Neoplasm Table

pia mater

Site	Malignant primary	Malignant secondary	Ca in situ	Benign	Uncertain behavior	Unspecified behavior
pia mater	C70.9	C79.40	—	D32.9	D42.9	D49.7
cerebral	C70.0	C79.32	—	D32.0	D42.0	D49.7
cranial	C70.0	C79.32	—	D32.0	D42.0	D49.7
spinal	C70.1	C79.49	—	D32.1	D42.1	D49.7

Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.

Frequently asked questions

What are the ICD-10-CM neoplasm codes for pia mater?

Per the ICD-10-CM Neoplasm Table: malignant primary C70.9; malignant secondary C79.40; benign D32.9; uncertain behavior D42.9; unspecified behavior D49.7. Always confirm the code, and add the required 7th character where applicable, in the Tabular List.

ICD-10-CM Neoplasm Table maintained by CDC/NCHS (public domain), from the CMS FY2027 release.