Epigastric abdominal rigidity

This code signifies a physical finding of abnormal firmness or stiffness upon palpation of the upper central region of the abdomen. It indicates an involuntary contraction of the abdominal wall muscles in the epigastrium, often a sign of underlying inflammation or irritation of abdominal organs.

Apply this code when documentation explicitly states "epigastric rigidity" or "rigidity of the upper abdomen" as a physical exam finding. This finding is often associated with conditions like acute pancreatitis, peptic ulcer perforation, or cholecystitis. Supporting documentation should include a physical examination note detailing the palpation findings.

• Differentiate from generalized abdominal rigidity (R19.31) or rigidity localized to other abdominal quadrants.
• This code describes a sign/symptom; always code the definitive diagnosis if known and documented.
• Do not use for voluntary guarding or tenderness without actual muscle rigidity.