ICD-11 MMS

13 Diseases of the digestive system

Diseases or disorders of orofacial complex  (DA00-DA0Z)

DA01 Disorders of oral mucosa

DA01.2 Granuloma or granuloma-like lesions of oral mucosa

DA01.21 Orofacial granulomatosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


Orofacial granulomatosis (OFG) is an uncommon clinicopathological entity characterised by persistent and/or recurrent lymphoedema and fissuring of the lips and oral mucosa (the latter resulting in a "cobblestone" appearance), oral ulceration and the presence on biopsy of non-caseating granulomas. OFG may be an early manifestation of Crohn disease, sometimes presenting months or years before bowel disease. Some cases are associated with dental infections, sarcoidosis, food allergy or contact allergy. Granulomatous cheilitis is a form of OFG confined to the lips. Rarely, OFG may be associated with fissured tongue and facial palsy (Melkersson-Rosenthal syndrome).

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