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Gingivitis K05.10
    acute (catarrhal) K05.00
        necrotizing A69.1
        nonplaque induced K05.01
        plaque induced K05.00
    chronic (desquamative) (hyperplastic) (simple marginal) (pregnancy associated) (ulcerative) K05.10
        nonplaque induced K05.11
        plaque induced K05.10
    expulsiva --see Periodontitis
    necrotizing ulcerative (acute) A69.1
    pellagrous E52
        acute necrotizing A69.1
    Vincent's A69.1