgically corrected at the time
of the allograft; AND
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 4 of 10
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not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
• Normal knee alignment; AND
• Significant knee pain with functional impairment interfering with activities of
daily living (ADLs) (eg, dressing, driving, meal prep, walking) unresponsive to 3
months of conservative treatment* under the direction of a healthcare
professional with ALL of the following:
o Intra-articular steroid injection for individual with minimal articular changes
(Outerbridge grade II or I) if medically appropriate and not contraindicated.
Intra-articular steroid injections should be avoided absent of articular changes
or 3 months prior to planned meniscal surgery; AND
o Modification of pain inducing activities; AND
o Nonsteroidal anti-inflammatory drugs (NSAIDs) if medically appropriate and
not contraindicated; AND
o Orthotics (knee brace) if medically appropriate; AND
o Physical therapy including a home exercise program (HEP)
*Failure of conservative treatment is not required in active infections or acute
trauma with functional loss (effusion, focal tenderness, inability to bear weight,
symptoms explained by radiographic findings [eg, fracture, soft tissue injury] or a
visual deformity [eg, dislocation]).
Functional impairment is defined as a direct and measurable reduction in physical
performance of an organ or body part.
Coverage
Limitations
Humana members may NOT be eligible under the Plan for reconstruction of the
knee ligaments using allograft tissue or meniscal allograft transplantation for any
indications other than those listed above. These are considered experimental/
investigational as they are not identified as widely used and generally accepted for
any other proposed uses as reported in nationally recognized peer reviewed medical
literature published in the English language.
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 5 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
Humana members may NOT be eligible under the Plan for ANY of the following
when used alone or as part of a ligament or meniscus reconstruction, regeneration
or transplantation:
• Autologous platelet derived growth factors (eg, platelet rich plasma), (for
information regarding coverage determination/limitations, please refer to Bone
Graft Substitutes or Platelet-Derived Growth Factors for Wound Healing Medical
Coverage Policies); OR
• Collagen scaffolds (eg, BEAR [bridge enhanced ACL repair], Collagen Meniscus
Implant XL, Menaflex); OR
• Meniscal prosthesis; OR
• Tissue engineered menisci; OR
• Xenograft
These are considered experimental/investigational as they are not identified as
widely used and generally accepted for the proposed uses as reported in nationally
recognized peer-reviewed medical literature published in the English language.
Note: The criteria for collagen meniscus implants are consistent with the Medicare
National Coverage Policy and therefore apply to Medicare members.
Background
Additional information about injuries to the ligaments of the knee and the
meniscus may be found from the following websites:
• American Academy of Orthopaedic Surgeons
• National Library of Medicine
Medical
Alternatives
Alternatives to reconstruction of the knee ligaments using allograft tissue include,
but may not be limited to, the following:
• Reconstruction of the knee ligaments using autograft tissue
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 6 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
Alternatives to MAT include, but may not be limited to, the following:
• Meniscal and ligament repair
• Meniscectomy
Physician consultation is advised to make an informed decision based on an
individual’s health needs.
Provider Claims
Codes
Any CPT, HCPCS or ICD codes listed on this medical coverage policy are for
informational purposes only. Do not rely on the accuracy and inclusion of specific
codes. Inclusion of a code does not guarantee coverage and or reimbursement for a
service or procedure.
CPT®
Code(s)
27427
27428
27429
Description
Comments
Ligamentous reconstruction (augmentation), knee; extra-
articular
Ligamentous reconstruction (augmentation), knee; intra-
articular (open)
Ligamentous reconstruction (augmentation), knee; intra-
articular (open) and extra-articular
27599
Unlisted procedure, femur or knee
Not Covered if used to
report any procedure
outlined in Coverage
Limitations section
Arthroscopy, knee, surgical; meniscal transplantation (includes
arthrotomy for meniscal insertion), medial or lateral
Arthroscopically aided anterior cruciate ligament
repair/augmentation or reconstruction
Arthroscopically aided posterior cruciate ligament
repair/augmentation or reconstruction
Description
Comments
29868
29888
29889
CPT®
Category
III Code(s)
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 7 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
No code(s) identified
HCPCS
Code(s)
G0428
Description
Collagen meniscus implant procedure for filling meniscal
defects (e.g., CMI, collagen scaffold, Menaflex)
Comments
Not Covered
References
1.
American Academy of Orthopaedic Surgeons (AAOS). Evidenced-based clinical
practice guideline: management of anterior cruciate ligament injuries.
https://www.aaos.org. Published August 22, 2022. Accessed December 5,
2022.
2.
3.
4.
5.
6.
Centers for Medicare & Medicaid Services (CMS). National Coverage
Determination (NCD). Collagen meniscus implant (150.12).
https://www.cms.gov. Published May 25, 2010. Accessed December 5, 2022.
ClinicalKey. Cheung E, McAllister D, Petrigerani F. Anterior cruciate ligament
injuries. In: DeLee JC, Drez D, Miller MD. DeLee, Drez, & Miller’s Orthopaedics
Sports Medicine. 5th ed. Elsevier; 2020:1185-1198.e7.
https://www.clinicalkey.com. Accessed December 5, 2022.
