2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Gingival And Periodontal Diseases 523.* > 2006 ICD-9-CM Diagnosis 523.6 Accretions on teeth View the most recent version of ICD-9-CM 523.6 523.6 is a specific code that can be used to specify a diagnosis 523.6 contains 13 index entries View the ICD-9-CM Volume 1 523.* hierarchy Alternate Terminology Dental calculus: subgingival supragingival Deposits on teeth: betel materia alba soft tartar tobacco Extrinsic discoloration of teeth 523.6 Excludes intrinsic discoloration of teeth (521.7)  Index entries containing 523.6: Accretions on teeth 523.6 Calculus, calculi, calculous 592.9 dental 523.6 subgingival 523.6 supragingival 523.6 tooth, teeth 523.6 Change(s) (of) - see also Removal of color, teeth, tooth extrinsic 523.6 Deposit teeth, tooth (betel) (black) (green) (materia alba) (orange) (soft) (tobacco) 523.6 Discoloration teeth 521.7 extrinsic 523.6 Stain, staining tooth, teeth (hard tissues) 521.7 due to accretions 523.6 deposits (betel) (black) (green) (materia alba) (orange) (tobacco) 523.6 nicotine 523.6 tobacco 523.6 Tartar (teeth) 523.6