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18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R00-R09 Symptoms and signs involving the circulatory and respiratory systems (R00-R09)

R00.0-R09.A9
R10-R19 Symptoms and signs involving the digestive system and abdomen (R10-R19)

R10.0-R19.8
R20-R23 Symptoms and signs involving the skin and subcutaneous tissue (R20-R23)

R20.0-R23.9
R25-R29 Symptoms and signs involving the nervous and musculoskeletal systems (R25-R29)

R25.0-R29.91
R30-R39 Symptoms and signs involving the genitourinary system (R30-R39)

R30.0-R39.9
R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)

R40.0-R46.89
R47-R49 Symptoms and signs involving speech and voice (R47-R49)

R47.01-R49.9
R50-R69 General symptoms and signs (R50-R69)

R50.2-R69
R70-R79 Abnormal findings on examination of blood, without diagnosis (R70-R79)

R70.0-R79.9
R80-R82 Abnormal findings on examination of urine, without diagnosis (R80-R82)

R80.0-R82.998
R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis (R83-R89)

R83.0-R89.9
R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)

R90.0-R94.8
R97 Abnormal tumor markers (R97)

R97.0-R97.8
R99 Ill-defined and unknown cause of mortality (R99)

R99-R99