R50
Fever of other and unknown origin
General symptoms and signs (R50-R69)
Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
88 codes in this range
R50.2
Drug induced fever
R50.8
Other specified fever
R50.81
Fever presenting with conditions classified elsewhere
R50.82
Postprocedural fever
R50.83
Postvaccination fever
R50.84
Febrile nonhemolytic transfusion reaction
R50.9
Fever, unspecified
R51
Headache
R51.0
Headache with orthostatic component, not elsewhere classified
R51.9
Headache, unspecified
R52
Pain, unspecified
R53
Malaise and fatigue
R53.0
Neoplastic (malignant) related fatigue
R53.1
Weakness
R53.2
Functional quadriplegia
R53.8
Other malaise and fatigue
R53.81
Other malaise
R53.82
Chronic fatigue, unspecified
R53.83
Other fatigue
R54
Age-related physical debility
R55
Syncope and collapse
R56
Convulsions, not elsewhere classified
R56.0
Febrile convulsions
R56.00
Simple febrile convulsions
R56.01
Complex febrile convulsions
R56.1
Post traumatic seizures
R56.9
Unspecified convulsions
R57
Shock, not elsewhere classified
R57.0
Cardiogenic shock
R57.1
Hypovolemic shock
R57.8
Other shock
R57.9
Shock, unspecified
R58
Hemorrhage, not elsewhere classified
R59
Enlarged lymph nodes
R59.0
Localized enlarged lymph nodes
R59.1
Generalized enlarged lymph nodes
R59.9
Enlarged lymph nodes, unspecified
R60
Edema, not elsewhere classified
R60.0
Localized edema
R60.1
Generalized edema
R60.9
Edema, unspecified
R61
Generalized hyperhidrosis
R62
Lack of expected normal physiological development in childhood and adults
R62.0
Delayed milestone in childhood
R62.5
Other and unspecified lack of expected normal physiological development in childhood
R62.50
Unspecified lack of expected normal physiological development in childhood
R62.51
Failure to thrive (child)
R62.52
Short stature (child)
R62.59
Other lack of expected normal physiological development in childhood
R62.7
Adult failure to thrive
R63
Symptoms and signs concerning food and fluid intake
R63.0
Anorexia
R63.1
Polydipsia
R63.2
Polyphagia
R63.3
Feeding difficulties
R63.30
Feeding difficulties, unspecified
R63.31
Pediatric feeding disorder, acute
R63.32
Pediatric feeding disorder, chronic
R63.39
Other feeding difficulties
R63.4
Abnormal weight loss
R63.5
Abnormal weight gain
R63.6
Underweight
R63.8
Other symptoms and signs concerning food and fluid intake
R64
Cachexia
R65
Symptoms and signs specifically associated with systemic inflammation and infection
R65.1
Systemic inflammatory response syndrome (SIRS) of non-infectious origin
R65.10
Systemic inflammatory response syndrome (SIRS) of non-infectious origin without acute organ dysfunction
R65.11
Systemic inflammatory response syndrome (SIRS) of non-infectious origin with acute organ dysfunction
R65.2
Severe sepsis
R65.20
Severe sepsis without septic shock
R65.21
Severe sepsis with septic shock
R68
Other general symptoms and signs
R68.0
Hypothermia, not associated with low environmental temperature
R68.1
Nonspecific symptoms peculiar to infancy
R68.11
Excessive crying of infant (baby)
R68.12
Fussy infant (baby)
R68.13
Apparent life threatening event in infant (ALTE)
R68.19
Other nonspecific symptoms peculiar to infancy
R68.2
Dry mouth, unspecified
R68.3
Clubbing of fingers
R68.8
Other general symptoms and signs
R68.81
Early satiety
R68.82
Decreased libido
R68.83
Chills (without fever)
R68.84
Jaw pain
R68.89
Other general symptoms and signs
R69
Illness, unspecified