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Washington State Dental Association

HCA Provider Alert - 7/14

The Health Care Authority (agency) has published an updated Dental-Related Services Billing Guide, dated July 12, 2017. The updated billing guide contains revisions to CDT codes D3220 and D3221 as follows: 

  • CDT code D3220 allowed for primary teeth only  
  • CDT code D3221 allowed for permanent teeth only, including Medical Care Services (MCS) clients

Some of these restrictions were listed in the previously published billing guide under the “Description” column. They have been moved to the “Limitations” column. 

The agency also added scaling in the presence of generalized moderate or severe gingival inflammation to the list of covered periodontal services for clients of the Developmental Disabilities Administration.

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