ICD-10 Chapter XVIII: Symptoms, signs and abnormal clinical and laboratory findings
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| Chapter | Block | Title |
|---|---|---|
| I | A00–B99 | Certain infectious and parasitic diseases |
| II | C00–D48 | Neoplasms |
| III | D50–D89 | Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism |
| IV | E00–E90 | Endocrine, nutritional and metabolic diseases |
| V | F00–F99 | Mental and behavioural disorders |
| VI | G00–G99 | Diseases of the nervous system |
| VII | H00–H59 | Diseases of the eye and adnexa |
| VIII | H60–H95 | Diseases of the ear and mastoid process |
| IX | I00–I99 | Diseases of the circulatory system |
| X | J00–J99 | Diseases of the respiratory system |
| XI | K00–K93 | Diseases of the digestive system |
| XII | L00–L99 | Diseases of the skin and subcutaneous tissue |
| XIII | M00–M99 | Diseases of the musculoskeletal system and connective tissue |
| XIV | N00–N99 | Diseases of the genitourinary system |
| XV | O00–O99 | Pregnancy, childbirth and the puerperium |
| XVI | P00–P96 | Certain conditions originating in the perinatal period |
| XVII | Q00–Q99 | Congenital malformations, deformations and chromosomal abnormalities |
| XVIII | R00–R99 | Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified |
| XIX | S00–T98 | Injury, poisoning and certain other consequences of external causes |
| XX | V01–Y98 | External causes of morbidity and mortality |
| XXI | Z00–Z99 | Factors influencing health status and contact with health services |
| XXII | U00–U99 | Codes for special purposes |
This is a shortened version of the eighteenth chapter of the ICD-10: Symptoms, signs and abnormal clinical and laboratory findings. It covers ICD codes R00.0 to R99. All versions of the ICD-10, including the most recent one (2019), can be browsed freely on the website of the World Health Organisation (WHO). The ICD-10 can also be downloaded in PDF-form.
Examples of information captured using codes from Chapter XVIII include dysuria, seizures, hyperglycaemia, and sudden infant death syndrome.
Circulatory and respiratory systems (R00–R09)[edit]
- 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
- Cardiac bruit NOS
- 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
- 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
Digestive system and abdomen (R10–R19)[edit]
- 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
- Abdominal tenderness NOS
- Colic, NOS
- infantile colic
- R11 Nausea and vomiting
- R12 Heartburn
- R13 Dysphagia
- R14 Flatulence and related conditions
- Abdominal distension (gaseous)
- Bloating
- Eructation
- Gas pain
- Tympanites (abdominal)(intestinal)
- R15 Faecal incontinence
- 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
- 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
Skin and subcutaneous tissue (R20–R23)[edit]
- 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
- R22.0 Localized swelling, mass and lump, head
- R22.1 Localized swelling, mass and lump, neck
- R22.2 Localized swelling, mass and lump, trunk
- R22.3 Localized swelling, mass and lump, upper limb
- R22.4 Localized swelling, mass and lump, lower limb
- R22.7 Localized swelling, mass and lump, multiple sites
- R22.9 Localized swelling, mass and lump, unspecified
- R23 Other skin changes
- R23.0 Cyanosis
- R23.1 Pallor
- R23.2 Flushing
- R23.3 Spontaneous ecchymoses
- R23.4 Changes in skin texture
- R23.8 Other and unspecified skin changes
Nervous and musculoskeletal systems (R25–R29)[edit]
- 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
- R29.3 Abnormal posture
- R29.4 Clicking hip
- R29.8 Other and unspecified symptoms and signs involving the nervous and musculoskeletal systems
Urinary system (R30–R39)[edit]
- 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
- 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
Cognition, perception, emotional state and behaviour (R40–R46)[edit]
- R40 Somnolence, stupor and coma
- 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
- 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
- Suicidal ideation (tendencies)
- 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
Speech and voice (R47–R49)[edit]
- 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
- 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[edit]
- R50 Fever of unknown origin
- 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
- R60.1 Generalized oedema
- R60.9 Oedema, unspecified
- R61 Hyperhidrosis
- R61.0 Localized hyperhidrosis
- R61.1 Generalized hyperhidrosis
- R61.9 Hyperhidrosis, unspecified
- R62 Lack of expected normal physiological development
- R62.0 Delayed milestone
- R62.8 Other lack of expected normal physiological development
- 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
On examination of blood, without diagnosis (R70–R79)[edit]
- R70 Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity
- R71 Abnormality of red blood cells
- R72 Abnormality of white blood cells, not elsewhere classified
- R73 Elevated blood glucose level
- R73.0 Abnormal glucose tolerance test
- 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
On examination of urine, without diagnosis (R80–R82)[edit]
- R80 Isolated proteinuria
- R81 Glycosuria
- R82 Other abnormal findings in urine
- R82.0 Chyluria
- R82.1 Myoglobinuria
- R82.2 Biliuria
- R82.3 Haemoglobinuria
- R82.4 Acetonuria
- 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
On examination of other body fluids, substances and tissues, without diagnosis (R83–R89)[edit]
- 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
On diagnostic imaging and in function studies, without diagnosis (R90–R94)[edit]
- 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
- R94.0 Abnormal results of function studies of central nervous system
Ill-defined and unknown causes of mortality (R95–R99)[edit]
- 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
Excludes[edit]
- Abnormal findings on antenatal screening of mother (O28.-)
- Certain conditions originating in the perinatal period (P00-P96)
- Signs and symptoms classified in the body system chapters
- Signs and symptoms of breast (N63, N64.5)
See also[edit]
Template:Symptoms concerning nutrition, metabolism and development
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