Type of Code ICD-9-CM Category Chapter II (Neoplasms) ICD-9-CM Term ICD-10-CM Category Chapter II (Neoplasms) ICD-10-CM Term REPORTABLE 158.0 Retroperitoneum C48.0 Malignant neoplasm of retroperitoneum REPORTABLE 158.8 Specified parts of peritoneum *C48.1 C48.8 C45.1
https://seer.cancer.gov/tools/conversion/2014/ICD9CM_to_ICD10CM_2014CF.pdf
In ICD-10-CM the codes for neoplasms are site specific C18.0 Malignant neoplasm of cecum C18.1 Malignant neoplasm of appendix C18.3 Malignant neoplasm of ascending colon
http://static.aapc.com/a3c7c3fe-6fa1-4d67-8534-a3c9c8315fa0/1967da6c-6881-45a6-a842-0f8acc2eee61/46b62b12-1bd0-4544-ac5e-9d103b01e1f0.pdf
Unless the pathologist states that it is malignant, the default code is 8005/1 (non-reportable). 18
https://seer.cancer.gov/archive/manuals/2021/spcsm_2021_appendix_e.pdf
SUPPLEMENT V10.91 Personal history of malignant neuroendocrine tumor *Z85.9 Z85.820 Z85.821 Z85.030 Z85.040 Z85.060 Z85.110 Z85.230 Z85.520 Personal history of malignant neoplasm, unspecified (Conditions classifiable to C7A.00, C80.1) Personal history of malignant carcinoid tumor of stomach (Conditions classifiable to C7A.092)
https://seer.cancer.gov/tools/conversion/2014/ICD9CM_to_ICD10CM_2014CF.pdf
pdf for "mets pancreatic cancer icd 10".(Page 1 of about 18 results)