3A50.2 Beta thalassaemia International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01 Beta-thalassemia (BT) is a haemoglobinopathy characterised by deficiency (Beta+) or absence (Beta0) of synthesis of the beta globin chains of haemoglobin (Hb). Three main types of BT have been described: minor, intermedia and major with clinical presentation ranging from asymptomatic forms to microcytic anaemia and splenomegaly due to defective erythropoiesis and haemolysis.
inclusions Beta thalassaemia minor Beta thalassaemia intermedia Dominant beta thalassaemia Beta thalassaemia major postcoordination Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Has manifestation - multiple selections are allowed [select] BC60 Atrial premature depolarization BC61 Junctional premature depolarization BC62 Accessory pathway BC63 Conduction disorders – BC63.0 Atrioventricular block, first degree – BC63.1 Atrioventricular block, second degree – BC63.2 Complete atrioventricular block – BC63.3 Right bundle branch block – BC63.4 Left bundle branch block – BC63.5 Nonspecific intraventricular conduction delay – BC63.Y Other specified conduction disorders – BC63.Z Conduction disorders, unspecified –– BC63.10 High-grade second degree atrioventricular block –– BC63.1Y Other specified atrioventricular block, second degree –– BC63.1Z Atrioventricular block, second degree, unspecified –– BC63.20 Congenital complete atrioventricular block –– BC63.21 Acquired complete atrioventricular block –– BC63.2Z Complete atrioventricular block, unspecified –– BC63.40 Left anterior fascicular block –– BC63.41 Left posterior fascicular block –– BC63.4Z Left bundle branch block, fascicle unspecified BC64 Sudden arrhythmic death syndrome BC65 Cardiac arrhythmia associated with genetic disorder – BC65.0 Long QT syndrome – BC65.1 Brugada syndrome – BC65.2 Short QT syndrome – BC65.3 Early repolarisation syndrome – BC65.4 Idiopathic ventricular fibrillation – BC65.5 Catecholaminergic polymorphic ventricular tachycardia – BC65.Y Other specified cardiac arrhythmia associated with genetic disorder – BC65.Z Cardiac arrhythmia associated with genetic disorder, unspecified – BC70 Ventricular premature depolarization – BC71 Ventricular tachyarrhythmia –– BC71.0 Ventricular tachycardia –– BC71.1 Ventricular fibrillation –– BC71.2 Re-entry ventricular arrhythmia –– BC71.Y Other specified ventricular tachyarrhythmia –– BC71.Z Ventricular tachyarrhythmia, unspecified ––– BC71.00 Right outflow tract ventricular tachycardia ––– BC71.01 Polymorphic ventricular tachycardia ––– BC71.02 Sustained ventricular tachycardia ––– BC71.03 Non-sustained ventricular tachycardia ––– BC71.0Y Other specified ventricular tachycardia ––– BC71.0Z Ventricular tachycardia, unspecified – BC7Y Other specified ventricular rhythm disturbance – BC7Z Ventricular rhythm disturbance, unspecified – BC80 Supraventricular bradyarrhythmia –– BC80.0 Sinus pause –– BC80.1 Sinus bradycardia –– BC80.2 Sinus node dysfunction –– BC80.Y Other specified supraventricular bradyarrhythmia –– BC80.Z Supraventricular bradyarrhythmia, unspecified ––– BC80.20 Sick sinus syndrome ––– BC80.21 Sinoatrial block ––– BC80.2Y Other specified sinus node dysfunction ––– BC80.2Z Sinus node dysfunction, unspecified – BC81 Supraventricular tachyarrhythmia –– BC81.0 Ectopic atrial tachycardia –– BC81.1 Junctional ectopic tachycardia –– BC81.2 Macro reentrant atrial tachycardia –– BC81.3 Atrial fibrillation –– BC81.4 Wolff-Parkinson-White syndrome –– BC81.5 Sinus node reentrant tachycardia –– BC81.6 Inappropriate sinus tachycardia –– BC81.7 Atrioventricular reciprocating tachycardia –– BC81.8 Atrioventricular nodal reentry tachycardia –– BC81.Y Other specified supraventricular tachyarrhythmia –– BC81.Z Supraventricular tachyarrhythmia, unspecified ––– BC81.20 Cavotricuspid isthmus dependent macroreentry tachycardia ––– BC81.21 Non-scar, non-isthmus dependent macro reentrant atrial tachycardia ––– BC81.22 Scar mediated macro reentrant atrial tachycardia ––– BC81.2Y Other specified macro reentrant atrial tachycardia ––– BC81.2Z Macro reentrant atrial tachycardia, unspecified ––– BC81.30 Paroxysmal atrial fibrillation ––– BC81.31 Persistent atrial fibrillation ––– BC81.32 Permanent atrial fibrillation ––– BC81.33 Preexcited atrial fibrillation ––– BC81.3Y Other specified atrial fibrillation ––– BC81.3Z Atrial fibrillation, unspecified ––– BC81.70 Atrioventricular reciprocating tachycardia, orthodromic ––– BC81.71 Atrioventricular reciprocating tachycardia, antidromic ––– BC81.7Y Other specified atrioventricular reciprocating tachycardia ––– BC81.7Z Atrioventricular reciprocating tachycardia, unspecified – BC8Y Other specified supraventricular rhythm disturbance – BC8Z Supraventricular rhythm disturbance, unspecified BC90 Rhythm disturbance at level of atrioventricular junction BC91 Pacemaker or implantable cardioverter defibrillator battery at end of battery life BC9Y Other specified cardiac arrhythmia BC9Z Cardiac arrhythmia, unspecified BD10 Congestive heart failure BD11 Left ventricular failure – BD11.0 Left ventricular failure with preserved ejection fraction – BD11.1 Left ventricular failure with mid range ejection fraction – BD11.2 Left ventricular failure with reduced ejection fraction – BD11.Z Left ventricular failure, unspecified BD12 High output syndromes BD13 Right ventricular failure BD14 Biventricular failure BD1Y Other specified heart failure BD1Z Heart failure, unspecified DB93 Hepatic fibrosis or cirrhosis – DB93.0 Hepatic fibrosis – DB93.1 Hepatic cirrhosis – DB93.2 Certain specified fibrosis or cirrhosis of liver – DB93.Y Other specified hepatic fibrosis or cirrhosis –– DB93.20 Hereditary North American Indian childhood cirrhosis –– DB93.21 Idiopathic copper-associated cirrhosis – DB97.2 Chronic hepatitis, not elsewhere classified
synonyms Beta thalassaemia Mediterranean anaemia beta thalassaemia syndrome Mediterranean disease beta thalassaemia disease Beta thalassaemia minor Heterozygous beta-thalassaemia Beta thalassaemia carrier Beta thalassaemia trait Beta thalassaemia intermedia Dominant beta thalassaemia Beta thalassaemia major Cooley anaemia familial erythroblastic anaemia Compound heterozygotes for beta zero or beta+ or delta-beta-thal genes Homozygous beta thalassaemia erythroblastic anaemia of childhood Haemoglobin E beta thalassaemia Hb E/beta thalassaemia Beta-thalassemia-X-linked thrombocytopenia syndrome
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