Bi-Level Positive Airway Pressure (BiPAP) prior authorization request for obstructive sleep apnea
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This form governs prior authorization requests to Blue Cross Blue Shield North Carolina for BiPAP devices to treat obstructive sleep apnea and applies to providers, ordering physicians, vendors, and members seeking rental or purchase after rental.
No material clinical or coverage changes in this revision.
Coverage Criteria for BiPAP
Initial Authorization Criteria
Covered when ALL of the following are met for initiation or continuation:
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Continuation / Purchase Criteria
For purchase after a 3-month rental or continuation beyond first three months, ALL of the following are required:
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Additional One-Month Rental Review Criteria
If compliance requirement not met, additional one-month rental may be reviewed when ALL of the following are provided:
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None explicitly listed as exclusions on the PA form. The form focuses on qualifying criteria for rental, continuation, and purchase rather than enumerating excluded diagnoses or situations.
If the documented sleep-test thresholds, CPAP trial requirement, or rental compliance and re-evaluation conditions are not met, the request will be ineligible for coverage. Incomplete or missing fields on the PA form (for example, absent HCPCS code(s), ordering physician or vendor information, sleep test results, CPAP trial documentation, or compliance records) may delay processing or lead to denial.
Codes, Thresholds, and Usage Metrics
| HCPCS code(s) | HCPCS code(s) (REQUIRED) - specific codes to be entered on form |
| ICD-10 | ICD-10 Code(s) — to be specified on form |
Provider Submission, Documentation, and Review Requirements
Prior Authorization and HCPCS Required
Prior Authorization Required — Submit the completed Bi-Level Positive Airway Pressure (BiPAP) PA request form including all required HCPCS code(s) and supporting clinical documentation. Incomplete or missing PA forms or HCPCS may delay processing.
- HCPCS code(s) (REQUIRED) must be listed on the form
- Attach PA request form when submitting authorization
Required Documentation
Documentation must include ordering physician name, office phone/fax, NPI, member name, member ID, member date of birth, vendor name and vendor contact (phone/fax, NPI), and ICD-10 diagnosis code(s). Include the start date of any rental and whether the request is for rental or purchase after rental.
- Ordering physician details (name, phone, fax, NPI)
- Member identification (name, ID, DOB, contact)
- Vendor name, phone, fax, and NPI
- ICD-10 code(s) and HCPCS code(s)
CPAP Trial Required Before BiPAP
A therapeutic CPAP trial is required and must be documented when requesting BiPAP. Provide documentation that CPAP was tried and proven ineffective based on a therapeutic trial/titration in a facility or home setting prior to approval of BiPAP.
- Document CPAP trial/titration results and reason CPAP was ineffective
Triggers for Denial or Delay
Triggers for denial or processing delay include incomplete or missing required fields on the PA form, absent HCPCS or ICD-10 codes, lack of documentation of a face-to-face clinical evaluation prior to sleep testing, missing sleep test results or AHI/RDI documentation, no documentation of CPAP trial when required, missing vendor education or compliance data, and failure to provide required re-evaluation or compliance downloads. Incomplete information may result in denial or request for additional records.
- Incomplete PA form or missing required fields
- Missing HCPCS code(s) or ICD-10 code(s)
- No documentation of CPAP trial when BiPAP is requested
- Lack of sleep test results showing AHI/RDI thresholds
- Missing vendor instruction or compliance download/re-evaluation documentation
Clinical Background
Obstructive sleep apnea severity is assessed using the Apnea Hypopnea Index (AHI) or Respiratory Disturbance Index (RDI), reported as events per hour on sleep testing. The form uses numeric thresholds to guide medical necessity: AHI/RDI >15 events/hour (minimum 30 events), or AHI/RDI >5 with <14 events/hour (minimum 10 events) plus specified symptoms or comorbidities. These indices, along with documentation of a face-to-face clinical evaluation and a CPAP trial when required, are central to coverage determinations for BiPAP rental or purchase.
Definitions and Measurement Thresholds
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