Genetic Testing: Aortopathies and Connective Tissue Disorders — Coverage Criteria
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Defines medical necessity criteria for genetic and multigene panel testing to diagnose or confirm hereditary aortopathies and connective tissue disorders for members of the health plan; applies to providers ordering genetic testing for these conditions.
Updated background, references, and added GeneReviews content for FBN1-related Marfan syndrome and other HTAD genes; replaced 'coverage criteria' language with 'criteria'.
For Other Covered Connective Tissue Disorders, removed CPT codes 81411 and 81410 and adjusted listed codes for testing.
Updated title to reflect V1.2024 and later V2.2024/V1.2025 versions with multiple content and coding updates.
Moved Known Familial Variant Analysis criteria to the general genetic testing policy to consolidate known familial variant test criteria.
Removed minimum gene lists for some multigene panels (e.g., Loeys-Dietz, TAAD) and expanded/modified gene lists for others (e.g., cEDS, FBN1 criteria).
Clarified that COL3A1 sequencing and targeted resequencing (including CNV detection) are indicated to verify vEDS when clinical features suggest vEDS.
Coverage Criteria and Disorder-Specific Testing
Comprehensive Connective Tissue Disorders Multigene Panel
Covered when the enrollee meets criteria for at least one of the listed disorders.
Comprehensive panel codes 81410, 81411; panels are investigational for other indications including isolated hypermobility and hEDS
FBN1 Sequencing and/or Deletion/Duplication Analysis
Covered when ANY of A or B criteria are met.
Codes 81408, 81479; investigational for other indications
Loeys-Dietz Syndrome Multigene Panel
Covered when the enrollee meets at least two listed features.
Codes 81405, 81408, 81479; if both aortic root enlargement and ectopia lentis are present, FBN1 should be included in the panel or previously tested
Familial Thoracic Aortic Aneurysm and Dissection (TAAD) Multigene Panel
Covered when ALL of the following are met.
Codes 81405, 81406, 81408, 81410, 81411, 81479; multigene HTAD panels per GeneReviews are recommended
Classic Ehlers-Danlos Syndrome (cEDS) Multigene Panel
Covered when ALL of the following are met.
Codes 81408, 81479; investigational for other indications including isolated hypermobility and hEDS
COL3A1 Sequencing and/or Deletion/Duplication Analysis (vEDS)
Covered when ANY of the listed major criteria or ≥1 listed family/combination criteria are met.
Code 81479; investigational for other indications including isolated hypermobility and hEDS; if sequencing is negative, complement with CNV testing
Diagnostic genetic testing — medically necessary criteria
Covered when ALL of the following are met for diagnostic genetic testing to establish or confirm specific connective tissue or heritable thoracic aortic disease (HTAD) diagnoses:
See disorder-specific criteria (Marfan, LDS, TAAD, cEDS, vEDS)
Specific gene lists per disorder and GeneReviews Table 1 guide panel composition
GeneReviews guidance; aortic size should be standardized to age/body size
Per Heritable Thoracic Aortic Disease GeneReviews and professional guidance
Molecular testing for vascular Ehlers-Danlos syndrome (vEDS)
Covered when clinical features suggest vEDS and molecular confirmation is required.
Use Sanger sequencing of COL3A1 or targeted panel including COL3A1 ± COL1A1; if sequencing is negative, perform CNV detection to identify large deletions/duplications
Genetic testing (either single-gene or multigene panels) for isolated joint hypermobility and for hypermobile Ehlers–Danlos syndrome (hEDS) is considered investigational and not covered when ordered solely for those indications. The policy specifies that comprehensive connective tissue disorder panels (codes 81410, 81411) are medically necessary only when the enrollee meets criteria for at least one of the listed disorders (Marfan syndrome, Loeys–Dietz syndrome, classic EDS, or vascular EDS) and are investigational for other indications including isolated hypermobility and hEDS.
Genetic testing solely to evaluate for hEDS is not appropriate because, per GeneReviews cited in the policy, hEDS is diagnosed based on clinical evaluation and family history and the causative gene(s) are currently unknown; therefore testing for hEDS alone is considered investigational/not medically necessary.
The policy states explicitly that genetic testing is not appropriate when requested solely to evaluate for hypermobile Ehlers–Danlos syndrome (hEDS). This statement follows GeneReviews guidance indicating that hEDS is diagnosed clinically (personal and family history) and that the responsible gene(s) have not been identified; accordingly, molecular genetic testing for the sole purpose of assessing hEDS is not appropriate or supported.
