ICD-10 · PDGM grouping
C7B-C7B — Secondary neuroendocrine tumors
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
Codes in range
8
No clinical group
1
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
7 of the 8 codes in C7B-C7B group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. A further 1 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in C7B-C7B
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in C7B-C7B
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| C7B00 | Secondary carcinoid tumors, unspecified site | None | Cannot lead a claim |
| C7B01 | Secondary carcinoid tumors of distant lymph nodes | K | Can lead a claim |
| C7B02 | Secondary carcinoid tumors of liver | K | Can lead a claim |
| C7B03 | Secondary carcinoid tumors of bone | K | Can lead a claim |
| C7B04 | Secondary carcinoid tumors of peritoneum | K | Can lead a claim |
| C7B09 | Secondary carcinoid tumors of other sites | K | Can lead a claim |
| C7B1 | Secondary Merkel cell carcinoma | K | Can lead a claim |
| C7B8 | Other secondary neuroendocrine tumors | K | Can lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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