Malignant neoplasm of corpus uteri, except isthmus

This code signifies a primary cancerous tumor originating within the main body of the uterus, excluding the narrow lower segment (isthmus) that connects to the cervix. This malignancy typically arises from the endometrial lining.

Apply this code for confirmed diagnoses of endometrial carcinoma or other primary malignant neoplasms affecting the uterine corpus. Documentation should clearly state the malignancy's presence and its location within the uterine body, specifically excluding the isthmus or cervix.

• Ensure documentation specifies the malignancy is not in the isthmus or cervix; otherwise, a more specific code may be required.
• This code represents a primary malignancy; use secondary malignancy codes for metastatic disease to the corpus uteri.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.