DC33 Autoimmune pancreatitis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

Autoimmune pancreatitis (AIP) is a rare pancreatic disease characterised by chronic non-alcoholic pancreatitis that presents with abdominal pain, steatorrhoea, obstructive jaundice and responds well to steroid therapy and is seen in two subforms: type 1 AIP which affects elderly males, involves other organs and has increased immunoglobin G4 (IgG4) levels and type 2 AIP which affects both sexes equally but presents at a younger age and has no other organ involvement or increased IgG4 levels.

postcoordination

synonyms

• Autoimmune pancreatitis
• Type 1 IgG4 related autoimmune pancreatitis
• LPSP - [lymphoplasmacytic sclerosing pancreatitis]
• Autoimmune pancreatitis with other organ involvement
• Autoimmune pancreatitis without other organ involvement
• Type 2 Autoimmune pancreatitis featuring granulocytic epithelial lesion
• IDCP - [idiopathic duct-centric chronic pancreatitis]
• Type 2 Autoimmune pancreatitis featuring GEL

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