Diagnosis of Idiopathic Environmental Intolerance — Laboratory Testing and Reimbursement
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This policy governs reimbursement for laboratory tests related to diagnosis and evaluation of idiopathic environmental intolerance; plan documents may further limit coverage and not all requirements apply to every product.
Reimbursement Information items #2 and #3 were reworded from 'In all circumstances' to 'For asymptomatic individuals and/or during general encounters without abnormal findings'.
Items #4, #5, #6, and #8 in Reimbursement Information were edited for consistency.
Breath hydrogen and/or breath methane testing was clarified to be not reimbursable under any circumstances (item #7).
The Reimbursement Policy section was removed during the update.
Coverage Criteria and Non-Reimbursable Tests
Non-reimbursable tests and test categories
Not reimbursable when the following conditions apply:
Procedure Codes and Coding Guidance
Provider Responsibilities and Reimbursement Restrictions
Documentation and Claim Review Responsibilities
Providers are responsible for submission of accurate documentation of services performed. Providers are expected to submit claims using valid code combinations from HIPAA-approved code sets and to follow industry-standard coding guidelines (e.g., UB, AMA CPT, HCPCS, ICD-10-CM/PCS, NDCs, DRG, CMS NCCI). Claims are subject to code edit protocols and may be reviewed against benefit terms, provider contract language, medical policies, clinical payment and coding policies, and coding software logic. Upon request, the provider must submit additional documentation to support medical necessity and coding. Failure to provide requested documentation may result in claim denial or recoupment.
- Submit complete medical records and test reports when requested
- Code claims per current CPT/HCPCS/ICD-10 guidance and payer-specific rules
- Claims are subject to retrospective review and recovery if documentation does not support billed services
Reimbursement Restrictions and Prior Authorization Implications
Prior authorization and plan coverage determinations govern reimbursement. Providers should verify member benefits and any prior authorization requirements before ordering tests. Tests explicitly described as not reimbursable in this policy will be denied regardless of diagnosis when billed for asymptomatic individuals or general encounters without abnormal findings (see list).
- Not reimbursable for asymptomatic individuals and/or general encounters without abnormal findings: volatile solvents, organic acids, organophosphates, phthalates, parabens, chlorinated pesticides (including DDE/DDT), carnitine/oxidative stress/detoxification/methylation/lipoic acid/CoQ10/intestinal hyperpermeability testing, vitamin/mineral/nutritional analysis, and testing for metals in blood/serum/plasma/saliva/urine/cerebrospinal fluid/fingernails/hair/stool
- Breath hydrogen and/or breath methane testing is not reimbursable under any circumstances
- Confirm prior authorization and benefit coverage in the member's plan documents; provider contract or plan document controls if conflicts arise
Key Definitions
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