Operational revisions to the policy removed several previously listed minimum gene-list requirements and edited the policy reference table. As part of the semi‑annual reviews (noted in the revision history), the policy replaced some prior minimum gene-list panel language, removed certain comprehensive EDS panel listings, and adjusted CPT/code listings to reference individual codes rather than older grouped code ranges. These edits are documented in the revision entries for V1.2024 and later updates.
Any genetic testing that does not meet the disorder‑specific criteria described in this policy is considered investigational and may be denied. That includes panels or single‑gene tests ordered for indications outside the listed, syndrome‑specific clinical criteria (for example, testing for isolated hypermobility or testing that lacks the required clinical documentation supporting a covered indication).
Molecular genetic testing performed solely to evaluate for hEDS is considered not appropriate and therefore not medically necessary. The policy reiterates GeneReviews guidance that hEDS is a clinical diagnosis and that causative gene(s) are currently unknown; requests for genetic testing with the exclusive intent of diagnosing hEDS should not be approved.
Specific prior minimum gene‑list panel configurations that were previously specified in the policy have been removed and are no longer the primary determinants of coverage. The revision history notes removal of prior minimum gene lists for multiple multigene panels (for example, Loeys–Dietz and TAAD) and replacement of some comprehensive panel language; tests or panel configurations that do not align with the updated policy reference table may not be covered as they were under prior versions.
Diagnostic genetic testing to establish or confirm a diagnosis of Marfan, Loeys-Dietz, TAAD, cEDS, or vEDS when specified clinical criteria are met
Diagnostic genetic testing to establish or confirm a diagnosis of Marfan syndrome, Loeys-Dietz syndrome, Familial TAAD, classic Ehlers-Danlos syndrome (cEDS), or vascular Ehlers-Danlos syndrome (vEDS) when specified clinical criteria are met.
See the individual criterion blocks for each disorder (FBN1, LDS genes, TAAD gene sets, COL5A1/COL5A2, COL3A1)
Establishing or confirming diagnosis of specified connective tissue disorders when clinical features and/or family history are present
Establishing or confirming diagnosis of specified connective tissue disorders when clinical features and/or family history are present.
Family history requirements vary by disorder (eg, LDS allows a first-degree relative; TAAD requires autosomal dominant-pattern family history; vEDS allows close relative with clinical vEDS)
Individuals with clinical features suggestive of vEDS
Individuals with clinical features suggestive of vEDS: criteria for molecular confirmation via COL3A1 sequencing (± COL1A1) and CNV testing.
Verify by Sanger sequencing of COL3A1 or targeted panel including COL3A1 ± COL1A1; if no variant is found, perform CNV detection for large deletions/duplications
Provider Actions, Documentation, and Prior Authorization
Prior authorization required for listed CPT codes
Prior authorization is required for the listed multigene panel and single-gene CPT codes and coverage is limited to clinically indicated situations per the disorder-specific criteria.
Prior authorization for genetic panels is subject to coverage review
Genetic testing for the listed connective tissue disorders and heritable thoracic aortic disease (HTAD)—whether single-gene or multigene panels—is subject to coverage criteria and may require prior authorization per the payer's General Approach to Genetic and Molecular Testing.
- Panel testing should be guided by phenotype and GeneReviews/ACMG guidance.
- Multigene panels are recommended where phenotype/family history suggest HTAD (see GeneReviews Table 1).
Coding updates affect prior authorization
Certain multigene panel and single-gene tests in the coding/reference table were modified (individual CPTs listed rather than ranges); prior authorization requirements follow the policy's updated coding/reference table.
- Policy edits removed some prior grouped codes and replaced them with specific CPT listings—prior authorization must reference the current coding table.
- Providers should confirm the exact CPT code(s) submitted match the policy's coding list to ensure appropriate prior auth processing.
Operational and policy-change reminder (provider impact)
Providers should note policy updates may change coverage and authorization procedures; consult the current policy and payer resources for operational changes.
Panel‑first approach recommended (informational)
Multigene panels are recommended as a first‑line approach in many clinical scenarios where phenotype and family history suggest a hereditary connective tissue disorder or HTAD, consistent with GeneReviews and guideline recommendations (informational only).
- GeneReviews and ACMG guidance support use of multigene panels rather than serial single‑gene testing when clinical findings suggest disorders such as LDS or HTAD.
