Bundling Guidelines / Bundling and Incidental Reimbursement Criteria
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Defines Blue Cross NC's bundling guidelines describing when services are considered incidental, mutually exclusive, integral, or within a global period and therefore not separately reimbursable for providers submitting claims to Blue Cross Blue Shield North Carolina.
Added Modifier SA requirement and rendering provider billing requirements for Incident To.
Removed incidental language and replaced with 'mutually exclusive' in Transvaginal Ultrasound section.
Removed code 94662 as deleted; no change to policy intent.
Bundling, Incidental, and Global Period Criteria
inv-01: bundling exclusion criteria
Services considered incidental, mutually exclusive, integral, or within the global period of a primary service are not eligible for additional reimbursement; participating providers cannot balance bill members for these services.
Providers should refer to global period definitions when submitting component claims; out-of-sequence claims may be denied or recoded.
inv-02: Bundling and incidental service rules
Services, supplies, and procedures that are considered integral to a more comprehensive service or included in payment for another service are not eligible for separate reimbursement. Specific examples follow.
inv-03: Bundling / Incidental reimbursement rules
Services, tests, and devices listed below are considered bundled/incidental and are not eligible for separate reimbursement unless an explicit exception is stated.
Lesion procedures
- Lesion biopsy of separate anatomical sites may be allowed in addition to surgical removal and closure.
- Excision of lesions may be reimbursed separately when submitted with intermediate, complex, or reconstructive closures (codes listed); simple repairs (12001–12021) are incidental to excision unless Mohs’ procedure.
inv-04: Bundling criteria
Services and items considered incidental or integral to primary services are not separately reimbursable under BCBSNC bundling guidelines. Examples and specific coding relationships follow.
inv-05: Bundling and incidental reimbursement criteria
Bundling/incident-to rules and reimbursement guidelines detailed across topics; certain services are considered incidental/mutually exclusive and not separately reimbursable.
Code Tables, Global Periods, and Imaging Rules
| 31295-31298 | Balloon sinuplasty codes considered incidental to FESS |
| 38204-38215 | Bone marrow/stem cell service codes considered incidental to 38240-38242 |
| 80047-80081 | Lab panel codes; individual component tests are rebundled into the panel |
| 80047-80081 | Lab panel codes; individual tests that constitute a panel are mutually exclusive to the panel. |
| 36400-36420 | Specimen collection codes considered incidental to E/M, surgical, and laboratory services |
| 36425 | |
| 36600 | |
| 36510 | |
| 36555 | |
| G2023 | |
| G2024 | |
| S9529 | |
| 36591 | Other central venous access procedures for collection considered incidental |
| 36592 | Collection of blood specimen using established central or peripheral catheter considered incidental |
| S2900 | Robotic surgical system technique considered incidental to surgical services; no additional reimbursement. |
Claims Submission, Incident-To Billing, Appeals, and Billing Requirements
Follow current coding and supporting documentation on all claims
All claims must be submitted in accordance with the reporting guidelines and instructions contained in the most current CPT®, HCPCS, and ICD-10-CM publications; use of any code must be fully supported in the medical documentation. Claims are reviewed to determine eligibility for payment using reference guidelines including CPT, the CMS Correct Coding Initiative (CCI), and Medicare guidelines.
Comply with Incident-to billing requirements (Modifier SA, non-facility location, NPI rules)
Incident-to services require an employer relationship between the physician and auxiliary personnel, must be performed in a physician office or other non-facility clinic, and Modifier SA is required. Incident-to billing is not reimbursable in facility places of service, and services provided by clinicians eligible to bill must be submitted under their own NPI with rendering provider information on the claim.
- Modifier SA must be appended for incident-to services.
- Place of service must indicate a physician office or other non-facility clinic.
- Services by clinicians eligible to bill must be billed under their own NPI (not incident-to).
Submit clinical documentation on appeal for different-level lumbar procedures
When laminectomy, facetectomy, or foraminotomy are billed with posterior lumbar fusion, they are generally incidental and bundled; on appeal, clinical information must be submitted if the procedures were performed at different vertebral levels.
- Modifiers 58, 59, 78, 79 (or XE, XS, XP, XU) will not allow additional payment when these procedures are performed with lumbar fusion.
- If procedures were performed at different levels, submit clinical documentation on appeal demonstrating that circumstance.
Risk of denial for obstetrical ultrasound add-ons without matching diagnosis
Ultrasound add-on codes indicating multiple gestation will be denied if the submitted diagnosis code does not specify multiple gestation; ensure diagnosis coding supports multiple gestation when billing those add-ons.
- Do not bill multiple-gestation ultrasound add-ons without a diagnosis code specifying multiple gestation.
Expect denial or recoding for out-of-sequence global/component claims
When one provider bills for the global service and another bills for a component (professional or technical), the first claim processed is paid; subsequent component or comprehensive claims may be denied or recoded—out-of-sequence claims that duplicate a comprehensive procedure will be denied or recoded.
- If multiple claims exist for components and global service, payment depends on processing order; subsequent duplicative claims may be denied.
- Out-of-sequence billing can result in denial or recoding to the comprehensive procedure.
Bill with appropriate codes and retain supporting documentation (including AI content)
Providers must bill using appropriate CPT®, HCPCS, and/or revenue codes supported by documentation in the medical record (including any AI-generated content, recordings, or transcripts when applicable); failure to follow coding or reimbursement guidelines may result in claim review, denial, or recovery of payment.
- Maintain medical records that fully support billed services and codes.
- Include any relevant AI-generated content or transcripts in documentation when used.
Append Modifier SA and follow new rendering provider billing rules for Incident To
Modifier SA and rendering provider billing requirements were added for Incident To effective 07/15/2026; providers should append Modifier SA where required and follow the new rendering provider billing rules when submitting incident-to claims.
- Append Modifier SA for incident-to reimbursement effective 07/15/2026.
- Ensure rendering provider information and appropriate NPI are included per the updated requirements.
Key Definitions Used in This Policy
Policy Revision Timeline
Added Modifier SA requirement and rendering provider billing requirements for Incident To reimbursement (providers must append Modifier SA and follow new rendering provider rules).
Removed CPT codes 63052 and 63053 from bundled services list for lumbar laminectomy, facetectomy and foraminotomy.
Specimen validity testing clarified as integral to drug testing with modifiers not allowing additional reimbursement (effective 08/15/2023).
Care Management Services updated to clarify psychiatric collaborative care management codes are not eligible for reimbursement when performed by behavioral health providers (notification 04/01/2023; effective 06/01/2023).
Policy reviewed and multiple historical edits recorded including terminology change from 'incidental' to 'mutually exclusive' in the Transvaginal Ultrasound section and other housekeeping updates.
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