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The information in this section pertains to Medicare fee-for-service (also know as the original or traditional Medicare program) institutional claims. Institutional claims include any claim submitted using the HIPAA-mandated transaction ASC X12N 837 – Health Care Claim: Institutional or the UB-04 paper claim form format.

Additional guidance can be found in the various chapters of the CMS Medicare Claims Processing Manual (Pub. 100-04)External Website.

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