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2025 ICD-10-CM code K51.5

Left-sided colitis, also known as left hemicolitis.

Use additional codes to identify any manifestations, such as pyoderma gangrenosum (L88). Exclude Crohn's disease (K50.-) as a possible diagnosis.

Medical necessity for treatment of left-sided colitis is established by the presence of signs, symptoms, and diagnostic findings confirming the diagnosis.

In simple words: A disease where the left side of your large intestine is repeatedly inflamed.

Inflammation of the large intestine, specifically affecting the left side.

Example 1: A patient presents with abdominal pain, cramping, and bloody diarrhea predominantly on the left side of the abdomen. After examination and diagnostic testing, including colonoscopy, they are diagnosed with left-sided colitis., A 45-year-old individual experiences persistent discomfort in their lower left abdomen along with changes in bowel habits. Following a thorough evaluation, including imaging and endoscopic procedures, a determination of left-sided colitis is made., During a routine colonoscopy, a patient is found to have inflammation isolated to the left side of their colon, consistent with left-sided colitis.

Documentation should include clinical findings such as abdominal pain, bowel habits, and any relevant diagnostic test results, including colonoscopy or imaging studies.

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