- This is informational and does not replace disorder‑specific medical necessity criteria in the policy.
Confirm current panel content and coding before ordering
Providers should verify coding and criteria details against the current policy when ordering, as prior panel configurations and minimum gene lists were revised; confirm test content meets policy expectations.
Document aortic root Z‑score, ectopia lentis, or systemic score for Marfan (FBN1) testing
For FBN1 testing to confirm Marfan syndrome, documentation must support aortic root enlargement (Z‑score ≥2) or dissection, ectopia lentis, or a systemic score ≥7 using the policy's listed systemic features.
- Aortic root enlargement is defined as a Z‑score ≥2, standardized to age and body size.
- If systemic score pathway is used, document the component features and point totals per the policy (≥7 required).
Document ≥2 LDS clinical features or qualifying family history
Documentation for Loeys‑Dietz testing must show the member meets at least two listed clinical features OR has a first‑degree relative with a clinical diagnosis of LDS.
- List qualifying features (e.g., characteristic facial features, bifid uvula/cleft palate, arterial tortuosity, aortic dilatation/dissection, joint hypermobility).
- If family history is used, document relation (first‑degree) and the relative's clinical diagnosis.
Document clinical aortic disease and AD family history for TAAD panels
For TAAD multigene panel coverage, document a history of aortic root enlargement, thoracic aneurysm, or type A/B aortic dissection, absence of diagnostic criteria for another connective tissue disorder, and a family history of dilation/dissection consistent with autosomal dominant inheritance.
- Include imaging or surgical reports documenting aortic enlargement/aneurysm/dissection.
- Document family history details consistent with autosomal dominant inheritance.
Document cEDS clinical features and panel gene content (COL5A1/COL5A2)
For classic EDS (cEDS) panel coverage, document skin hyperextensibility with atrophic scarring plus either generalized joint hypermobility or at least three listed supportive features, and confirm the panel includes at minimum COL5A1 and COL5A2.
- Supportive features include easy bruising, soft doughy skin, skin fragility, molluscoid pseudotumors, subcutaneous spheroids, hernia, epicanthal folds, complications of joint hypermobility, or first‑degree relative with clinical cEDS.
- Confirm test includes COL5A1 and COL5A2 in report or test order.
Document major/minor criteria or family history for vEDS (COL3A1) testing
For COL3A1 testing to evaluate vEDS, documentation must show one major criterion (e.g., arterial rupture/dissection <40 years, spontaneous sigmoid colon perforation, third‑trimester uterine rupture without prior C‑section, CCSF without trauma) or two or more minor criteria, or a close relative with clinical vEDS.
- Major features include arterial rupture/dissection <40 years, spontaneous sigmoid colon perforation, uterine rupture in third trimester without prior C‑section, or carotid‑cavernous sinus fistula without trauma.
- Minor features encompass bruising, thin translucent skin, characteristic facial appearance, spontaneous pneumothorax, tendon/muscle rupture, keratoconus, gingival fragility, early varicose veins, etc.
Provide clinical features and family history to support testing requests
Providers should include clinical details that support the requested genetic test: aortic root Z‑score, presence/absence of ectopia lentis, systemic score components, family history specifics, and major/minor criteria for EDS subtypes as relevant.
- Attach imaging, ophthalmology, surgical, or genetic family history documentation to the prior authorization or test order.
- Document rationale for single‑gene versus multigene panel selection based on phenotype and GeneReviews/ACMG guidance.
Include vEDS‑specific presenting features and plan for CNV testing when indicated
For vEDS testing specifically, include documentation of presenting features suggestive of vEDS (family history, arterial rupture/dissection <40 years, unexplained sigmoid colon rupture, spontaneous pneumothorax with other vEDS features) and the rationale for molecular testing of COL3A1 (and COL1A1 when relevant).
- If sequencing is negative, document plan or performance of CNV detection (deletion/duplication) to identify large deletions/duplications.
- Note that diagnosis rests on identification of a causative variant in one allele of COL3A1.
Indications outside specified criteria may be denied as investigational
Multigene panels and single‑gene tests performed for indications outside the policy's disorder‑specific medical necessity criteria (for example isolated hypermobility or evaluation solely for hEDS) are considered investigational and may be denied.
- hEDS is diagnosed clinically and genetic testing solely for hEDS is not appropriate per GeneReviews.
- Panel requests for indications not supported by the policy should be expected to be denied as investigational.
