Alphabetic Index FY2027

N77.1

Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere

FY2027Chapter 14: Diseases of the genitourinary system/N70–N77 Inflammatory diseases of female pelvic organs

BillableComplete code, valid to report
Care settingsHospice: not accepted as primary

N77.1 (also written N771) is a billable ICD-10-CM diagnosis code for vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 2 codes in category N77 (Vulvovaginal ulceration and inflammation in diseases classified elsewhere). The Alphabetic Index lists it under 1 entry. Its coding notes include a Code first instruction, a Code also instruction, 11 Excludes1 entries and 8 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code
  • underlying disease, such as:

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Also from chapter/block level (1 note)
Inherited from N70–N77 Inflammatory diseases of female pelvic organs
  • , if applicable, pelvic abscess (K6A.0-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • candidal vulvovaginitis (B37.3-)
  • chlamydial vulvovaginitis (A56.02)
  • gonococcal vulvovaginitis (A54.02)
  • herpesviral [herpes simplex] vulvovaginitis (A60.04)
  • trichomonal vulvovaginitis (A59.01)
  • tuberculous vulvovaginitis (A18.18)
  • vulvovaginitis in early syphilis (A51.0)
  • vulvovaginitis in late syphilis (A52.76)
Also from chapter/block level (3 notes)
Inherited from N70–N77 Inflammatory diseases of female pelvic organs
  • 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.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Hospice: not accepted as primary

Not accepted as the principal diagnosis on a hospice claim (bill types 081x and 082x). The Integrated OCE returns an edit for this code.
Reason: Manifestation code. Report the underlying condition first (see the Code first note).

Source: CMS Integrated Outpatient Code Editor (IOCE) v27.3, effective October 1, 2026, edit 86

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 1 entry