E13.630

HCC Category Mapping

What This Code Means

A type of diabetes (not type 1 or type 2) that causes gum disease and tooth-supporting tissue damage.

Coding Tips

• •Document the severity of periodontal disease (gingivitis vs. periodontitis)
• •Coordinate with dental records if available for complete documentation

Clinical Significance

E13.630 identifies periodontal disease in other specified diabetes mellitus. Diabetes significantly increases the risk and severity of periodontal disease through impaired immune function, altered collagen metabolism, and microvascular changes in gingival tissues. The relationship is bidirectional, as periodontal disease can worsen glycemic control.

Documentation Requirements

• ✓The provider must document secondary diabetes and periodontal disease with a causal link to diabetes.
• ✓Dental or periodontal examination findings including pocket depths, bone loss, and gingival inflammation should be documented.
• ✓The bidirectional nature makes establishing causality important.

Commonly Confused Codes