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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 522.6

Chronic apical periodontitis

  • Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS.
  • 522.6 is a specific code that can be used to specify a diagnosis
  • 522.6 contains 5 index entries
  • View the ICD-9-CM Volume 1 522.* hierarchy

522.6 also known as:

  • Apical or periapical granuloma
  • Apical periodontitis NOS


Index entries containing 522.6:

Granuloma NEC 686.1
  • apical 522.6
  • dental 522.6
  • periapical 522.6
  • pyogenic, pyogenicum (skin) 686.1
    • maxillary alveolar ridge 522.6
Periodontitis (chronic) (complex) (compound) (simplex) 523.40
  • apical 522.6
    • acute (pulpal origin) 522.4