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R69 General symptoms and signs

R70-R79 Abnormal findings on examination of blood, without diagnosis

R80-R82 Abnormal findings on examination of urine, without diagnosis

R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis

R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis

R97 Abnormal tumor markers

R99 Ill-defined and unknown cause of mortality

Symptoms and signs involving the circulatory and respiratory systems (R00-R09)

R00 Abnormalities of heart beat

Excludes1: abnormalities originating in the perinatal period (P29.1)

specified arrhythmias (I47-I49)

R00.0 Tachycardia, unspecified

Rapid heart beat

Sinoauricular tachycardia NOS

Sinus [sinusal] tachycardia NOS

Excludes1: neonatal tachycardia (P29.11)

paroxysmal tachycardia (I47.-)

R00.1 Bradycardia, unspecified

Sinoatrial bradycardia

Sinus bradycardia

Slow heart beat

Vagal bradycardia

Excludes1: neonatal bradycardia (P29.12)

R00.2 Palpitations

Awareness of heart beat

R00.8 Other abnormalities of heart beat

R00.9 Unspecified abnormalities of heart beat

Excludes1: cardiac murmurs and sounds originating in the perinatal period (P29.8)

R01.0 Benign and innocent cardiac murmurs

Functional cardiac murmur

R01.1 Cardiac murmur, unspecified

Cardiac bruit NOS

Heart murmur NOS

R01.2 Other cardiac sounds

Cardiac dullness, increased or decreased

Precordial friction

R03.