Malignant neoplasm of pelvis

This code signifies the presence of a primary cancerous tumor originating within the pelvic region. This includes malignant neoplasms affecting structures such as the pelvic bones, connective tissues, and unspecified sites within the pelvis, excluding specific organs with their own dedicated codes.

Utilize this code when documentation confirms a primary malignant neoplasm located in the pelvis, and a more specific site within the pelvis (e.g., bladder, uterus, rectum) is not identified or is not the primary focus. This code is appropriate when the physician's diagnosis explicitly states "malignant neoplasm of pelvis" without further anatomical specificity.

• Always seek to code to the highest level of specificity; if a specific pelvic organ is documented as the primary site, use the appropriate C-code for that organ.
• Do not use this code for metastatic cancer to the pelvis; use a secondary malignant neoplasm code (C79.-) in conjunction with the primary site.
• Ensure documentation clearly states "primary" or "malignant neoplasm of pelvis, unspecified" to support the use of this code.