ICD-10 Code K30 – Functional dyspepsia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K30 – Functional dyspepsia
What it is
K30 identifies functional dyspepsia, a chronic upper abdominal digestive disorder without a clear structural cause. It is used when symptoms fit dyspepsia and no other diagnosis explains them.
Clinical signs
Typical findings include epigastric pain or burning, early satiety, postprandial fullness, and bloating. Clinical features vary; refer to documentation.
When to use this code
Use K30 when the provider documents functional dyspepsia or dyspepsia with no identified organic disease after evaluation. It may apply to persistent upper abdominal discomfort, fullness, or pain when workup does not support another gastrointestinal diagnosis. Check documentation if another condition better explains the symptoms.
Do not use for
Do not use K30 when symptoms are due to peptic ulcer disease, GERD, gallbladder disease, or another documented disorder. Avoid it if the record supports a more specific diagnosis.
Coding tip
Code K30 only when the provider clearly links the symptoms to functional dyspepsia and no alternate cause is documented.