ICD-10 Chapter R

Please Take Over This Page and Apply to be Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [1] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.

R00-R69 - Symptoms and signs

(R00-R09) Circulatory and respiratory systems

(R00) Abnormalities of heart beat
- (R00.0) Tachycardia, unspecified
- (R00.1) Bradycardia, unspecified
- (R00.2) Palpitations
- (R00.8) Other and unspecified abnormalities of heart beat
(R01) Cardiac murmurs and other cardiac sounds
- (R01.0) Benign and innocent cardiac murmurs
- (R01.1) Cardiac murmur, unspecified
- (R01.2) Other cardiac sounds
(R02) Gangrene, not elsewhere classified
(R03) Abnormal blood-pressure reading, without diagnosis
- (R03.0) Elevated blood-pressure reading, without diagnosis of hypertension
- (R03.1) Nonspecific low blood-pressure reading
(R04) Haemorrhage from respiratory passages
- (R04.0) Epistaxis
- (R04.1) Haemorrhage from throat
- (R04.2) Haemoptysis
- (R04.8) Haemorrhage from other sites in respiratory passages
- (R04.9) Haemorrhage from respiratory passages, unspecified
(R05) Cough
(R06) Abnormalities of breathing
- (R06.0) Dyspnoea
  - Orthopnoea
- (R06.1) Stridor
- (R06.2) Wheezing
- (R06.3) Periodic breathing
  - Cheyne-Stokes respiration
- (R06.4) Hyperventilation
- (R06.5) Mouth breathing
  - Snoring
- (R06.6) Hiccough
- (R06.7) Sneezing
- (R06.8) Other and unspecified abnormalities of breathing
  - Choking sensation
(R07) Pain in throat and chest
- (R07.0) Pain in throat
- (R07.1) Chest pain on breathing
- (R07.2) Precordial pain
- (R07.3) Other chest pain
- (R07.4) Chest pain, unspecified
(R09) Other symptoms and signs involving the circulatory and respiratory systems
- (R09.0) Asphyxia
- (R09.1) Pleurisy
- (R09.2) Respiratory arrest
- (R09.3) Abnormal sputum
- (R09.8) Other specified symptoms and signs involving the circulatory and respiratory systems
  - Rales
  - Arterial Bruit

(R10-R19) Digestive system and abdomen

(R10) Abdominal and pelvic pain
- (R10.0) Acute abdomen
- (R10.1) Pain localized to upper abdomen
- (R10.2) Pelvic and perineal pain
- (R10.3) Pain localized to other parts of lower abdomen
- (R10.4) Other and unspecified abdominal pain
(R11) Nausea and vomiting
(R12) Heartburn
(R13) Dysphagia
(R14) Flatulence and related conditions
- Eructation
(R15) Faecal incontinence
- Encopresis
(R16) Hepatomegaly and splenomegaly, not elsewhere classified
- (R16.0) Hepatomegaly, not elsewhere classified
- (R16.1) Splenomegaly, not elsewhere classified
- (R16.2) Hepatomegaly with splenomegaly, not elsewhere classified
  - Hepatosplenomegaly NOS

(R17) Unspecified jaundice
(R18) Ascites
(R19) Other symptoms and signs involving the digestive system and abdomen
- (R19.0) Intra-abdominal and pelvic swelling, mass and lump
- (R19.1) Abnormal bowel sounds
- (R19.2) Visible peristalsis
- (R19.3) Abdominal rigidity
- (R19.4) Change in bowel habit
- (R19.5) Other faecal abnormalities
- (R19.6) Halitosis
- (R19.8) Other specified symptoms and signs involving the digestive system and abdomen

(R20-R23) Skin and subcutaneous tissue

(R20) Disturbances of skin sensation
- (R20.0) Anaesthesia of skin
- (R20.1) Hypoaesthesia of skin
- (R20.2) Paraesthesia of skin
- (R20.3) Hyperaesthesia
- (R20.8) Other and unspecified disturbances of skin sensation
(R21) Rash and other nonspecific skin eruption
(R22) Localized swelling, mass and lump of skin and subcutaneous tissue
(R23) Other skin changes
- (R23.0) Cyanosis
- (R23.1) Pallor
- (R23.2) Flushing
- (R23.3) Spontaneous ecchymoses
  - Petechiae
- (R23.4) Changes in skin texture
  - Desquamation
  - Induration
- (R23.8) Other and unspecified skin changes

