556.8
ICD-9-CMThis code signifies ulcerative colitis that does not fit into the more specific categories of ulcerative (chronic) enterocolitis, proctitis, or rectosigmoiditis. It represents a chronic inflammatory condition affecting the colon, characterized by ulceration of the colonic mucosa.
Apply this code when documentation specifies ulcerative colitis without further anatomical detail, or when the affected area is extensive but not specifically categorized elsewhere. This code is appropriate when the physician's notes clearly indicate ulcerative colitis but do not specify proctitis, rectosigmoiditis, or enterocolitis.
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