ICD-10 Codes Chapter 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
- R10-R19 Symptoms and signs involving the digestive system and abdomen
- R20-R23 Symptoms and signs involving the skin and subcutaneous tissue
- R25-R29 Symptoms and signs involving the nervous and musculoskeletal systems
- R30-R39 Symptoms and signs involving the genitourinary system
- R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
- R47-R49 Symptoms and signs involving speech and voice
- R50-R69 General symptoms and signs
- R70-R79 Abnormal findings on examination of blood, without diagnosis
- R80-R82 Abnormal findings on examination of urine, without diagnosis
- R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
- R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis
- R97 Abnormal tumor markers
- R99 Ill-defined and unknown cause of mortality
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