(R25-R29) Nervous and musculoskeletal systems

(R25) Abnormal involuntary movements
- (R25.0) Abnormal head movements
- (R25.1) Tremor, unspecified
- (R25.2) Cramp and spasm
- (R25.3) Fasciculation
- (R25.8) Other and unspecified abnormal involuntary movements
(R26) Abnormalities of gait and mobility
- (R26.0) Ataxic gait
- (R26.1) Paralytic gait
- (R26.2) Difficulty in walking, not elsewhere classified
- (R26.8) Other and unspecified abnormalities of gait and mobility
(R27) Other lack of coordination
- (R27.0) Ataxia, unspecified
- (R27.8) Other and unspecified lack of coordination
(R29) Other symptoms and signs involving the nervous and musculoskeletal systems
- (R29.0) Tetany
- (R29.1) Meningismus
- (R29.2) Abnormal reflex
  - Hyperreflexia
- (R29.3) Abnormal posture
- (R29.4) Clicking hip
- (R29.8) Other and unspecified symptoms and signs involving the nervous and musculoskeletal systems

(R30-R39) Urinary system

(R30) Pain associated with micturition
- (R30.0) Dysuria
- (R30.1) Vesical tenesmus
- (R30.9) Painful micturition, unspecified
(R31) Unspecified haematuria
(R32) Unspecified urinary incontinence
(R33) Retention of urine
(R34) Anuria and oliguria
(R35) Polyuria
- Nocturia
(R36) Urethral discharge
(R39) Other symptoms and signs involving the urinary system
- (R39.0) Extravasation of urine
- (R39.1) Other difficulties with micturition
- (R39.2) Extrarenal uraemia
- (R39.8) Other and unspecified symptoms and signs involving the urinary system

(R40-R46) Cognition, perception, emotional state and behaviour

(R40) Somnolence, stupor and coma
- (R40.0) Somnolence
- (R40.1) Stupor
- (R40.2) Coma, unspecified
(R41) Other symptoms and signs involving cognitive functions and awareness
- (R41.0) Disorientation, unspecified
- (R41.1) Anterograde amnesia
- (R41.2) Retrograde amnesia
- (R41.3) Other amnesia
- (R41.8) Other and unspecified symptoms and signs involving cognitive functions and awareness
(R42) Dizziness and giddiness
- Vertigo NOS
(R43) Disturbances of smell and taste
- (R43.0) Anosmia
- (R43.1) Parosmia
- (R43.2) Parageusia
- (R43.8) Other and unspecified disturbances of smell and taste
(R44) Other symptoms and signs involving general sensations and perceptions
- (R44.0) Auditory hallucinations
- (R44.1) Visual hallucinations
- (R44.2) Other hallucinations
- (R44.3) Hallucinations, unspecified
- (R44.8) Other and unspecified symptoms and signs involving general sensations and perceptions
(R45) Symptoms and signs involving emotional state
- (R45.0) Nervousness
- (R45.1) Restlessness and agitation
- (R45.2) Unhappiness
- (R45.3) Demoralization and apathy
- (R45.4) Irritability and anger
- (R45.5) Hostility
- (R45.6) Physical violence
- (R45.7) State of emotional shock and stress, unspecified
- (R45.8) Other symptoms and signs involving emotional state
(R46) Symptoms and signs involving appearance and behaviour
- (R46.0) Very low level of personal hygiene
- (R46.1) Bizarre personal appearance
- (R46.2) Strange and inexplicable behaviour
- (R46.3) Overactivity
- (R46.4) Slowness and poor responsiveness
- (R46.5) Suspiciousness and marked evasiveness
- (R46.6) Undue concern and preoccupation with stressful events
- (R46.7) Verbosity and circumstantial detail obscuring reason for contact
- (R46.8) Other symptoms and signs involving appearance and behaviour

(R47-R49) Speech and voice

(R47) Speech disturbances, not elsewhere classified
- (R47.0) Dysphasia and aphasia
- (R47.1) Dysarthria and anarthria
- (R47.8) Other and unspecified speech disturbances

(R48) Dyslexia and other symbolic dysfunctions, not elsewhere classified
- (R48.0) Dyslexia and alexia
- (R48.1) Agnosia
- (R48.2) Apraxia
- (R48.8) Other and unspecified symbolic dysfunctions
  - Acalculia
  - Agraphia

(R49) Voice disturbances
- (R49.0) Dysphonia
- (R49.1) Aphonia
- (R49.2) Hypernasality and hyponasality
- (R49.8) Other and unspecified voice disturbances

(R50-R69) General symptoms and signs

(R50) Fever of unknown origin
- (R50.0) Fever with chills
- (R50.1) Persistent fever
- (R50.9) Fever, unspecified

(R51) Headache

(R52) Pain, not elsewhere classified
- (R52.0) Acute pain
- (R52.1) Chronic intractable pain
- (R52.2) Other chronic pain
- (R52.9) Pain, unspecified

(R53) Malaise and fatigue

(R54) Senility

(R55) Syncope and collapse

(R56) Convulsions, not elsewhere classified
- (R56.0) Febrile convulsions
- (R56.8) Other and unspecified convulsions

