The code specifying a federal non-Medicare program or other source that has primary responsibility for the payment of the Medicare beneficiary's medical bills relating to the line item service on the non-institutional claim. The presence of a primary payer code indicates that some other payer besides Medicare covered at least some portion of the charges. Source: https://bluebutton.cms.gov/resources/variables/linebeneprmrypyrcd
\nThis value set includes codes from the following code systems:
https://bluebutton.cms.gov/assets/ig/CodeSystem-line-bene-prmry-pyr-cd