ClinicalKey. Laidlaw M, Buyukdogan K, Miller M. Articular cartilage lesions. In:
DeLee JC, Drez D, Miller M. DeLee, Drez, & Miller’s Orthopaedics Sports
Medicine. 5th ed. Elsevier; 2020:1161-1177.e4. https://www.clinicalkey.com.
Accessed December 5, 2022.
ClinicalKey. Miller III RH, Azar FM. Knee injuries. In: Azar F, Beaty JH.
Campbell’s Operative Orthopaedics. 14th ed. Elsevier; 2021:2198-2373.e18.
https://www.clinicalkey.com. Accessed December 6, 2022.
ClinicalKey. Phillips BB, Mihalko M. Arthroscopy of the lower extremity. In:
Azar F, Beaty JH. Campbell’s Operative Orthopaedics. 14th ed. Elsevier;
2021:2576-2662.e8. https://www.clinicalkey.com. Accessed December 6,
2022.
7.
ClinicalKey. Ruzbarsky J, Maak T, Rodeo S. Meniscal injuries. In: DeLee JC, Drez
D, Miller M. DeLee, Drez, & Miller’s Orthopaedics Sports Medicine. 5th ed.
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 8 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
Elsevier; 2020:1132-1153.e6. https://www.clinicalkey.com. Accessed
December 5, 2022.
8.
9.
ClinicalKey. Wydra F, Axibal D, Vidal A. Meniscal transplantation. In: DeLee JC,
Drez D, Miller M. DeLee, Drez, & Miller’s Orthopaedics Sports Medicine. 5th ed.
Elsevier; 2020:1154-1160.e1. https://www.clinicalkey.com. Accessed
December 5, 2022.
ECRI Institute. Product Brief (ARCHIVED). Collagen meniscus implant XL
(Stryker Corp.) for treating medial meniscus injuries. https://www.ecri.org.
Published December 31, 2018. Accessed December 16, 2021.
10. Hayes, Inc. Emerging Technology Report (ARCHIVED). Bridge enhanced
anterior cruciate ligament repair (BEAR) implant.
https://evidence.hayesinc.com. Published December 20, 2020. Accessed
December 13, 2022.
11. Hayes, Inc. Health Technology Brief (ARCHIVED). Collagen meniscus implant
(CMI, Menaflex; Ivy Sports Medicine LLC) for meniscal tears.
https://evidence.hayesinc.com. Published February 16, 2017. Updated January
9, 2019. Accessed December 12, 2022.
12. Hayes, Inc. Medical Technology Directory. Comparative effectiveness of
irradiated allografts for primary anterior cruciate ligament reconstruction.
https://evidence.hayesinc.com. Published March 6, 2018. Updated February
16, 2022. Accessed December 13, 2022.
13. Hayes, Inc. Medical Technology Directory (ARCHIVED). Comparative
effectiveness of nonirradiated allografts for primary anterior cruciate ligament
reconstruction. https://evidence.hayesinc.com. Published November 7, 2017.
Updated March 18, 2021. Accessed December 13, 2022.
14. Hayes, Inc. Medical Technology Directory (ARCHIVED). Meniscal allograft
transplantation. https://evidence.hayesinc.com. Published December 28,
2011. Updated November 5, 2015. Accessed December 12, 2022.
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 9 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
15. MCG Health. Collagen meniscus implant. 26th edition. https://www.mcg.com.
Accessed December 12, 2022.
16. MCG Health. Meniscal allograft transplant. 26th edition.
https://www.mcg.com. Accessed December 12, 2022.
17. UpToDate, Inc. Anterior cruciate ligament injury. https://www.uptodate.com.
Updated December 8, 2022. Accessed December 13, 2022.
18. UpToDate, Inc. Meniscal injury of the knee. https://www.uptodate.com.
Updated November 14, 2022. Accessed December 13, 2022.
19. US Food & Drug Administration (FDA). 510(k) summary: Ivy Sports Medicine
Collagen Meniscus Implant XL (CMI XL). https://www.fda.gov. Published May
2, 2017. Accessed December 28, 2021.
20. US Food & Drug Administration (FDA). De novo summary: BEAR (Bridge-
Enhanced ACL Repair) implant. https://www.fda.gov. Published December 16,
2020. Accessed December 27, 2021.
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.
Allograft Transplantation of the Knee
Effective Date: 02/02/2023
Revision Date: 02/02/2023
Review Date: 02/02/2023
Policy Number: HUM-0453-017
Page: 10 of 10
Humana's documents are updated regularly online. When printed, the version of this document becomes uncontrolled. Do
not rely on printed copies for the most up-to-date version. Refer to Medical and Pharmacy Coverage Policies to verify that
this is the current version before utilizing.
Appendix A
Outerbridge classification system4
Grade
Grade 0
Grade I
Grade II
Grade III
Grade IV
Chondral Damage
Normal cartilage
Cartilage with swelling and softening
Partial thickness defect with fissures on the surface that do not reach subchondral
bone or exceed 1.5 centimeters (cm) in diameter
Fissuring to the level of subchondral bone in an area with a diameter greater than
1.5 cm
Exposed subchondral bone
See the DISCLAIMER. All Humana member health plan contracts are NOT the same. All legislation/regulations on this subject
may not be included. This document is for informational purposes only.