K51.3 is the ICD-10 code for Ulcerative (chronic) rectosigmoiditis. It is a four-character subcategory of K51 (Ulcerative colitis), the most specific level in the WHO edition. It belongs to the block K50–K52 (Noninfective enteritis and colitis) in Chapter XI, Diseases of the digestive system.
- Code type
- Subcategory (4 characters)
- Chapter
- XI · K00–K93
- Classification
- WHO ICD-10, 2019 version
K51.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
K51.3Ulcerøs rektosigmoiditt
DK513Ulcerøs proktosigmoiditis
K51.3[Pitkäaikainen] haavainen peräsuolen ja sigmasuolen tulehdus
K51.3Ulzeröse (chronische) Rektosigmoiditis
K51.3Rectosigmoïdite ulcéreuse (chronique)
K51.3ulceratieve (chronische-)rectosigmoïditis
Listed through more specific codes:
- K51.30Ulcerative (chronic) rectosigmoiditis without complications
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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