ICD-10 Code B37.0 – Candidal stomatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B37.0 – Candidal stomatitis
What it is
B37.0 identifies candidal stomatitis, a Candida infection of the mouth. It is used when documentation states oral thrush or another candidal infection limited to the oral mucosa.
Clinical signs
Typical findings include white, curd-like plaques on the tongue, cheeks, or palate that may scrape off and leave a red surface. Clinical features vary; refer to documentation.
When to use this code
Use B37.0 when the provider documents candidal stomatitis, oral thrush, or Candida infection of the mouth. Code it when the infection is described as oral and not primarily esophageal, systemic, or another site. If the record is unclear about location, check documentation.
Do not use for
Do not use this code for candidiasis at another anatomic site, such as esophagus, skin, or vulva. Do not assign it if the chart only says “thrush” without confirming oral involvement.
Coding tip
Confirm the infection site in the note; B37.0 requires oral involvement, not a general Candida diagnosis.