ICD-10-CM · Chapter 18 · R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
89 categories
Category titles are WHO ICD-10 titles for the same three characters; open a category for the ICD-10-CM codes in it.
- R00Abnormalities of heart beat5 codes
- R01Cardiac murmurs and other cardiac sounds3 codes
- R03Abnormal blood-pressure reading, without diagnosis2 codes
- R04Haemorrhage from respiratory passages6 codes
- R05Cough6 codes
- R06Abnormalities of breathing17 codes
- R07Pain in throat and chest7 codes
- R09Other symptoms and signs involving the circulatory and respiratory systems12 codes
- R10Abdominal and pelvic pain42 codes
- R11Nausea and vomiting9 codes
- R12Heartburn1 codes
- R13Dysphagia7 codes
- R14Flatulence and related conditions4 codes
- R15Faecal incontinence4 codes
- R16Hepatomegaly and splenomegaly, not elsewhere classified3 codes
- R17Hyperbilirubinaemia, with or without jaundice, not elsewhere classified1 codes
- R18Ascites2 codes
- R19Other symptoms and signs involving the digestive system and abdomen26 codes
- R20Disturbances of skin sensation6 codes
- R21Rash and other nonspecific skin eruption1 codes
- R22Localized swelling, mass and lump of skin and subcutaneous tissue12 codes
- R23Other skin changes7 codes
- R25Abnormal involuntary movements6 codes
- R26Abnormalities of gait and mobility6 codes
- R27Other lack of coordination3 codes
- R29Other symptoms and signs involving the nervous and musculoskeletal systems57 codes
- R30Pain associated with micturition3 codes
- R31Unspecified haematuria5 codes
- R32Unspecified urinary incontinence1 codes
- R33Retention of urine3 codes
- R34Anuria and oliguria1 codes
- R35Polyuria4 codes
- R36Urethral discharge3 codes
- R37Sexual dysfunction, unspecified1 codes
- R39Other symptoms and signs involving the urinary system21 codes
- R40Somnolence, stupor and coma101 codes
- R41Other symptoms and signs involving cognitive functions and awareness16 codes
- R42Dizziness and giddiness1 codes
- R43Disturbances of smell and taste5 codes
- R44Other symptoms and signs involving general sensations and perceptions6 codes
- R45Symptoms and signs involving emotional state18 codes
- R46Symptoms and signs involving appearance and behaviour10 codes
- R47Speech disturbances, not elsewhere classified7 codes
- R48Dyslexia and other symbolic dysfunctions, not elsewhere classified6 codes
- R49Voice disturbances6 codes
- R50Fever of other and unknown origin6 codes
- R51Headache2 codes
- R52Pain, not elsewhere classified1 codes
- R53Malaise and fatigue6 codes
- R54Senility1 codes
- R55Syncope and collapse1 codes
- R56Convulsions, not elsewhere classified4 codes
- R57Shock, not elsewhere classified4 codes
- R58Haemorrhage, not elsewhere classified1 codes
- R59Enlarged lymph nodes3 codes
- R60Oedema, not elsewhere classified3 codes
- R61Hyperhidrosis1 codes
- R62Lack of expected normal physiological development6 codes
- R63Symptoms and signs concerning food and fluid intake11 codes
- R64Cachexia1 codes
- R65Systemic Inflammatory Response Syndrome [SIRS]4 codes
- R68Other general symptoms and signs12 codes
- R69Unknown and unspecified causes of morbidity1 codes
- R70Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity2 codes
- R71Abnormality of red blood cells2 codes
- R73Elevated blood glucose level5 codes
- R74Abnormal serum enzyme levels4 codes
- R75Laboratory evidence of human immunodeficiency virus [HIV]1 codes
- R76Other abnormal immunological findings in serum6 codes
- R77Other abnormalities of plasma proteins5 codes
- R78Findings of drugs and other substances, not normally found in blood12 codes
- R79Other abnormal findings of blood chemistry7 codes
- R80Isolated proteinuria6 codes
- R81Glycosuria1 codes
- R82Other abnormal findings in urine18 codes
- R83Abnormal findings in cerebrospinal fluid9 codes
- R84Abnormal findings in specimens from respiratory organs and thorax10 codes
- R85Abnormal findings in specimens from digestive organs and abdominal cavity21 codes
- R86Abnormal findings in specimens from male genital organs10 codes
- R87Abnormal findings in specimens from female genital organs31 codes
- R88Cloudy (hemodialysis) (peritoneal) dialysis effluent2 codes
- R89Abnormal findings in specimens from other organs, systems and tissues10 codes
- R90Abnormal findings on diagnostic imaging of central nervous system4 codes
- R91Abnormal findings on diagnostic imaging of lung2 codes
- R92Abnormal findings on diagnostic imaging of breast17 codes
- R93Abnormal findings on diagnostic imaging of other body structures18 codes
- R94Abnormal results of function studies23 codes
- R97Elevated carcinoembryonic antigen [CEA]5 codes
- R99Other ill-defined and unspecified causes of mortality1 codes
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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