abdominal pain left lower quadrant abdominal pain ICD9CM_2005:789.04 An abdominal pain that is characterized by occurring in the left lower quadrant of the abdomen that is often related to the digestive tract, but can also be related to conditions of the body wall, skin, blood vessels, urinary tract, or reproductive organs. symptoms UMLS_ICD9CM_2005_AUI:A0637132 UMLS_CUI:C0238551 SYMP:0000620