What is a Taxonomy code, and where do Taxonomy codes go on a UB04 (CMS-1450) claim form
The taxonomy code is a unique
alphanumeric code, ten characters in length. The code set is structured into
three distinct "Levels," including Provider Grouping, Classification,
and Area of Specialization. The provider self-selects the taxonomy codes, which
are organized based on education and training and used to define
specialty.
There is a detailed lookup
for taxonomy codes based on the taxonomy code sets at https://taxonomy.nucc.org/
Taxonomy code placement on
the UB04 claim form is in field 81 with a qualifier of B3.

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