ICD-10 · PDGM grouping
C51-C58 — Malignant neoplasms of female genital organs
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
36
No clinical group
5
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
31 of the 36 codes in C51-C58 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. A further 5 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in C51-C58
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
- C51Malignant neoplasm of vulva5 codes
- C52Malignant neoplasm of vagina1 code
- C53Malignant neoplasm of cervix uteri4 codes
- C54Malignant neoplasm of corpus uteri6 codes
- C55Malignant neoplasm of uterus, part unspecified1 code
- C56Malignant neoplasm of ovary4 codes
- C57Malignant neoplasm of other and unspecified female genital organs14 codes
- C58Malignant neoplasm of placenta1 code
Every code in C51-C58
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| C510 | Malignant neoplasm of labium majus | K | Can lead a claim |
| C511 | Malignant neoplasm of labium minus | K | Can lead a claim |
| C512 | Malignant neoplasm of clitoris | K | Can lead a claim |
| C518 | Malignant neoplasm of overlapping sites of vulva | K | Can lead a claim |
| C519 | Malignant neoplasm of vulva, unspecified | K | Can lead a claim |
| C52 | Malignant neoplasm of vagina | K | Can lead a claim |
| C530 | Malignant neoplasm of endocervix | K | Can lead a claim |
| C531 | Malignant neoplasm of exocervix | K | Can lead a claim |
| C538 | Malignant neoplasm of overlapping sites of cervix uteri | K | Can lead a claim |
| C539 | Malignant neoplasm of cervix uteri, unspecified | K | Can lead a claim |
| C540 | Malignant neoplasm of isthmus uteri | K | Can lead a claim |
| C541 | Malignant neoplasm of endometrium | K | Can lead a claim |
| C542 | Malignant neoplasm of myometrium | K | Can lead a claim |
| C543 | Malignant neoplasm of fundus uteri | K | Can lead a claim |
| C548 | Malignant neoplasm of overlapping sites of corpus uteri | K | Can lead a claim |
| C549 | Malignant neoplasm of corpus uteri, unspecified | K | Can lead a claim |
| C55 | Malignant neoplasm of uterus, part unspecified | K | Can lead a claim |
| C561 | Malignant neoplasm of right ovary | K | Can lead a claim |
| C562 | Malignant neoplasm of left ovary | K | Can lead a claim |
| C563 | Malignant neoplasm of bilateral ovaries | K | Can lead a claim |
| C569 | Malignant neoplasm of unspecified ovary | None | Cannot lead a claim |
| C5700 | Malignant neoplasm of unspecified fallopian tube | None | Cannot lead a claim |
| C5701 | Malignant neoplasm of right fallopian tube | K | Can lead a claim |
| C5702 | Malignant neoplasm of left fallopian tube | K | Can lead a claim |
| C5710 | Malignant neoplasm of unspecified broad ligament | None | Cannot lead a claim |
| C5711 | Malignant neoplasm of right broad ligament | K | Can lead a claim |
| C5712 | Malignant neoplasm of left broad ligament | K | Can lead a claim |
| C5720 | Malignant neoplasm of unspecified round ligament | None | Cannot lead a claim |
| C5721 | Malignant neoplasm of right round ligament | K | Can lead a claim |
| C5722 | Malignant neoplasm of left round ligament | K | Can lead a claim |
| C573 | Malignant neoplasm of parametrium | K | Can lead a claim |
| C574 | Malignant neoplasm of uterine adnexa, unspecified | K | Can lead a claim |
| C577 | Malignant neoplasm of other specified female genital organs | K | Can lead a claim |
| C578 | Malignant neoplasm of ovrlp sites of female genital organs | K | Can lead a claim |
| C579 | Malignant neoplasm of female genital organ, unspecified | None | Cannot lead a claim |
| C58 | Malignant neoplasm of placenta | 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.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue