ICD-10-CM · Chapter 18 · R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
679 billable diagnosis codes across 14 code blocks. FY2027 release.
Excludes 2 (not included here)
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
R00-R09 Symptoms and signs involving the circulatory and respiratory systems
- R00 Abnormalities of heart beat
- R01 Cardiac murmurs and other cardiac sounds
- R03 Abnormal blood-pressure reading, without diagnosis
- R04 Hemorrhage from respiratory passages
- R05 Cough
- R06 Abnormalities of breathing
- R07 Pain in throat and chest
- R09 Other symptoms and signs involving the circulatory and respiratory system
R10-R19 Symptoms and signs involving the digestive system and abdomen
- R10 Abdominal and pelvic pain
- R11 Nausea and vomiting
- R12 Heartburn Billable
- R13 Aphagia and dysphagia
- R14 Flatulence and related conditions
- R15 Fecal incontinence
- R16 Hepatomegaly and splenomegaly, not elsewhere classified
- R17 Unspecified jaundice Billable
- R18 Ascites
- R19 Other 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
- R30 Pain associated with micturition
- R31 Hematuria
- R32 Unspecified urinary incontinence Billable
- R33 Retention of urine
- R34 Anuria and oliguria Billable
- R35 Polyuria
- R36 Urethral discharge
- R37 Sexual dysfunction, unspecified Billable
- R39 Other and unspecified symptoms and signs involving the genitourinary system
R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
- R40 Somnolence, stupor and coma
- R41 Other symptoms and signs involving cognitive functions and awareness
- R42 Dizziness and giddiness Billable
- R43 Disturbances of smell and taste
- R44 Other symptoms and signs involving general sensations and perceptions
- R45 Symptoms and signs involving emotional state
- R46 Symptoms and signs involving appearance and behavior
R47-R49 Symptoms and signs involving speech and voice
R50-R69 General symptoms and signs
- R50 Fever of other and unknown origin
- R51 Headache
- R52 Pain, unspecified Billable
- R53 Malaise and fatigue
- R54 Age-related physical debility Billable
- R55 Syncope and collapse Billable
- R56 Convulsions, not elsewhere classified
- R57 Shock, not elsewhere classified
- R58 Hemorrhage, not elsewhere classified Billable
- R59 Enlarged lymph nodes
- R60 Edema, not elsewhere classified
- R61 Generalized hyperhidrosis Billable
- R62 Lack of expected normal physiological development in childhood and adults
- R63 Symptoms and signs concerning food and fluid intake
- R64 Cachexia Billable
- R65 Symptoms and signs specifically associated with systemic inflammation and infection
- R68 Other general symptoms and signs
- R69 Illness, unspecified Billable
R70-R79 Abnormal findings on examination of blood, without diagnosis
- R70 Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity
- R71 Abnormality of red blood cells
- R73 Elevated blood glucose level
- R74 Abnormal serum enzyme levels
- R75 Inconclusive laboratory evidence of human immunodeficiency virus [HIV] Billable
- R76 Other abnormal immunological findings in serum
- R77 Other abnormalities of plasma proteins
- R78 Findings of drugs and other substances, not normally found in blood
- R79 Other abnormal findings of blood chemistry
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
- R83 Abnormal findings in cerebrospinal fluid
- R84 Abnormal findings in specimens from respiratory organs and thorax
- R85 Abnormal findings in specimens from digestive organs and abdominal cavity
- R86 Abnormal findings in specimens from male genital organs
- R87 Abnormal findings in specimens from female genital organs
- R88 Abnormal findings in other body fluids and substances
- R89 Abnormal findings in specimens from other organs, systems and tissues
R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis
- R90 Abnormal findings on diagnostic imaging of central nervous system
- R91 Abnormal findings on diagnostic imaging of lung
- R92 Abnormal and inconclusive findings on diagnostic imaging of breast
- R93 Abnormal findings on diagnostic imaging of other body structures
- R94 Abnormal results of function studies
R97 Abnormal tumor markers
R99 Ill-defined and unknown cause of mortality
Last reviewed: September 2026