Is ICD-10-CM code N77 billable?

No, N77 (Vulvovaginal ulceration and inflammation in diseases classified elsewhere) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code N77 belong to?

N77 belongs to Chapter 14 of the ICD-10-CM tabular list: N00–N99 (Diseases of the Genitourinary System).

N77Not billable, use a more specific code below

Vulvovaginal ulceration and inflammation in diseases classified elsewhere

In Inflammatory diseases of female pelvic organs (N70-N77), chapter 14: Diseases of the Genitourinary System

2 billable codes under N77: none are a CC or MCC; none map to an HCC.

Instructional notes

Also applies, from Inflammatory diseases of female pelvic organs (N70-N77)

These notes sit on N70-N77 and apply to every code under it, including N77.

Excludes1: not coded here, use a different code

inflammatory diseases of female pelvic organs complicating:
abortion or ectopic or molar pregnancy (O00-O07, O08.0)
pregnancy, childbirth and the puerperium (O23.-, O75.3, O85, O86.-)

Code also: add a code for this too, order depends on the encounter

if applicable, pelvic abscess (K6A.0-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.

Chronic kidney disease (page 62)

Read Section I.C.14 (page 62)

All codes under N77

N77 can't be used on a claim. Pick a billable code below; grey headings group them.

N77 MS-DRGs

As the principal diagnosis, the billable codes under N77 group to these 7 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 742 Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC (2 of 2 codes)
DRG 743 Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC (2 of 2 codes)
DRG 757 Infections, Female Reproductive System with MCC (1 of 2 codes)
DRG 758 Infections, Female Reproductive System with CC (1 of 2 codes)
DRG 759 Infections, Female Reproductive System without CC/MCC (1 of 2 codes)
DRG 760 Menstrual and Other Female Reproductive System Disorders with CC/MCC (1 of 2 codes)
DRG 761 Menstrual and Other Female Reproductive System Disorders without CC/MCC (1 of 2 codes)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Vaginal Diseases

Vaginal problems are some of the most common reasons women go to the doctor. They may have symptoms such as: One common problem is vaginitis, an inflammation of the vagina. Other problems that affect the vagina include sexually transmitted infections (STIs), vaginal cancer, and vulvar cancer. Treatment of vaginal problems depends on the cause.

Vulvar Disorders

The vulva is the outer part of the female genitals. This includes the clitoris, vaginal lips, and the opening to the vagina. A vulvar disorder is a health problem that affects your vulva. These problems may cause pain, itching, or skin changes of the vulva. Treatment depends on the cause.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.