ICD-10 · PDGM grouping
D49-D49 — Neoplasms of unspecified behavior
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
14
No clinical group
2
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
10 of the 14 codes in D49-D49 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases, but the range is not uniform — it spreads across 2 clinical groups. A further 2 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in D49-D49
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 D49-D49
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| D490 | Neoplasm of unspecified behavior of digestive system | K | Can lead a claim |
| D491 | Neoplasm of unspecified behavior of respiratory system | K | Can lead a claim |
| D492 | Neoplasm of unsp behavior of bone, soft tissue, and skin | K | Can lead a claim |
| D493 | Neoplasm of unspecified behavior of breast | K | Can lead a claim |
| D494 | Neoplasm of unspecified behavior of bladder | K | Can lead a claim |
| D49511 | Neoplasm of unspecified behavior of right kidney | K | Can lead a claim |
| D49512 | Neoplasm of unspecified behavior of left kidney | K | Can lead a claim |
| D49519 | Neoplasm of unspecified behavior of unspecified kidney | None | Cannot lead a claim |
| D4959 | Neoplasm of unspecified behavior of other GU organ | K | Can lead a claim |
| D496 | Neoplasm of unspecified behavior of brain | B | Can lead a claim |
| D497 | Neoplm of unsp behav of endo glands and oth prt nervous sys | K | Can lead a claim |
| D4981 | Neoplasm of unspecified behavior of retina and choroid | B | Can lead a claim |
| D4989 | Neoplasm of unspecified behavior of other specified sites | K | Can lead a claim |
| D499 | Neoplasm of unspecified behavior of unspecified site | None | Cannot 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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