CMS 1500 (08/05) Crosswalk
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Block 17a
- 1. Referring Provider Legacy ID: Indicating the Referring Provider on the claim
- Scenario A: Referring Provider Legacy ID (Defaulting Taxonomy code for an Internal Provider listed as the Referring Provider)
- Scenario B: Referring Provider Legacy ID (when an Internal Provider is listed as the Referring Provider)
- Scenario C: Referring Provider Legacy ID (when an External Provider is listed as the Referring Provider)