AHA Coding Clinic® for ICD-9 - 2004 Issue 4; VOLUMES 1 AND 2 NEW/REVISED DIAGNOSIS CODES

Endometrial Hyperplasia

Effective October 1, 2004, code 621.3, has been expanded to allow the reporting of endometrial hyperplasia (621.30), simple endometrial hyperplasia without atypia (621.31), complex endometrial hyperplasia without atypia (621.32), and endometrial hyperplasia with atypia (621.33). Endometrial hyperplasia is an abnormal thickening of the lining of the uterus. A diagnosis is made based on a tissue sampling. This condition may be classified as simple, complex, or atypical. The classification determines the risk of developing endometrial adenocarcinoma. Simple endometrial hyperplasia and Complex endometrial hyperplasia: These conditions are associated with estrogen usage that is unopposed by progesterone...

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