Testing outside disorder‑specific criteria may be denied
Testing performed outside the specified medical necessity criteria for each disorder (single‑gene or panel) may be denied as investigational; ensure requests meet the gene‑ or syndrome‑specific coverage nodes before ordering.
- Confirm the enrollee meets at least one qualifying node for the disorder being tested (e.g., Marfan, LDS, TAAD, cEDS, vEDS).
- Requests lacking documented criteria are at risk of denial.
Genetic testing solely for hEDS is not appropriate
Requests for genetic testing solely to evaluate for hypermobile Ehlers‑Danlos syndrome (hEDS) are not appropriate and may be denied because hEDS is diagnosed clinically and causative genes are currently unknown.
- Do not order genetic testing solely to evaluate hEDS; document alternative reasons if testing is requested (e.g., suspicion for another EDS subtype).
Missing vEDS clinical indication or complementary testing risks denial
Failure to document clinical features suggestive of vEDS (e.g., family history, arterial rupture/dissection <40 years, unexplained sigmoid colon rupture, spontaneous pneumothorax with other vEDS features) or failure to order appropriate COL3A1 sequencing and complementary CNV testing when indicated may lead to denial.
- Document major/minor criteria or family history when requesting COL3A1 testing.
- If sequencing is negative, document CNV testing or plan to perform deletion/duplication analysis.
Order testing in appropriate clinical context per GeneReviews/ACMG
Order genetic testing in the context of appropriate clinical evaluation and counseling per GeneReviews and ACMG recommendations; testing should be performed when clinical features and family history meet the policy criteria.
- GeneReviews and ACMG guidance support phenotype‑driven test selection and inform panel composition.
- Include pre‑test counseling as implied by guidance given testing implications for treatment and family recurrence risk.
Provide or document genetic counseling when ordering/testing
Given implications for treatment, natural history, and recurrence risk, provide or document genetic counseling (pre‑ and/or post‑test) when ordering testing, as implied by GeneReviews and ACMG references.
- Counseling is implied though not explicitly mandated in the policy; document that counseling was provided or offered in the medical record or prior auth submission.
- Consider referral to genetics specialists when available.
Order testing following evaluation by experienced providers
Order testing only after appropriate clinical evaluation by providers experienced in diagnosing connective tissue disorders; the policy expects professional judgment in selection of single‑gene versus panel testing.
- Document the evaluating provider's specialty or clinical rationale when relevant.
- Policy does not prescribe which specialties may order testing; providers are expected to use clinical judgment.
Policy does not replace clinical judgment — providers must use professional judgment
Providers are expected to exercise professional medical judgment; the policy is guidance and does not replace clinician judgment when deciding to order genetic testing.
Coding and Billing References
| 81410 | Comprehensive connective tissue disorders multigene panel |
| 81411 | Comprehensive connective tissue disorders multigene panel (add-on) |
| 81408 | FBN1 sequencing and/or deletion/duplication analysis |
| 81479 | Unlisted molecular pathology procedure (used for some single-gene tests in document) |
| 81405 | Targeted multigene panel (used for LDS, TAAD panels) |
| 81406 | Targeted multigene panel (TAAD) |
| 81400 | Molecular genetics procedure (other covered connective tissue disorders) |
| 81401 | Molecular genetics procedure |
| 81402 | Molecular genetics procedure |
| 81403 | Molecular genetics procedure |
| I71.00-I71.9 | Aortic aneurysm and dissection ICD-10 range (used as example ICD codes) |
| M35.7 | Systemic involvement notation (example ICD) |
| Q79.60 | Congenital musculoskeletal anomalies (example ICD) |
| Q79.61 | Congenital musculoskeletal anomalies (example ICD) |
| Q79.63 | Congenital musculoskeletal anomalies (example ICD) |
| Q79.69 | Congenital musculoskeletal anomalies (example ICD) |
| Q12.1 | Congenital malformation of unspecified bone (example ICD) |
| Q87.4 | Other congenital malformation syndromes predominantly affecting limbs (example ICD) |
| Q87.5 | Other congenital malformation syndromes predominantly affecting connective tissue (example ICD) |
| M35.7 | Systemic involvement (repeated example ICD) |
| 81400 | Genomic sequencing procedure, 1-10 kb |
| 81401 | Genomic sequencing procedure, 10-100 kb |
| 81402 | Genomic sequencing procedure, 100-500 kb |
| 81403 | Genomic sequencing procedure, 500 kb-1 Mb |
| 81404 | Genetic test panel, multiple genes (unspecified) |
| 81405 | Targeted sequence analysis |
| 81406 | Targeted sequence analysis, multiple regions |
| 81407 | Deletion/duplication analysis |
| 81408 | Duplication/deletion testing, larger panels |
Tests and Indications Not Covered
Testing solely to evaluate for hypermobile Ehlers–Danlos syndrome (hEDS) and testing for isolated hypermobility are specifically listed as not covered. The policy marks panels and single‑gene testing for these indications as investigational given the lack of known causative genes for hEDS and GeneReviews guidance that hEDS diagnosis is clinical rather than genetic.
