2021 ICD-10-CM Code C51.8
Malignant neoplasm of overlapping sites of vulva
Valid for Submission
C51.8 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of overlapping sites of vulva. The code C51.8 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C51.8 might also be used to specify conditions or terms like overlapping malignant neoplasm of vulva.
The code C51.8 is applicable to female patients only. It is clinically and virtually impossible to use this code on a non-female patient.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic skin NOS vulva overlapping lesion .
| ICD-10: | C51.8 |
| Short Description: | Malignant neoplasm of overlapping sites of vulva |
| Long Description: | Malignant neoplasm of overlapping sites of vulva |
Code Classification
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code C51.8 are found in the index:
- - Melanoma (malignant) - C43.9
- - skin - C43.9
- - vulva - C51.9
- - overlapping sites - C51.8
- - vulva - C51.9
- - skin - C43.9
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Diagnoses for females only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to FEMALES only .
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Overlapping malignant neoplasm of vulva
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code C51.8 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.
- 736 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITH MCC - Relative Weight: 4.2582
- 737 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITH CC - Relative Weight: 2.0582
- 738 - UTERINE AND ADNEXA PROCEDURES FOR OVARIAN OR ADNEXAL MALIGNANCY WITHOUT CC/MCC - Relative Weight: 1.4766
- 739 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITH MCC - Relative Weight: 3.8217
- 740 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITH CC - Relative Weight: 1.8
- 741 - UTERINE AND ADNEXA PROCEDURES FOR NON-OVARIAN AND NON-ADNEXAL MALIGNANCY WITHOUT CC/MCC - Relative Weight: 1.2795
Convert C51.8 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C51.8 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 184.8 - Mal neo female genit NEC (Approximate Flag)
Table of Neoplasms
The code C51.8 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
| Neoplasm, neoplastic | Malignant Primary |
Malignant Secondary |
CaInSitu | Benign | Uncertain Behavior |
Unspecified Behavior |
|---|---|---|---|---|---|---|
| »Neoplasm, neoplastic »skin NOS »vulva »overlapping lesion | C51.8 |
Information for Patients
Vulvar Cancer
Vulvar cancer is a rare type of cancer. It forms in a woman's external genitals, called the vulva. The cancer usually grows slowly over several years. First, precancerous cells grow on vulvar skin. This is called vulvar intraepithelial neoplasia (VIN), or dysplasia. Not all VIN cases turn into cancer, but it is best to treat it early.
Often, vulvar cancer doesn't cause symptoms at first. However, see your doctor for testing if you notice
- A lump in the vulva
- Vulvar itching or tenderness
- Bleeding that is not your period
- Changes in the vulvar skin, such as color changes or growths that look like a wart or ulcer
You are at greater risk if you've had a human papillomavirus (HPV) infection or have a history of genital warts. Your health care provider diagnoses vulvar cancer with a physical exam and a biopsy. Treatment varies, depending on your overall health and how advanced the cancer is. It might include surgery, radiation therapy, chemotherapy, or biologic therapy. Biologic therapy boosts your body's own ability to fight cancer.
NIH: National Cancer Institute
- After chemotherapy - discharge (Medical Encyclopedia)
- Cancer - vulva (Medical Encyclopedia)
- Pelvic (between the hips) radiation - discharge (Medical Encyclopedia)
- Vaginal and Vulvar Cancer (Centers for Disease Control and Prevention)
[Learn More]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)