NDC Lookup for Physician-Administered Drugs

The National Drug Code is the FDA identifier for a specific drug package. It has three segments: the labeler code for the manufacturer or distributor, the product code for the strength, dosage form, and formulation, and the package code for the package size. One drug can carry several NDCs, one for each package it ships in, and a single HCPCS drug code can carry many NDCs — every labeler, strength, and package size that bills under that code. BuyandBill.com shows the package description for publicly available NDCs, and a subscription unlocks the full set of alignments and pricing.

NDCs for physician-administered drugs — the products a practice buys and bills under the medical benefit. Every NDC listed on the site aligns to a HCPCS drug code, which is what makes it billable on a medical claim, so NDCs with no HCPCS alignment (retail pharmacy products dispensed under the pharmacy benefit, most oral and self-administered drugs, and non-drug items) are out of scope. Within that coverage, the free lookup returns the publicly available NDCs; a subscription opens the complete NDC list and the full set of NDC–HCPCS alignments.

The two codes answer different questions. The NDC identifies the exact package the drug came from, including the manufacturer, strength, and package size. The HCPCS code tells the payer which drug was administered and in what unit of measure. A claim for a physician-administered drug often reports both. BuyandBill.com links every NDC to its aligned HCPCS code and provides the billing-unit conversion between the two; full alignments and pricing require a subscription.

The FDA assigns NDCs in a 10-digit format, but claims report them in an 11-digit format written as 5-4-2. Converting means adding a leading zero to whichever segment is short: a 4-4-2 code takes the zero in the first segment, a 5-3-2 code in the second, and a 5-4-1 code in the third. No digits are ever removed. The converter on this page does the translation for any code, and BuyandBill.com displays NDCs in the 11-digit billing format, so the number on screen is the number the claim needs.

WAC and AWP pricing and NDC-to-HCPCS alignments are refreshed weekly. ASP and the Medicare Payment Limit follow the CMS quarterly schedule, taking effect in January, April, July, and October, and CMS corrections are applied as soon as they are published.

Package detail, NDC-to-HCPCS alignments, and WAC and AWP pricing are collected by BuyandBill.com directly from drug manufacturers. ASP is calculated by BuyandBill.com, and HCPCS descriptors and the Medicare Payment Limit come directly from CMS.

Yes. Searching is free, and every drug code page shows the descriptor, basic coding detail, and the current Medicare Payment Limit without a login. The full set of NDC alignments and manufacturer pricing (ASP, WAC, and AWP) come with a subscription, and a 7-day free trial opens all of it.