(R57) Shock, not elsewhere classified
- (R57.0) Cardiogenic shock
- (R57.1) Hypovolaemic shock
- (R57.8) Other shock
- (R57.9) Shock, unspecified

(R58) Haemorrhage, not elsewhere classified

(R59) Enlarged lymph nodes
- (R59.0) Localized enlarged lymph nodes
- (R59.1) Generalized enlarged lymph nodes
  - Lymphadenopathy NOS

(R60) Oedema, not elsewhere classified
- (R60.0) Localized oedema
  - Peripheral edema
- (R60.1) Generalized oedema
- (R60.9) Oedema, unspecified

(R61) Hyperhidrosis
- (R61.0) Localized hyperhidrosis
- (R61.1) Generalized hyperhidrosis
- (R61.9) Hyperhidrosis, unspecified
  - Night sweats

(R62) Lack of expected normal physiological development
- (R62.0) Delayed milestone
- (R62.8) Other lack of expected normal physiological development
  - Lack of growth
- (R62.9) Lack of expected normal physiological development, unspecified

(R63) Symptoms and signs concerning food and fluid intake
- (R63.0) Anorexia
- (R63.1) Polydipsia
- (R63.2) Polyphagia
- (R63.3) Feeding difficulties and mismanagement
- (R63.4) Abnormal weight loss
- (R63.5) Abnormal weight gain
- (R63.8) Other symptoms and signs concerning food and fluid intake

(R64) Cachexia

(R68) Other general symptoms and signs
- (R68.0) Hypothermia, not associated with low environmental temperature
- (R68.1) Nonspecific symptoms peculiar to infancy
- (R68.2) Dry mouth, unspecified
- (R68.3) Clubbing of fingers
- (R68.8) Other specified general symptoms and signs

(R69) Unknown and unspecified causes of morbidity

R70-R99 - Abnormal clinical and laboratory findings, not elsewhere classified

(R70-R79) On examination of blood, without diagnosis

(R70) Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity
- (R70.0) Elevated erythrocyte sedimentation rate
- (R70.1) Abnormal plasma viscosity

(R71) Abnormality of red blood cells
- Anisocytosis
- Poikilocytosis

(R72) Abnormality of white blood cells, not elsewhere classified

(R73) Elevated blood glucose level
- (R73.0) Abnormal glucose tolerance test
  - Impaired glucose tolerance
  - Prediabetes
- (R73.9) Hyperglycaemia, unspecified

(R74) Abnormal serum enzyme levels
- (R74.0) Elevation of levels of transaminase and lactic acid dehydrogenase (LDH)]]
- (R74.8) Abnormal levels of other serum enzymes
- (R74.9) Abnormal level of unspecified serum enzyme

(R75) Laboratory evidence of human immunodeficiency virus (HIV)

(R76) Other abnormal immunological findings in serum
- (R76.0) Raised antibody titre
- (R76.1) Abnormal reaction to tuberculin test
- (R76.2) False-positive serological test for syphilis
- (R76.8) Other specified abnormal immunological findings in serum
- (R76.9) Abnormal immunological finding in serum, unspecified

(R77) Other abnormalities of plasma proteins
- (R77.0) Abnormality of albumin
- (R77.1) Abnormality of globulin
- (R77.2) Abnormality of alphafetoprotein
- (R77.8) Other specified abnormalities of plasma proteins
- (R77.9) Abnormality of plasma protein, unspecified

(R78) Findings of drugs and other substances, not normally found in blood
- (R78.0) Finding of alcohol in blood
- (R78.1) Finding of opiate drug in blood
- (R78.2) Finding of cocaine in blood
- (R78.3) Finding of hallucinogen in blood
- (R78.4) Finding of other drugs of addictive potential in blood
- (R78.5) Finding of psychotropic drug in blood
- (R78.6) Finding of steroid agent in blood
- (R78.7) Finding of abnormal level of heavy metals in blood
- (R78.8) Finding of other specified substances, not normally found in blood
- (R78.9) Finding of unspecified substance, not normally found in blood

(R79) Other abnormal findings of blood chemistry
- (R79.0) Abnormal level of blood mineral
- (R79.8) Other specified abnormal findings of blood chemistry
  - Abnormal blood-gas level
- (R79.9) Abnormal finding of blood chemistry, unspecified

