ICD-10 Code B37.31 – Acute candidiasis of vulva and vagina (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B37.31 – Acute candidiasis of vulva and vagina
What it is
This code identifies an acute Candida infection involving the vulva and vagina. It is used when the record documents vulvovaginal candidiasis, commonly called a yeast infection.
Clinical signs
Typical findings include vulvar itching, irritation, soreness, and abnormal vaginal discharge. Clinical features vary; refer to documentation for exam findings consistent with Candida infection.
When to use this code
Use B37.31 when the clinician documents acute vulvovaginal candidiasis, yeast vaginitis, or Candida infection of the vulva and vagina. Code it when the diagnosis is confirmed or clearly stated in the chart. If the note is nonspecific, check documentation before assigning the code.
Do not use for
Do not use this code for non-Candida vaginitis, bacterial vaginosis, or unspecified vaginal irritation. If the record does not support Candida involvement, check documentation.
Coding tip
Assign B37.31 only when the provider links the infection to the vulva and vagina, not to a different Candida site.