Understanding CMS1500 Box 19: NDC Requirements for J Code Billing
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CMS1500 - BOX 19: RESERVED FOR LOCAL USE
If you are billing a J code in Box 24D, enter the National Drug Code (NDC) for that drug. Do not enter the description of the drug, and do not enter NDC before the actual NDC code. Only one J code may be billed per claim.
NDCs printed on packages often have fewer then 11 digits, with hyphens (-) separating the number into three segments. For a complete 11-digit number, the first segment must have 5 digits, the second segment must have 4 digits, and the third segment must have 2 digits. Leading zeros are added leftjustified, wherever they are needed to complete a segment with the correct number of digits.
Package Number Zero Fill (5-4-2) 11-digit NDC 1234-1234-12 (01234-1234-12) 01234123412 12345-123-12 (12345-0123-12) 12345012312