What is a Taxonomy code, and where do Taxonomy codes go on a CMS 1500 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 CMS 1500 claim form is in fields 24j and 33b.
Taxonomy codes are entered in the shaded field above the rendering NPI in field 24j. The qualifier used to identify a taxonomy code used on a CMS 1500 form is ZZ, which is entered in 24i.
When entering a taxonomy code on the CMS 1500 form in field 33b, enter the qualifier ZZ before the taxonomy code.
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