(R80-R82) On examination of urine, without diagnosis

(R80) Isolated proteinuria
- Albuminuria
(R81) Glycosuria
(R82) Other abnormal findings in urine
- (R82.0) Chyluria
- (R82.1) Myoglobinuria
- (R82.2) Biliuria
- (R82.3) Haemoglobinuria
- (R82.4) Acetonuria
  - Ketonuria
- (R82.5) Elevated urine levels of drugs, medicaments and biological substances
- (R82.6) Abnormal urine levels of substances chiefly nonmedicinal as to source
- (R82.7) Abnormal findings on microbiological examination of urine
- (R82.8) Abnormal findings on cytological and histological examination of urine
- (R82.9) Other and unspecified abnormal findings in urine
  - Cells and casts in urine
  - Crystalluria
  - Melanuria

(R83-R89) 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
(R89) Abnormal findings in specimens from other organs, systems and tissues

(R90-R94) On diagnostic imaging and in function studies, without diagnosis

(R90) Abnormal findings on diagnostic imaging of central nervous system
- (R90.0) Intracranial space-occupying lesion
- (R90.8) Other abnormal findings on diagnostic imaging of central nervous system
(R91) Abnormal findings on diagnostic imaging of lung
(R92) Abnormal findings on diagnostic imaging of breast
(R93) Abnormal findings on diagnostic imaging of other body structures
- (R93.0) Abnormal findings on diagnostic imaging of skull and head, not elsewhere classified
- (R93.1) Abnormal findings on diagnostic imaging of heart and coronary circulation
- (R93.2) Abnormal findings on diagnostic imaging of liver and biliary tract
- (R93.3) Abnormal findings on diagnostic imaging of other parts of digestive tract
- (R93.4) Abnormal findings on diagnostic imaging of urinary organs
- (R93.5) Abnormal findings on diagnostic imaging of other abdominal regions, including retroperitoneum
- (R93.6) Abnormal findings on diagnostic imaging of limbs
- (R93.7) Abnormal findings on diagnostic imaging of other parts of musculoskeletal system
- (R93.8) Abnormal findings on diagnostic imaging of other specified body structures
(R94) Abnormal results of function studies
- (R94.0) Abnormal results of function studies of central nervous system
  - Abnormal electroencephalogram
- (R94.1) Abnormal results of function studies of peripheral nervous system and special senses
- (R94.2) Abnormal results of pulmonary function studies
  - Reduced vital capacity
- (R94.3) Abnormal results of cardiovascular function studies
  - Abnormal electrocardiogram
- (R94.4) Abnormal results of kidney function studies
  - Abnormal renal function test
- (R94.5) Abnormal results of liver function studies
- (R94.6) Abnormal results of thyroid function studies
- (R94.7) Abnormal results of other endocrine function studies
- (R94.8) Abnormal results of function studies of other organs and systems
  - Abnormal basal metabolic rate (BMR)

R95-R99 - Ill-defined and unknown causes of mortality

(R95) Sudden infant death syndrome
(R96) Other sudden death, cause unknown
- (R96.0) Instantaneous death
- (R96.1) Death occurring less than 24 hours from onset of symptoms, not otherwise explained
(R98) Unattended death
(R99) Other ill-defined and unspecified causes of mortality

v t e Symptoms and signs: circulatory (R00–R03, 785)
Cardiovascular	Template:Navbox subgroup
Myeloid/blood	Template:Navbox subgroup

v t e Symptoms and signs: respiratory system (R04–R07, 786)
Hemorrhage	Epistaxis Hemoptysis
Abnormalities of breathing	Respiratory sounds Stridor Wheeze Crackles Rhonchi Hamman's sign Apnea Dyspnea Hyperventilation/Hypoventilation Hyperpnea/Tachypnea/Hypopnea/Bradypnea Orthopnea/Platypnea Trepopnea Biot's respiration Cheyne-Stokes respiration Kussmaul breathing Hiccup Mouth breathing/Snoring Breath-holding
Other	Asphyxia Cough Pleurisy Sputum Respiratory arrest Hypercapnia/Hypocapnia Pectoriloquy: Whispered pectoriloquy Egophony Bronchophony Pleural friction rub Fremitus Silhouette sign
Chest, general	Chest pain Precordial catch syndrome

v t e Symptoms and signs: digestive system and abdomen (R10–R19, 787,789)
GI tract	Template:Navbox subgroup
Accessory	Hepatosplenomegaly/Hepatomegaly Jaundice
Abdominopelvic	Ascites
Abdominal – general	Abdominal pain (Acute abdomen, Colic, Baby colic) Splenomegaly Abdominal guarding · Abdominal mass · Rebound tenderness Shifting dullness · Bulging flanks · Puddle sign · Fluid wave test

v t e Symptoms and signs: Symptoms concerning nutrition, metabolism and development (R62–R64, 783)
Ingestion/Weight	decrease: Anorexia • Weight loss/Cachexia/Underweight increase: Polyphagia • Polydipsia • Orexigenia • Weight gain
Growth	Delayed milestone • Failure to thrive • Short stature (e.g., Idiopathic)