N85.02

ICD-10-CM Coding Rules

• N85.02

Applicable To

• Endometrial hyperplasia with atypia

Approximate Synonyms

• Atypical endometrial hyperplasia

• Endometrial hyperplasia with atypia

• Endometrial intraepithelial neoplasia

Clinical Information

• A benign form of endometrial hyperplasia with increased number of cells with atypia. The atypical cells are large and irregular and have an increased nuclear/cytoplasmic ratio. The risk of progression to endometrial carcinoma rises with the increasing degree of cell atypia.

• An endometrial hyperplasia characterized by cytologic and architectural changes which may lead to endometrial carcinoma. Despite the atypical features and possible course, there is debate on whether to consider this a neoplasm. The relationship with endometrial intraepithelial neoplasia is also unclear.

Details

• N85.02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM N85.02 became effective on October 1, 2022.

• This is the American ICD-10-CM version of N85.02 – other international versions of ICD-10 N85.02 may differ.