Gastroenterology Coding Alert

Reader Questions:

Bolster Screening Colonoscopies With ICD-9 Codes

Question: A 70-year-old established Medicare patient with regional enteritis of the duodenum and a family history of gastrointestinal cancer reports to the gastroenterologist for a screening colonoscopy. Should I report G0121 or G0105?North Carolina SubscriberAnswer: Given the patient's family history and current condition, he is at high risk for colorectal cancer, meaning you should report the colonoscopy with G0105 (Colorectal cancer screening; colonoscopy on individual at high risk).Don't forget to attach these ICD-9 codes to G0105 to prove medical necessity for the service:• 555.0 -- Regional enteritis; small intestine• V16.0 -- Family history of malignant neoplasm; gastrointestinal tract.Why it matters: Because your patient is at high risk for colorectal cancer, he is entitled to a screening colonoscopy every 48 months. If your patient was at average risk, you would report the service with G0121 (Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk). Average-risk patients are entitled to a screening once every 10 years.High-risk criteria: When your outpatient physician performs a colonoscopy screening on a Medicare patient at high risk for colorectal cancer, the patient could have one or more of the following characteristics:• a close relative (sibling, parent or child) who has had colorectal cancer or an adenomatous polyp• a family history of familial adenomatous polyposis• a family history of hereditary nonpolyposis colorectal cancer• a personal history of colorectal cancer• a personal history of adenomatous polyps• inflammatory bowel disease, including Crohn's disease and ulcerative colitis.
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