ICD-9-CM International Classification of Diseases

780 General symptoms

781 Symptoms involving nervous & musculoskeletal systems
782 Symptoms involving skin & other integumentary tissue
783 Symptoms concerning nutrition, metabolism, & development
784 Symptoms involving head & neck
785 Symptoms involving cardiovascular system
786 Symptoms involving respiratory system & other chest symptoms
787 Symptoms involving digestive system
788 Symptoms involving urinary system
789 Other symptoms involving abdomen & pelvis
790 Nonspecific findings on examination of blood
791 Nonspecific findings on examination of urine
792 Nonspecific abnormal findings in other body substances
793 Nonspecific abnormal findings on radiological & other examination of body structure
794 Nonspecific abnormal results of function studies
795 Nonspecific abnormal histological & immunological findings
796 Other nonspecific abnormal findings
797 Senility without mention of psychosis
798 Sudden death, cause unknown
799 Other ill-defined & unknown causes of morbidity & mortality