2013 ICD-9-CM Diagnosis Code 621.3
- A proliferation of the endometrial cells resulting in glandular enlargement and budding. The proliferation may or may not be associated with atypia of the endometrial cells. When the hyperplastic changes are excessive, there is formation of complex epithelial structures (complex endometrial hyperplasia). --2003
- There are 6 ICD-9-CM codes below 621.3 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.