Familial adenomatous polyposis
ICD-10 D13.91 is a billable code used to indicate a diagnosis of familial adenomatous polyposis.
Familial adenomatous polyposis (FAP) is a hereditary condition characterized by the development of numerous adenomatous polyps in the colon and rectum, typically beginning in adolescence or early adulthood. These polyps are benign but have a high risk of progressing to colorectal cancer if left untreated. FAP is caused by mutations in the APC gene, leading to abnormal cell growth in the intestinal lining. Patients with FAP may develop hundreds to thousands of polyps, and the risk of colorectal cancer approaches nearly 100% by the age of 40 if prophylactic measures are not taken. Surveillance through regular colonoscopy is crucial for early detection and management of polyps, and surgical intervention, such as colectomy, is often recommended to prevent cancer development. Additionally, individuals with FAP may also experience extraintestinal manifestations, including desmoid tumors and other malignancies, necessitating comprehensive management and surveillance strategies.
Detailed colonoscopy reports, polyp pathology results, and family history of colorectal cancer.
Routine surveillance colonoscopy, management of polyps, and referral for genetic counseling.
Ensure accurate coding of polyp type and size, and document any interventions performed.
Genetic test results, family pedigree charts, and counseling notes.
Genetic testing for APC mutations, family risk assessment, and management recommendations.
Document the rationale for genetic testing and the implications for family members.
Used for routine surveillance in patients with FAP.
Document findings, number of polyps, and any biopsies taken.
Gastroenterologists should ensure thorough documentation of polyp characteristics.
Genetic testing is crucial for confirming the diagnosis of FAP, identifying at-risk family members, and guiding surveillance and management strategies.
