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2008 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 > Diseases Of Pulp And Periapical Tissues 522.* > 2008 ICD-9-CM Diagnosis 522.5 Periapical abscess without sinus  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 522.5 can be accessed here. Acute or chronic inflammation of tissues surrounding the apical portion of a tooth, associated with the collection of pus, resulting from infection following pulp infection through a carious lesion or as a result of an injury causing pulp necrosis. (Dorland, 27th ed) 522.5 is a specific code that can be used to specify a diagnosis 522.5 contains 13 index entries View the ICD-9-CM Volume 1 522.* hierarchy 522.5 also known as: Abscess: dental dentoalveolar 522.5 excludes: periapical abscess with sinus (522.7) Index entries containing 522.5: Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9 alveolar 522.5 with sinus 522.7 apical (tooth) 522.5 with sinus (alveolar) 522.7 dental 522.5 with sinus (alveolar) 522.7 dentoalveolar 522.5 with sinus (alveolar) 522.7 lateral (alveolar) 522.5 with sinus 522.7 maxilla, maxillary 526.4 molar (tooth) 522.5 with sinus 522.7 premolar 522.5 periapical 522.5 with sinus (alveolar) 522.7 periodontal (parietal) 523.31 apical 522.5 root, tooth 522.5 with sinus (alveolar) 522.7 septal, dental 522.5 with sinus (alveolar) 522.7 teeth, tooth (root) 522.5 with sinus (alveolar) 522.7 supporting structures NEC 523.30 tooth, teeth (root) 522.5 with sinus (alveolar) 522.7 supporting structure NEC 523.30