WDS Periodontal Disease Classification

WDS (Washington Dental Service, a Delta dental insurance company) uses a periodontal disease classification system based on pocket depth readings, recession, and furcation. They call the classifications "case types."

Here is the table that WDS included in their April 2010 Processing Policies Manual:

**WDS Periodontal Disease Case Type**
Case Type	Characteristics	Pocket Depths	Furcation Grade	Gum Recession	Attachment Loss
0 Clinically Healthy	Pink, firm, resilient without inflammation	1 to 3 mm	None	None	None
1 Chronic Marginal Gingivitis	Reddish blue with inflammation, bleeds with gentle probing	< 4 mm	None	None	None
2 Early Periodontitis	Progression of inflammation, early bone loss with moderate bleeding	4 to 5 mm	May have Grade I furcation	May exhibit signs of early recession	Ranges from 1 to 5 mm
3 Moderate Periodontitis	Increased destruction of tissues	5 to 7 mm	Grade II furcation	Advancing recession	5 to 7 mm
4 Advanced Periodontitis	Further progression with severe destruction of periodontal structures	> 7 mm	Grade II to Grade II furcation	Advancing recession	6+ mm

Note that this is NOT the classification system recommended by the AAP. It should not be used for clinical diagnoses; it should be used for insurance claim purposes only, and even then only with WDS policies.

More free Dental Practice Management Free goodies:

Dr. O's Dental Consultant Management Downloads

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Dr. O's Dental Insurance and Coding Documents

See the AAP Classifications

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