Left lower quadrant abdominal rigidity

📋Clinical Description

This code signifies a palpable stiffness or tenseness of the abdominal muscles specifically in the left lower quadrant, indicative of an underlying inflammatory or irritative process. It is a physical exam finding, often associated with peritoneal irritation.

🎯When to Use

Apply this code when documentation explicitly states "left lower quadrant rigidity" or "LLQ rigidity" as a physical exam finding. This finding is commonly observed in conditions such as diverticulitis, left-sided appendicitis (rare), or other localized peritonitis in the left lower abdomen.

💡Coding Tips

Do not confuse with tenderness (R10.32) or guarding (R19.37); rigidity implies involuntary muscle spasm.
Always sequence after the definitive diagnosis if known (e.g., K57.30 for diverticulitis).
Ensure the documentation clearly specifies "rigidity" and the "left lower quadrant."

AI-generated reference — verify against official guidelines

Code Hierarchy

▲R19.3Abdominal rigidity

R19.34(current)

Crosswalks

789.44ExactICD-9 789.44ExactICD-9

Same Category

R19Oth symptoms and signs involving the dgstv sys and abdomen R19.0Intra-abdominal and pelvic swelling, mass and lump R19.00Intra-abd and pelvic swelling, mass and lump, unsp site R19.01