ICD-10 Code K46 – Unspecified abdominal hernia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K46 – Unspecified abdominal hernia
What it is
K46 identifies an abdominal hernia when the record does not specify the exact type or site. It is used for a protrusion of tissue through a weakness in the abdominal wall, but the documentation is incomplete.
Clinical signs
Typical findings include a visible or palpable abdominal bulge, discomfort, or pain that may worsen with coughing or straining. Clinical features vary; refer to documentation.
When to use this code
Use K46 when the provider documents an abdominal hernia but does not name the location, such as umbilical, inguinal, or ventral. It also fits when the note confirms a hernia, but the type is still under evaluation. Check documentation if the site is later clarified.
Do not use for
Do not use K46 if the record specifies a different hernia type or an incarcerated, strangulated, or recurrent hernia with a more specific code. Do not use it for abdominal wall pain without a documented hernia.
Coding tip
Query the provider for the exact hernia type and site whenever the note is vague; unspecified codes should be a last resort.