microscopic colitis lymphocytic colitis https://www.malacards.org/card/lymphocytic_colitis MedDRA:10025268 MEDGEN:98006 Orphanet:65279 NCIT:C27147 ICD10CM:K52.832 EFO:1001294 SCTID:31437008 MESH:D046730 icd11.foundation:1629251056 UMLS:C0400822 DOID:0060184 Microscopic colitis characterized by the accumulation of lymphocytes in the colonic epithelium and lamina propria. Patients present with chronic watery diarrhea. Colonoscopy reveals normal colonic mucosa. The diagnosis is made with the microscopic examination of the colonic biopsy samples. MONDO:0000704 ICD9:558.9