Drugs are grouped or classified in various ways. The NDC groups drugs by the manufacturer or repackager. For health interventions, a classification by function is more important. The following are some of the ways we groups drugs.
|GCN||Generic code number ("GCN") was created by First Data Bank to uniquely identify a combination of ingredient, strength, form, and route. The GCN is a 5-digit number, assigned sequentially.|| |
The Hierarchical Ingredient Code ("HIC") was created by First Data Bank.
The HIC is a 6-character code that identifies the drug.
Because the coding is hierarchical, part of the HIC may be used
to group drugs together.
|HIC3/GC3||First Data Bank's specific therapeutic class consists of the first 3 characters of the Hierarchical Ingredient Code. For this reason it is called the "HIC3". It is also abbreviated as "GC3".||
ProVantage created the GXC to group prescription drugs by route
The GXC is an 8 character code.
The first 6 characters of the GXC usually, but not necessarily, match the primary HIC for the drug.
ProVantage created the RXC as a way to classify prescription drugs
by the active ingredient.
It ignores the manufacturer and the strength of the product.
The RXC is a 8 character code but is typically suffixed by
the constant "|
The RXC is based on First Data Bank's specific therapeutic class, but is modified specifically for drug utilization review.
ProVantage created the PXC as a way to classify prescription drugs.
The PXC is based on First Data Bank's specific therapeutic class
but is modified specifically for drug utilization review.
The PXC usually, but not always, matches the HIC3 for the drug. The PXC usually, but not always, matches the first part of the RXC.
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