ICD-10 Code K62.82 – Dysplasia of anus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K62.82 – Dysplasia of anus
What it is
K62.82 identifies dysplastic, or precancerous, changes in the anal lining. Use it when documentation states anal dysplasia, anal intraepithelial neoplasia, or similar abnormal epithelial change.
Clinical signs
Clinical features vary; refer to documentation. Anal dysplasia is often found on anoscopy, biopsy, or cytology rather than by symptoms alone, and may be described as low-grade or high-grade change.
When to use this code
Use K62.82 when the provider documents dysplasia of the anus, anal intraepithelial neoplasia, or a biopsy-confirmed precancerous lesion in the anal canal or margin. Code it when the record clearly identifies anal dysplasia and not a nonspecific rectal or perianal condition. Check documentation if the site or grade is unclear.
Do not use for
Do not use this code for anal cancer, benign anal polyps, hemorrhoids, or nonspecific anal irritation. If the note only says “abnormal anal lesion” without dysplasia, check documentation.
Coding tip
Assign K62.82 only when the provider documents dysplasia at the anus, and confirm the anatomic site before coding.