ICD-10-CM › C00-D49 › C51-C58 › C51 Malignant neoplasm of vulva › C51.9
Malignant neoplasm of vulva, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Malignant neoplasm of vulva, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from C51 Malignant neoplasm of vulva
Excludes1 - never coded here
- carcinoma in situ of vulva (D07.1)
Inherited from the C51-C58 section Malignant neoplasms of female genital organs (C51-C58)
Includes
- malignant neoplasm of skin of female genital organs
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Melanosarcoma
- Nevocarcinoma
- Melanoblastoma
- Melanocarcinoma
- Mole > cancerous
- Melanoepithelioma
- Nevus > malignant
- Melanoma > nodular
- Sarcoma > melanotic
- Melanoma > amelanotic
- Melanoma > balloon cell
- Nevus > blue > malignant
- Melanoma > epithelioid cell
- Lentigo > maligna > melanoma
- Freckle > malignant melanoma in
- Melanoma > in > junctional nevus
- Melanoma > regressing, malignant
- Melanoma > superficial spreading
- Melanosarcoma > epithelioid cell
- Melanoma > neurotropic, malignant
- Melanoma > desmoplastic, malignant
- Melanoma > in > giant pigmented nevus
- Mole > malignant > meaning > melanoma
- Melanoma > in > precancerous melanosis
- Melanoma > acral lentiginous, malignant
- Melanoma > in > Hutchinson's melanotic freckle
- Melanosis > precancerous > malignant melanoma in
- Melanoma > spindle cell > with epithelioid, mixed
- Nevus > pigmented > giant > malignant melanoma in
- Melanoma > epithelioid cell > with spindle cell, mixed
- Hutchinson's > melanotic freckle > malignant melanoma in
- Melanoma > skin > vulva
- Melanoma > skin > labium
- Melanoma > skin > pudendum
- Neoplasm, neoplastic > labia
- Neoplasm, neoplastic > vulva
- Neoplasm, neoplastic > labium
- Neoplasm, neoplastic > fourchette
- Neoplasm, neoplastic > mons > pubis
- Neoplasm, neoplastic > mons > veneris
Showing 40 of 47 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| C51.0 | Malignant neoplasm of labium majus | Valid |
| C51.1 | Malignant neoplasm of labium minus | Valid |
| C51.2 | Malignant neoplasm of clitoris | Valid |
| C51.8 | Malignant neoplasm of overlapping sites of vulva | Valid |