Abdominal distension (gaseous)

This code signifies a patient's subjective sensation of abdominal fullness or bloating, often accompanied by a visible increase in abdominal girth, primarily due to an accumulation of gas within the gastrointestinal tract. It is a symptom, not a definitive diagnosis of an underlying disease.

Apply this code when documentation explicitly states "abdominal distension," "bloating," or "gaseous distension" without a more specific underlying cause identified at the time of coding. It is appropriate for transient or chronic distension where the primary complaint or finding is gas-related.

• Always seek a more definitive diagnosis if available, as this is a symptom code.
• Do not confuse with ascites (fluid accumulation) or other causes of abdominal enlargement.
• Sequence as a secondary diagnosis if a definitive underlying cause (e.g., irritable bowel syndrome, constipation) is documented.