ICD-10 · PDGM grouping
C7A-C7A — Malignant 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
23
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
22 of the 23 codes in C7A-C7A 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 C7A-C7A
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 C7A-C7A
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| C7A00 | Malignant carcinoid tumor of unspecified site | None | Cannot lead a claim |
| C7A010 | Malignant carcinoid tumor of the duodenum | K | Can lead a claim |
| C7A011 | Malignant carcinoid tumor of the jejunum | K | Can lead a claim |
| C7A012 | Malignant carcinoid tumor of the ileum | K | Can lead a claim |
| C7A019 | Malignant carcinoid tumor of the sm int, unsp portion | K | Can lead a claim |
| C7A020 | Malignant carcinoid tumor of the appendix | K | Can lead a claim |
| C7A021 | Malignant carcinoid tumor of the cecum | K | Can lead a claim |
| C7A022 | Malignant carcinoid tumor of the ascending colon | K | Can lead a claim |
| C7A023 | Malignant carcinoid tumor of the transverse colon | K | Can lead a claim |
| C7A024 | Malignant carcinoid tumor of the descending colon | K | Can lead a claim |
| C7A025 | Malignant carcinoid tumor of the sigmoid colon | K | Can lead a claim |
| C7A026 | Malignant carcinoid tumor of the rectum | K | Can lead a claim |
| C7A029 | Malignant carcinoid tumor of the lg int, unsp portion | K | Can lead a claim |
| C7A090 | Malignant carcinoid tumor of the bronchus and lung | K | Can lead a claim |
| C7A091 | Malignant carcinoid tumor of the thymus | K | Can lead a claim |
| C7A092 | Malignant carcinoid tumor of the stomach | K | Can lead a claim |
| C7A093 | Malignant carcinoid tumor of the kidney | K | Can lead a claim |
| C7A094 | Malignant carcinoid tumor of the foregut, unspecified | K | Can lead a claim |
| C7A095 | Malignant carcinoid tumor of the midgut, unspecified | K | Can lead a claim |
| C7A096 | Malignant carcinoid tumor of the hindgut, unspecified | K | Can lead a claim |
| C7A098 | Malignant carcinoid tumors of other sites | K | Can lead a claim |
| C7A1 | Malignant poorly differentiated neuroendocrine tumors | K | Can lead a claim |
| C7A8 | Other malignant 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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