Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93). Pulpitis (inflammation of the pulp, i.e., the tissue inside the tooth) – differential diagnosis to apical periodontitis (synonyms: apical periodontitis, apical osteitis, or root tip inflammation; from Latin apex ‘tip’; is inflammation at the root tip of a tooth)
Periodontitis (inflammation of the periodontium) is one of the periodontal diseases (diseases of the periodontium). Their classification, established by the International Workshop for a Classification of Periodontal Diseases and Conditions in 1999, is still valid. The very comprehensive classification, which, incidentally, does not follow the ICD code (ICD:, English : International Statistical Classification of Diseases … Periodontitis: Classification
