EOD Primary Tumor
Notes
**Note:** The cortex of a bone is the dense outer shell that provides strength to the bone; the spongy center of a bone is the cancellous portion. The periosteum of the bone is the fibrous membrane covering of a bone that contains the blood vessels and nerves; the periosteum is similar to the capsule on a visceral organ.Code | Description | SS2018 T |
---|---|---|
100 | Any size tumor Confined to cortex of bone Extension beyond cortex to periosteum (no break in periosteum) Localized, NOS | L |
200 | Any size tumor with extension to Adjacent bone/cartilage Beyond periosteum to surrounding tissues, including adjacent skeletal muscle(s) | RE |
300 | Any size tumor with extension to - Skin | D |
500 | Discontinuous tumors in the primary bone site Further contiguous extension | D |
800 | No evidence of primary tumor | U |
999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record Death Certificate Only | U |