The policy explicitly states that genetic testing solely for hypermobile Ehlers–Danlos syndrome (hEDS) is not covered because the causative gene(s) for hEDS are currently unknown and hEDS is diagnosed on clinical grounds and family history per GeneReviews.
Certain previously specified minimum‑gene‑list panels and older CPT groupings were removed from the policy reference table during revisions. The revision history documents removal of prior minimum gene lists for several multigene panels and changes to how panel CPTs are listed (individual codes rather than ranges); these removed configurations are no longer supported as primary coverage criteria under the updated policy.
Definitions and Key Terms
Background and Clinical Context
Hereditary connective tissue disorders commonly affect multiple organ systems and frequently present with joint hypermobility and cardiovascular manifestations such as thoracic aortic aneurysm and dissection. Clinical diagnosis can be challenging; when a genetic cause is known and supported by the policy's syndrome‑specific criteria, genetic testing can establish a diagnosis that affects management (for example, aortic surveillance and surgical decision‑making). The policy emphasizes that hEDS is a clinical diagnosis and that molecular testing is not appropriate for hEDS alone.
Covered Indications Summary
Diagnostic genetic testing to establish or confirm a diagnosis of Marfan, Loeys-Dietz, TAAD, cEDS, or vEDS when specified clinical criteria are met (summary)
Summary: Diagnostic genetic testing to establish or confirm Marfan, Loeys-Dietz, TAAD, cEDS, or vEDS when disorder-specific clinical criteria are met.
Panels and single-gene tests use CPT codes listed in the policy; testing solely for hEDS or isolated hypermobility is investigational
Establishing or confirming diagnosis of specified connective tissue disorders when clinical features and/or family history are present
Establishing or confirming diagnosis of specified connective tissue disorders when clinical features and/or family history are present.
Providers should document clinical features and rationale for ordered test; family history definitions include first- through third-degree relatives
vEDS-specific covered indications — individuals with clinical features suggestive of vEDS requiring molecular confirmation
vEDS-specific covered indications — individuals with clinical features suggestive of vEDS requiring molecular confirmation.
Use Sanger sequencing of COL3A1 or targeted panel including COL3A1 ± COL1A1; if sequencing is negative, perform CNV detection to identify deletions/duplications
Revision History and Policy Changes
Policy developed and semi-annual review; title updated to V1.2024; background, coding reference table, and references updated; replaced phrase 'coverage criteria' with 'criteria'; removed 'Comprehensive Ehlers-Danlos Syndrome Multigene Panels' from policy reference table and removed CPT codes 81411 and 81410 from Other Covered Connective Tissue Disorders listing.
Moved Known Familial Variant Analysis criteria to the general genetic testing policy to consolidate familial variant test criteria; expanded FBN1 criteria to better align with guidelines and cover individuals with clinical Marfan diagnosis.
Removed minimum gene lists for Loeys-Dietz and TAAD panels; expanded cEDS gene list and removed COL1A1 from minimum list; updated coding reference table to list individual CPT codes rather than ranges and made minor wording clarifications across criteria.
Semi-annual review and updated title to V1.2025; removed older ACMG reference for FBN1 as outdated; updated Background and Rationale with GeneReviews language regarding COL5A1/COL5A2 sequencing and removed prior recommended diagnostic wording for TAAD.
Change log highlights: semi‑annual reviews resulted in title updates (V1.2024, V2.2024, V1.2025), background and references updates, and replacement of some prior 'coverage criteria' wording with 'criteria'. The policy removed certain previously recommended minimum gene lists for panels (e.g., Loeys–Dietz and TAAD) and adjusted panel and CPT references (removing grouped CPT listings and listing individual CPTs). In addition, Known Familial Variant Analysis criteria were relocated to the general genetic testing policy for consolidation. These revisions are recorded in the policy's revision history entries.
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