Table of Neoplasms

posterior

Neoplasm, neoplastic > mediastinum, mediastinal > posterior

Behaviour columns for this site and its sub-sites
SiteMalignant
PrimarySecondaryCa in situBenignUncertain BehaviorUnspecified Behavior
posteriorC38.2
0.671maps to HCC21
HCC21
C78.1
4.209maps to HCC17
HCC17
No code published for this behaviourD15.2
0.000maps to no HCC category
D38.3
0.000maps to no HCC category
D49.89
0.000maps to no HCC category

Filled maps to an HCC · hollow maps to none. Coefficients are Community, Non-Dual, Aged under CMS-HCC V28 PY2027; only the A form risk-adjusts.

means CMS publishes no code for that behaviour. Different from 0.000, which means a code exists and risk-adjusts at zero.

The column is chosen by the documentation, not by the coder. Behaviour follows the pathology report (Guideline I.C.2). How these figures were derived.

Codes above link to their Tabular List entry. Guideline I.C.2 directs you to confirm every code there before assigning it — the table routes many sites onto shared codes, so the tabular title often names a broader category than the one you looked up.