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R00-R99

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Chapter 18

Includes symptoms, signs, and abnormal clinical findings not elsewhere classified, organized by body system.

Additional Information

From parent codes: R00-R99 (Chapter 18)

Excludes 2 — Not Included HereFrom R00-R99

Excludes2 means 'NOT INCLUDED HERE!' An Excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time.

  • 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)
NotesFrom R00-R99

Additional notes from parent codes that apply to this code.

  • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
  • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
  • The conditions and signs or symptoms included in categories R00-R94 consist of:
  • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
  • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
  • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
  • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
  • (e) cases in which a more precise diagnosis was not available for any other reason;
  • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

Codes in this Chapter (89)

R00Abnormalities of heart beat5 codes→R01Cardiac murmurs and other cardiac sounds3 codes→R03Abnormal blood-pressure reading, without diagnosis2 codes→R04Hemorrhage from respiratory passages5 codes→R05Cough6 codes→R06Abnormalities of breathing10 codes→R07Pain in throat and chest5 codes→R09Other symptoms and signs involving the circulatory and respiratory system6 codes→R10Abdominal and pelvic pain6 codes→R11Nausea and vomiting3 codes→R12Heartburn→R13Aphagia and dysphagia2 codes→R14Flatulence and related conditions4 codes→R15Fecal incontinence4 codes→R16Hepatomegaly and splenomegaly, not elsewhere classified3 codes→R17Unspecified jaundice→R18Ascites2 codes→R19Other symptoms and signs involving the digestive system and abdomen9 codes→R20Disturbances of skin sensation6 codes→R21Rash and other nonspecific skin eruption→R22Localized swelling, mass and lump of skin and subcutaneous tissue6 codes→R23Other skin changes7 codes→R25Abnormal involuntary movements6 codes→R26Abnormalities of gait and mobility5 codes→R27Other lack of coordination3 codes→R29Other symptoms and signs involving the nervous and musculoskeletal systems10 codes→R30Pain associated with micturition3 codes→R31Hematuria4 codes→R32Unspecified urinary incontinence→R33Retention of urine3 codes→R34Anuria and oliguria→R35Polyuria3 codes→R36Urethral discharge3 codes→R37Sexual dysfunction, unspecified→R39Other and unspecified symptoms and signs involving the genitourinary system5 codes→R40Somnolence, stupor and coma5 codes→R41Other symptoms and signs involving cognitive functions and awareness7 codes→R42Dizziness and giddiness→R43Disturbances of smell and taste5 codes→R44Other symptoms and signs involving general sensations and perceptions6 codes→R45Symptoms and signs involving emotional state9 codes→R46Symptoms and signs involving appearance and behavior9 codes→R47Speech disturbances, not elsewhere classified4 codes→R48Dyslexia and other symbolic dysfunctions, not elsewhere classified6 codes→R49Voice and resonance disorders5 codes→R50Fever of other and unknown origin3 codes→R51Headache2 codes→R52Pain, unspecified→R53Malaise and fatigue4 codes→R54Age-related physical debility→R55Syncope and collapse→R56Convulsions, not elsewhere classified3 codes→R57Shock, not elsewhere classified4 codes→R58Hemorrhage, not elsewhere classified→R59Enlarged lymph nodes3 codes→R60Edema, not elsewhere classified3 codes→R61Generalized hyperhidrosis→R62Lack of expected normal physiological development in childhood and adults3 codes→R63Symptoms and signs concerning food and fluid intake8 codes→R64Cachexia→R65Symptoms and signs specifically associated with systemic inflammation and infection2 codes→R68Other general symptoms and signs5 codes→R69Illness, unspecified→R70Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity2 codes→R71Abnormality of red blood cells2 codes→R73Elevated blood glucose level2 codes→R74Abnormal serum enzyme levels3 codes→R75Inconclusive laboratory evidence of human immunodeficiency virus [HIV]→R76Other abnormal immunological findings in serum4 codes→R77Other abnormalities of plasma proteins5 codes→R78Findings of drugs and other substances, not normally found in blood10 codes→R79Other abnormal findings of blood chemistry4 codes→R80Proteinuria6 codes→R81Glycosuria→R82Other and unspecified abnormal findings in urine10 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 cavity10 codes→R86Abnormal findings in specimens from male genital organs10 codes→R87Abnormal findings in specimens from female genital organs10 codes→R88Abnormal findings in other body fluids and substances2 codes→R89Abnormal findings in specimens from other organs, systems and tissues10 codes→R90Abnormal findings on diagnostic imaging of central nervous system2 codes→R91Abnormal findings on diagnostic imaging of lung2 codes→R92Abnormal and inconclusive findings on diagnostic imaging of breast5 codes→R93Abnormal findings on diagnostic imaging of other body structures10 codes→R94Abnormal results of function studies9 codes→R97Abnormal tumor markers4 codes→R99Ill-defined and unknown cause of mortality→